{"id":6389,"date":"2026-04-01T08:00:00","date_gmt":"2026-04-01T05:00:00","guid":{"rendered":"https:\/\/axinar.com\/faq-solbox"},"modified":"2026-04-22T15:05:07","modified_gmt":"2026-04-22T12:05:07","slug":"faq-solbox","status":"publish","type":"page","link":"https:\/\/axinar.com\/en\/faq-solbox","title":{"rendered":"FAQ Solbox"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"6389\" class=\"elementor elementor-6389 elementor-5991\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fb75c96 e-flex e-con-boxed e-con e-parent\" data-id=\"fb75c96\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0e009af elementor-widget elementor-widget-html\" data-id=\"0e009af\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<!-- AXINAR ACADEMY, FAQ SOLBOX, EN -->\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Barlow+Condensed:wght@400;500;600;700;800&family=Barlow:wght@300;400;500;600&display=swap\" rel=\"stylesheet\">\n<link rel=\"stylesheet\" href=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/font-awesome\/6.5.1\/css\/all.min.css\">\n\n<style>\n    .ax-faq { max-width: 80vw !important; 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Settings<\/a>\n        <a href=\"#sec-scale\">Limescale<\/a>\n        <a href=\"#sec-power\">Voltage &amp; Power Supply<\/a>\n        <a href=\"#sec-safety\">Safety<\/a>\n        <a href=\"#sec-installation\">Installation<\/a>\n        <a href=\"#sec-conditions\">Installation Conditions<\/a>\n        <a href=\"#sec-compatibility\">Compatibility<\/a>\n        <a href=\"#sec-panels\">Panel Connections &amp; Capacity<\/a>\n        <a href=\"#sec-resistance\">Heating Element<\/a>\n        <a href=\"#sec-backup\">Backup Heating Source<\/a>\n        <a href=\"#sec-performance\">Performance &amp; Operation<\/a>\n        <a href=\"#sec-battery\">Batteries &amp; Inverter<\/a>\n        <a href=\"#sec-warranty\">Warranty &amp; Service<\/a>\n        <a href=\"#sec-app\">App<\/a>\n        <a href=\"#sec-diagnostics\">Self-Diagnostics &amp; Alerts<\/a>\n        <a href=\"#sec-privacy\">Data Privacy<\/a>\n        <a href=\"#sec-wifi\">WiFi Connection<\/a>\n        <a href=\"#sec-updates\">Reboot &amp; Updates<\/a>\n        <a href=\"#sec-antifreeze\">Antifreeze Protection<\/a>\n        <a href=\"#sec-certification\">Installer Certification<\/a>\n        <a href=\"#sec-comparison\">SolBox vs Microinverter &amp; Solar Router<\/a>\n    <\/nav>\n\n    <div class=\"ax-faq-content\">\n        <a href=\"https:\/\/axinar.com\/en\/axinar-academy#ax-academy-faq\" class=\"ax-faq-back\"><i class=\"fas fa-arrow-left\"><\/i> Back to FAQ categories<\/a>\n\n        <!-- GENERAL -->\n        <div class=\"ax-faq-section\" id=\"sec-general\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-info-circle\"><\/i><\/div>\n                <h2>General<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"1\"><summary data-num=\"1\">What is SolBox? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox is a system that converts a standard water heater into a solar one. It receives solar energy, converts it into electrical current, regulates it, and delivers it to the water heater's heating element. In practical terms, SolBox heats the water in your boiler using solar energy.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"2\"><summary data-num=\"2\">What is SolBox not? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>If you are looking for a low-cost replacement for a cheap solar water heater, SolBox is not the right choice. SolBox offers considerably more than a conventional solar water heater.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"3\"><summary data-num=\"3\">What extra does SolBox offer? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox provides complete hot water management, free from the boiling and maintenance issues that a classic solar thermal system typically presents.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"4\"><summary data-num=\"4\">What are the dimensions and weight of SolBox? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox measures 20\u00d720\u00d710 cm and weighs 4 kg.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- ADVANTAGES -->\n        <div class=\"ax-faq-section\" id=\"sec-advantages\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-star\"><\/i><\/div>\n                <h2>Advantages<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"5\"><summary data-num=\"5\">What are the key advantages of SolBox? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><ul><li>Never boils<\/li><li>Requires zero maintenance<\/li><li>Provides complete hot water management<\/li><\/ul><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"6\"><summary data-num=\"6\">Why does SolBox never boil? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox heats water through an electric heating element and is an electrical energy system. This means that when required, it simply cuts off without any problem and stops transferring energy to the tank. This ensures you will never encounter boiling, tank damage, enamel cracking, or related issues.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- TEMPERATURE -->\n        <div class=\"ax-faq-section\" id=\"sec-temperature\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-thermometer-half\"><\/i><\/div>\n                <h2>Temperature &amp; Settings<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"7\"><summary data-num=\"7\">To what temperature does SolBox heat the water? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox takes solar heating technology a step further, it can reach the temperature set by the user. Through the app, you select the desired water temperature and the system will stop heat production regardless of solar intensity.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"8\"><summary data-num=\"8\">How does choosing a hot water temperature improve efficiency? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox allows two separate and independent temperature setpoints. You can set a different temperature for free solar hot water production, and a different temperature for the backup source where energy is billed.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"9\"><summary data-num=\"9\">What is the recommended practice for choosing hot water temperature? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p><strong>For solar production:<\/strong> Select the highest possible temperature (85\u00b0C). The logic is that we produce hot water when the sun is available and consume it when needed. Where limescale is a concern or there is no thermostatic mixing valve (risking 85\u00b0C water reaching the tap), choose a lower temperature.<\/p><p><strong>For the backup source:<\/strong> Since energy is billed, there is no reason to heat the entire tank to a high temperature. Top up only enough energy to reach an adequate temperature, typically 45\u201350\u00b0C.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- LIMESCALE -->\n        <div class=\"ax-faq-section\" id=\"sec-scale\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-tint\"><\/i><\/div>\n                <h2>Limescale<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"10\"><summary data-num=\"10\">How does SolBox affect limescale build-up in the tank? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Scale begins to form when water exceeds 43\u201350\u00b0C, depending on the area and water hardness. With SolBox you can choose a water temperature that reduces the likelihood of scale accumulation in hard-water areas.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"11\"><summary data-num=\"11\">What about limescale build-up on the heating element? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>We cannot guarantee zero limescale on the element. What we can guarantee is that because the element operates at a much lower temperature and for a much longer time to deliver the same energy, scale accumulation will be orders of magnitude lower than with a classic solar thermal system or a mains-powered electric element.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- VOLTAGE -->\n        <div class=\"ax-faq-section\" id=\"sec-power\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-bolt\"><\/i><\/div>\n                <h2>Voltage &amp; Power Supply<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"12\"><summary data-num=\"12\">What DC voltage from the panels does SolBox operate at? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox can operate in self-powered mode with up to two panels. With an external power source it can operate up to 210V DC.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"13\"><summary data-num=\"13\">How is SolBox powered? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox can self-power from the panels themselves when up to two panels are connected in series. You can also connect 2+2 panels in parallel. For more panels, an external 12V 3W power supply is required.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"14\"><summary data-num=\"14\">How do you switch the power supply on SolBox? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>To switch from self-powered to external supply, remove the jumper located on the power input, under the main cover.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"15\"><summary data-num=\"15\">When is an external power supply required for SolBox? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>External power is only required when SolBox needs to command an external heating source. This is necessary so it can access the internet when there is no sunlight at all, in order to trigger its relay. If no backup heating source is used, there is no need to connect the device to mains power.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"16\"><summary data-num=\"16\">What advantage does SolBox offer when operating in self-powered mode? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>The self-powered design of SolBox was based on the 80\/20 rule: 20% of customers create 80% of the problems. With a self-powered SolBox:<\/p><ul><li>You will never have to explain to a customer why their electricity bill was high in winter while they have \"free\" solar hot water.<\/li><li>No customer can accuse you of the water being heated from the mains.<\/li><li>A self-powered SolBox can be installed in holiday homes, caravans, mountain shelters, or any application requiring hot water without a grid connection.<\/li><\/ul><\/div><\/details>\n        <\/div>\n\n        <!-- SAFETY -->\n        <div class=\"ax-faq-section\" id=\"sec-safety\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-shield-alt\"><\/i><\/div>\n                <h2>Safety<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"17\"><summary data-num=\"17\">Can SolBox cause electric shock? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Electric shock from the mains grid occurs when current passes through the human body to ground, possible because the mains neutral is earthed.<\/p><p>In SolBox, the two PV cables are not connected to ground, so there is practically no risk of electric shock. For the same reason, no residual current device (RCD) is installed on the DC side of any PV system.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"18\"><summary data-num=\"18\">Is a safety thermostat required for SolBox? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Installing SolBox without a safety thermostat is not acceptable. This thermostat, upon reaching the preset temperature, activates and cuts the power supply. Manual reset is required to restore operation.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"19\"><summary data-num=\"19\">Can an operating thermostat be used with SolBox? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox has its own temperature sensor with which it determines whether to send energy to the boiler. Commercial water heater thermostats are designed for AC operation and are not certified for DC voltage.<\/p><p>Such a thermostat could be installed as an additional safety measure, set to a higher temperature than SolBox's electronic system.<\/p><p><strong>Important:<\/strong> Under no circumstances can SolBox replace the function of the safety thermostat. Equally, the safety thermostat function can never be replaced by an operating thermostat.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- INSTALLATION -->\n        <div class=\"ax-faq-section\" id=\"sec-installation\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-wrench\"><\/i><\/div>\n                <h2>Installation<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"20\"><summary data-num=\"20\">Is an additional panel required for a proper installation? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox is delivered ready to use, complete with a surge arrester and a 20A DC fuse. As a rule, these are sufficient for the electrical installation. In any case, consult current regulations and your installer.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"21\"><summary data-num=\"21\">What cable cross-sections are required for SolBox? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>On the DC side, SolBox does not exceed 20A. Cable cross-section is typically 4mm\u00b2, while 6mm\u00b2 cable achieves significantly lower losses. The choice is at the installer's discretion, in accordance with common practice and knowledge.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"22\"><summary data-num=\"22\">How many metres of cable can be run on the panel side? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>In practice, many metres of cable can be run on the panel side. This is a technique applied for years in rooftop and ground-mount PV systems. There are installations where the cable run was nearly 100 metres.<br><strong>Indicative losses at full sun:<\/strong><\/p><ul><li>6mm\u00b2 cable: 0.3% per 10 metres<\/li><li>4mm\u00b2 cable: 0.68% per 10 metres, if this is the only viable installation route, these losses are acceptable.<\/li><\/ul><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"23\"><summary data-num=\"23\">Where can the SolBox panel cables be routed? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Cables can be routed virtually anywhere, provided solar-rated DC\/UV-resistant cable is used. They can run under roof tiles, through conduits, through air ducts, or alongside mains cables.<\/p><p>In one installation featured in a video, the cable was run through the \u00d816 pipe from a decommissioned solar thermal system. The cable route is limited only by the installer's imagination.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"24\"><summary data-num=\"24\">How long can the cable be on the SolBox output side? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>On the output side, SolBox is delivered with approximately 1.5 metres of pre-installed cable, plus a temperature sensor cable of approximately 1.5 metres. Therefore, SolBox must be located no more than 1.5 metres from the water tank.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"25\"><summary data-num=\"25\">How long does a typical installation take? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>A typical installation takes approximately 40% less time compared to a conventional solar thermal system. SolBox has no fluids, no heavy tank to hoist onto the roof, and no pipework. Cabling is considerably easier and faster than pipework.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- INSTALLATION CONDITIONS -->\n        <div class=\"ax-faq-section\" id=\"sec-conditions\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-home\"><\/i><\/div>\n                <h2>Installation Conditions<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"26\"><summary data-num=\"26\">Where must SolBox be installed? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox must be installed in a location that is dry and protected from moisture.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"27\"><summary data-num=\"27\">Can it be installed outdoors? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Yes, it can be installed anywhere where humidity does not exceed 90%.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"28\"><summary data-num=\"28\">What are the operating temperature limits of SolBox? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>The lower temperature limit is dictated by the need to avoid condensation. If the upper temperature exceeds 35\u00b0C, system output may be reduced due to overheating.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- COMPATIBILITY -->\n        <div class=\"ax-faq-section\" id=\"sec-compatibility\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-plug\"><\/i><\/div>\n                <h2>Compatibility<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"29\"><summary data-num=\"29\">What PV panels are required for SolBox? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox can operate with any PV panel rated between 450W and 720W, with no restriction on manufacturer or type.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"30\"><summary data-num=\"30\">Which water heaters is SolBox compatible with? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox is compatible with any water heater. Tanks of 150 litres or more are recommended, following the same logic as a conventional solar system: water is heated when the sun is available, stored, and consumed when needed.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- PANELS -->\n        <div class=\"ax-faq-section\" id=\"sec-panels\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-solar-panel\"><\/i><\/div>\n                <h2>Panel Connections &amp; Capacity<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"31\"><summary data-num=\"31\">What panel configurations are available and what capacity do they cover? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p><strong>2 panels in series:<\/strong> Self-powered; covers 150 litres in summer.<\/p><p><strong>2+2 panels (2 series, 2 parallel):<\/strong> Self-powered; covers 200 litres with an extended operating season (beyond summer, into autumn and spring), or 150 litres in partial cloud.<\/p><p><strong>3 panels in series:<\/strong> Comfortably covers 150 and 200 litres in summer.<\/p><p><strong>6 panels (3+3 in series):<\/strong> Maximum SolBox output; covers 300 litres in partial cloud with a maximised operating season.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"32\"><summary data-num=\"32\">Why doesn't SolBox restrict the number of panels based on tank size? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>A key difference from conventional solar thermal is that SolBox does not define the number of panels based on tank size. In conventional systems this restriction exists to prevent summer boiling. SolBox is an electrical system: when it should not produce, it simply switches off. You can connect 6 panels to an 80-litre tank and have hot water even on moonlit nights.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- HEATING ELEMENT -->\n        <div class=\"ax-faq-section\" id=\"sec-resistance\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-fire\"><\/i><\/div>\n                <h2>Heating Element<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"33\"><summary data-num=\"33\">What type of heating element does the water heater need? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Axinar offers dedicated heating elements designed with the exact electrical properties required for optimum SolBox performance.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"34\"><summary data-num=\"34\">Is it mandatory to use the Axinar heating element? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>No. We have no intention of locking technicians to our parts or delaying any service. Alternatively, a 3-phase 9kW or 12kW element can be used with all 3 windings connected in parallel, so the resistance drops to 1\/3 of a single winding and becomes compatible with SolBox voltage.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"35\"><summary data-num=\"35\">Does SolBox work with an existing heating element or does it need replacing? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>It works with an existing element unless it does not match SolBox requirements. With the wrong element there will be reduced performance, but it will suffice until the correct one is fitted.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"36\"><summary data-num=\"36\">With so many power variations, why doesn't the heating element's lifespan shorten? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>A heating element has no active role, it simply converts electrical flow into heat. If the element were a light bulb, on a cloudy day you would see it varying in brightness like a Christmas fairy light. But an element submerged in water has no problem at all with these variations.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- BACKUP HEATING -->\n        <div class=\"ax-faq-section\" id=\"sec-backup\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-exchange-alt\"><\/i><\/div>\n                <h2>Backup Heating Source<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"37\"><summary data-num=\"37\">How exactly does the backup heating source work? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox has a built-in relay with a dry contact rated at 250V \/ 3A. This contact is sufficient to command another heat source.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"38\"><summary data-num=\"38\">What sources can SolBox command directly? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Any source that requires only a low-current signal. If a mains electric element needs to be connected for domestic hot water production, an external power relay is required.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"39\"><summary data-num=\"39\">How many different commands can SolBox issue? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox can command hot water production in two ways:<\/p><p><strong>Scheduled time:<\/strong> A specific time is set and, if necessary, the backup source activates to heat the water to the desired temperature, after which the system returns to standby.<\/p><p><strong>Time window:<\/strong> A time range is defined and SolBox can issue commands as many times as needed within that window.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"40\"><summary data-num=\"40\">What happens in cloudy weather or in winter? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>This is where SolBox's major energy advantage lies. The system delivers as much energy as it can, and the remainder is automatically topped up by the backup energy source. The share produced by SolBox is always the maximum possible and is unaffected, no valve changes or manual adjustments are needed.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- PERFORMANCE -->\n        <div class=\"ax-faq-section\" id=\"sec-performance\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-chart-line\"><\/i><\/div>\n                <h2>Performance &amp; Operation<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"41\"><summary data-num=\"41\">What is the minimum output SolBox can produce? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox starts at first light, producing energy from as little as 10W up to maximum. 10W obviously does not heat the water, but the system can harvest the very last joule of energy.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"42\"><summary data-num=\"42\">How does SolBox respond to changes in solar irradiance? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>A major SolBox advantage that no other solar energy source can match is that it adapts to changing irradiance within 10 seconds. Even if the clouds part for just a few minutes, SolBox produces the maximum possible energy in that window, filling the tank with as much free energy as it can.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"43\"><summary data-num=\"43\">How many times per second does SolBox adjust its energy output? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox's MPPT finds the optimum operating point twice per second. Its response to irradiance changes is essentially instantaneous and incomparably faster than conventional solar systems.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"44\"><summary data-num=\"44\">How much more energy can SolBox produce compared to a conventional inverter or battery charger? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Depending on conditions, especially on partially cloudy days, SolBox can deliver up to 10% more energy. This is not a marketing claim; it is reality. SolBox follows no charging curves or grid-synchronisation profiles. It can literally vary output from maximum to minimum in seconds, because the energy goes into a resistive element rather than a conventional electrical load.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- BATTERIES -->\n        <div class=\"ax-faq-section\" id=\"sec-battery\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-battery-full\"><\/i><\/div>\n                <h2>Batteries &amp; Inverter<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"45\"><summary data-num=\"45\">Does SolBox work with batteries? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>It can be powered from batteries in an off-grid system, but it has a constant 3W draw. In an off-grid system without a backup energy source for hot water, it is more efficient to set it to self-powered mode to avoid draining battery autonomy.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"46\"><summary data-num=\"46\">Once the water is heated, can excess energy go to batteries? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p><strong>No<\/strong>, for two reasons:<\/p><p><strong>Uneconomical:<\/strong> If 2 kWh of energy is surplus, simply increase the tank capacity. Energy stored in water is approximately 140 times cheaper per kWh than energy stored in batteries.<\/p><p><strong>Technical limitation:<\/strong> SolBox does not produce charging-compatible current, only PWM optimised for use with a resistive element.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"47\"><summary data-num=\"47\">Is SolBox an inverter? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>No. SolBox does not output 220V AC. It outputs a DC pulse. Any device connected that is not a simple resistive element will be destroyed immediately, either the device or SolBox.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"48\"><summary data-num=\"48\">Can SolBox charge batteries? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p><strong>No.<\/strong> SolBox has MPPT on the input, but on the output it follows no charging curve. It produces PWM suitable only for a resistive element. The most likely outcome is immediate destruction of either the battery or SolBox. It is not designed to have any energy source in any form on its output.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- WARRANTY -->\n        <div class=\"ax-faq-section\" id=\"sec-warranty\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-file-contract\"><\/i><\/div>\n                <h2>Warranty &amp; Service<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"49\"><summary data-num=\"49\">What warranty does SolBox carry? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox carries a 5-year warranty and its expected service life is 25 years.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"50\"><summary data-num=\"50\">What happens if it breaks down? Is service available? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox is designed and manufactured 100% in Greece, by us. This means we are able to repair anything that may occur on its PCB.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"51\"><summary data-num=\"51\">Can SolBox affect the home's net metering or net billing? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>No. SolBox has no connection whatsoever with the grid to which the home is connected, so it cannot affect or interact with net metering or net billing in any way.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- APP -->\n        <div class=\"ax-faq-section\" id=\"sec-app\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-mobile-alt\"><\/i><\/div>\n                <h2>App<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"52\"><summary data-num=\"52\">What does the end user see in the app? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>With an end-user licence, the app displays the key measurements, device status, and control and status of the backup heating source. It does not overwhelm the end user with unnecessary technical information.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"53\"><summary data-num=\"53\">What does the technician\/installer see in the app? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>With an installer licence, the app displays additional measurements, voltage, current, output power, operating temperature, etc., for the devices the end user has granted access to.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"54\"><summary data-num=\"54\">What useful information can the technician obtain from the app? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>The technician can know exactly what the fault is and how the system is behaving. This means they can arrive on site fully prepared to resolve any problem immediately, knowing in advance what parts are needed and what actions are required.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"55\"><summary data-num=\"55\">How many SolBox devices can one account manage? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>One account can manage an unlimited number of devices. Each device can be given a custom name for easy identification.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"56\"><summary data-num=\"56\">Can the technician give their customers' devices different names? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Yes. The technician can assign their own name to each device, independently of the name given by the customer, so they can easily identify which device belongs to which customer.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"57\"><summary data-num=\"57\">On which platforms is the app available? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>The app runs on all platforms (iOS, Android, desktop) as it is a Single Page Application (SPA).<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"58\"><summary data-num=\"58\">In how many languages is the app available? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>The app is available in 4 languages and can easily be translated into any language upon request. This is a fundamental prerequisite for export growth.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"59\"><summary data-num=\"59\">Is there a production history in the app? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Yes. The user sees the total and daily history. The technician can view every day over a 30-day period, along with averages and production graphs.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"60\"><summary data-num=\"60\">How can a technician identify a specific device in a location with multiple SolBox units? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>The technician can tap \"Identify\" in the app and watch the LEDs of that specific device flash in a distinctive pattern.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"61\"><summary data-num=\"61\">Are installation tutorial videos available? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Not yet, but they are planned.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- DIAGNOSTICS -->\n        <div class=\"ax-faq-section\" id=\"sec-diagnostics\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-stethoscope\"><\/i><\/div>\n                <h2>Self-Diagnostics &amp; Alerts<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"62\"><summary data-num=\"62\">Does SolBox have self-diagnostics? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Yes. SolBox checks 15 different functions and conditions every second to monitor its own operation.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"63\"><summary data-num=\"63\">Who is notified of faults? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>If the end user has granted permission through the app, their chosen technician can receive automatic notifications and remotely monitor the SolBox status.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"64\"><summary data-num=\"64\">Can the owner change the connected technician? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Of course. The primary account holder decides who to share the device with and what permissions each user has.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"65\"><summary data-num=\"65\">Can SolBox detect shading? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Yes. Its production graph mirrors daily solar irradiance, on a clear day it appears as an ideal bell curve. If a recurring power dip occurs at a specific time, that indicates shading.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"66\"><summary data-num=\"66\">Can SolBox calculate the lost kWh for the day? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Yes. Because it always produces at maximum output and shuts off once the water reaches the target temperature, it can use linear interpolation to calculate lost kWh per day. This allows the technician to easily determine whether additional panels are needed or whether a larger tank is required.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- PRIVACY -->\n        <div class=\"ax-faq-section\" id=\"sec-privacy\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-lock\"><\/i><\/div>\n                <h2>Data Privacy<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"67\"><summary data-num=\"67\">What does the company see from the device? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>The company collects data from internet-connected devices on an internal European server, but the data is anonymous. We see the devices, consumption, production, production curves, etc., but we cannot see which device belongs to whom or to which account.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"68\"><summary data-num=\"68\">How can the company provide support with only anonymous data? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>When someone calls or emails for support, they need to provide the device serial number. This allows us to identify the specific device.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"69\"><summary data-num=\"69\">How long is the anonymous data retained and why? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>To provide reliable service and useful guidance, we retain data for 30 days. This history provides whatever information we need to resolve any issue quickly and efficiently.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- WIFI -->\n        <div class=\"ax-faq-section\" id=\"sec-wifi\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-wifi\"><\/i><\/div>\n                <h2>WiFi Connection<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"70\"><summary data-num=\"70\">Can SolBox operate without an internet connection? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Of course. The hot water production function is fully autonomous and requires no connection.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"71\"><summary data-num=\"71\">What type of WiFi is SolBox compatible with? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox is compatible with every type of WiFi network, without any restriction.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"72\"><summary data-num=\"72\">Is an Ethernet connection possible? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>No, Ethernet connectivity is not available.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"73\"><summary data-num=\"73\">When is a WiFi connection required? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>When the backup source is configured to guarantee hot water availability at specific times, an internet connection is required. If the connection is lost, the scheduling function stops after the device reboots.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"74\"><summary data-num=\"74\">What happens if the WiFi connection is lost during the day? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>SolBox temporarily retains the scheduling function until the device reboots.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"75\"><summary data-num=\"75\">Why doesn't scheduling work after reboot without WiFi? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>For safety reasons, we want the user to be able to interact with the device while it is running an automatic programme. The system temporarily retains scheduling for cases where the internet drops briefly, but following a reboot it does not resume the schedule automatically.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- REBOOT & UPDATES -->\n        <div class=\"ax-faq-section\" id=\"sec-updates\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-sync\"><\/i><\/div>\n                <h2>Reboot &amp; Updates<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"76\"><summary data-num=\"76\">How often does SolBox reboot? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>The self-powered SolBox reboots every time the day ends and power production stops. The externally powered version is programmed to reboot every evening.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"77\"><summary data-num=\"77\">Does SolBox receive updates? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Yes. SolBox checks for updates every morning. A new update adds features or resolves a potential bug and is essential for safe operation. The process runs automatically.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- ANTIFREEZE -->\n        <div class=\"ax-faq-section\" id=\"sec-antifreeze\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-snowflake\"><\/i><\/div>\n                <h2>Antifreeze Protection<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"78\"><summary data-num=\"78\">Does SolBox have an antifreeze function? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Yes. Even when the schedule is inactive, if a water temperature below 5\u00b0C is detected, the system automatically commands the backup source until the water reaches 8\u00b0C. This provides additional antifreeze protection for the installation.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"79\"><summary data-num=\"79\">Is antifreeze protection guaranteed? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>No. It cannot be guaranteed to save an installation under all circumstances, but it acts as a supplementary measure. Additional precautions must be taken according to each specific installation.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- CERTIFICATION -->\n        <div class=\"ax-faq-section\" id=\"sec-certification\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-certificate\"><\/i><\/div>\n                <h2>Installer Certification<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"80\"><summary data-num=\"80\">Is there an installer certification programme? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Yes, a certification programme exists. Certification is valuable and demonstrates that the installer knows the product. However, non-certified installers are not excluded, it is the customer's choice to select the installer they prefer.<\/p><\/div><\/details>\n        <\/div>\n\n        <!-- COMPARISON -->\n        <div class=\"ax-faq-section\" id=\"sec-comparison\">\n            <div class=\"ax-faq-section-header\">\n                <div class=\"ax-faq-section-icon\"><i class=\"fas fa-balance-scale\"><\/i><\/div>\n                <h2>SolBox vs Microinverter &amp; Solar Router<\/h2>\n            <\/div>\n            <details class=\"ax-faq-item\" data-num=\"81\"><summary data-num=\"81\">What is a solar router and how does it work? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>A solar router is a device used in combination with a microinverter. The microinverter converts DC from the panels to AC and feeds it into the home network. The solar router detects whether there is a surplus of energy and redirects it to the water heater's element via a dimmer (triac).<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"82\"><summary data-num=\"82\">Why does a solar router only supply energy to the water heater when there is a surplus? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>The microinverter powers the home's needs first. Only what is left over goes to the water heater. If the washing machine, oven, or air conditioners are running, nothing is left over. With SolBox, the panels are exclusively dedicated to hot water and do not compete with any other load.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"83\"><summary data-num=\"83\">Can a solar router heat water in winter? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>In winter, panels rarely produce enough even for basic household needs. There is no surplus, so the router sends nothing to the water heater. SolBox utilises every watt the panel produces, even if it is just 10W.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"84\"><summary data-num=\"84\">Are 800W from a microinverter enough to heat water? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Plug-and-play microinverter systems in Europe are limited by regulation to 800W AC. A water heater element operates at 2,000\u20134,500W. Even if all the energy went to the water heater, 800W would be entirely insufficient. SolBox accepts up to 6 panels (~3,500W) with no regulatory restriction, because it is not connected to the grid.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"85\"><summary data-num=\"85\">Does a solar router require a grid connection? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Yes. A microinverter cannot operate without the grid, because it must synchronise with the 50Hz frequency. If the power goes out or there is no connection, it stops. SolBox self-powers from the panels and operates wherever there is sun.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"86\"><summary data-num=\"86\">How complex is a solar router installation? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>A solar router requires a microinverter, a CT clamp on the distribution board, a wireless transmitter, a grid connection, and WiFi configuration between the components, meaning an electrician must intervene in the distribution board. With SolBox, all connections are made with plugs and connectors; no board intervention is required.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"87\"><summary data-num=\"87\">Does a solar router introduce harmonics into the home network? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>Yes. The solar router's triac chops the AC sine wave, creating harmonics that can affect sensitive equipment. SolBox operates exclusively on DC and has absolutely no effect on the home's electrical network.<\/p><\/div><div class=\"ax-faq-next\" onclick=\"axFaqNext(this)\"><i class=\"fas fa-arrow-down\"><\/i> Next question<\/div><\/details>\n            <details class=\"ax-faq-item\" data-num=\"88\"><summary data-num=\"88\">Does a microinverter require paperwork? <span class=\"ax-faq-arrow\"><i class=\"fas fa-chevron-down\"><\/i><\/span><\/summary><div class=\"ax-faq-a-inner\"><p>A microinverter connects to the grid and in many European countries requires a declaration to the distribution network operator. SolBox has no relation to the grid, no documentation or declaration is required.<\/p><\/div><\/details>\n        <\/div>\n\n    <\/div>\n<\/div>\n\n<\/div>\n\n<!-- FAQ Schema -->\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\"@type\":\"Question\",\"name\":\"What is SolBox?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox is a system that converts a standard water heater into a solar one. It receives solar energy, converts it into electrical current, regulates it, and delivers it to the water heater's heating element. In practical terms, SolBox heats the water in your boiler using solar energy.\"}},\n    {\"@type\":\"Question\",\"name\":\"What is SolBox not?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"If you are looking for a low-cost replacement for a cheap solar water heater, SolBox is not the right choice. SolBox offers considerably more than a conventional solar water heater.\"}},\n    {\"@type\":\"Question\",\"name\":\"What extra does SolBox offer?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox provides complete hot water management, free from the boiling and maintenance issues that a classic solar thermal system typically presents.\"}},\n    {\"@type\":\"Question\",\"name\":\"What are the dimensions and weight of SolBox?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox measures 20x20x10 cm and weighs 4 kg.\"}},\n    {\"@type\":\"Question\",\"name\":\"What are the key advantages of SolBox?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Never boils. Requires zero maintenance. Provides complete hot water management.\"}},\n    {\"@type\":\"Question\",\"name\":\"Why does SolBox never boil?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox heats water through an electric heating element and is an electrical energy system. When required, it simply cuts off without any problem and stops transferring energy to the tank. This ensures you will never encounter boiling, tank damage, enamel cracking, or related issues.\"}},\n    {\"@type\":\"Question\",\"name\":\"To what temperature does SolBox heat the water?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox takes solar heating technology a step further, it can reach the temperature set by the user. Through the app, you select the desired water temperature and the system will stop heat production regardless of solar intensity.\"}},\n    {\"@type\":\"Question\",\"name\":\"How does choosing a hot water temperature improve efficiency?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox allows two separate and independent temperature setpoints. You can set a different temperature for free solar hot water production, and a different temperature for the backup source where energy is billed.\"}},\n    {\"@type\":\"Question\",\"name\":\"What is the recommended practice for choosing hot water temperature?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For solar production: Select the highest possible temperature (85\u00b0C). For the backup source: Since energy is billed, top up only enough energy to reach an adequate temperature, typically 45-50\u00b0C.\"}},\n    {\"@type\":\"Question\",\"name\":\"How does SolBox affect limescale build-up in the tank?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Scale begins to form when water exceeds 43-50\u00b0C. With SolBox you can choose a water temperature that reduces the likelihood of scale accumulation in hard-water areas.\"}},\n    {\"@type\":\"Question\",\"name\":\"What about limescale build-up on the heating element?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Because the element operates at a much lower temperature and for a much longer time to deliver the same energy, scale accumulation will be orders of magnitude lower than with a classic solar thermal system or a mains-powered electric element.\"}},\n    {\"@type\":\"Question\",\"name\":\"What DC voltage from the panels does SolBox operate at?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox can operate in self-powered mode with up to two panels. With an external power source it can operate up to 210V DC.\"}},\n    {\"@type\":\"Question\",\"name\":\"How is SolBox powered?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox can self-power from the panels when up to two panels are connected in series. You can also connect 2+2 panels. For more panels, an external 12V 3W power supply is required.\"}},\n    {\"@type\":\"Question\",\"name\":\"How do you switch the power supply on SolBox?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"To switch from self-powered to external supply, remove the jumper located on the power input, under the main cover.\"}},\n    {\"@type\":\"Question\",\"name\":\"When is an external power supply required for SolBox?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"External power is only required when SolBox needs to command an external heating source. If no backup heating source is used, there is no need to connect the device to mains power.\"}},\n    {\"@type\":\"Question\",\"name\":\"What advantage does SolBox offer in self-powered mode?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A self-powered SolBox ensures no unexpected electricity bills from solar hot water, can be installed off-grid in holiday homes, caravans, or mountain shelters.\"}},\n    {\"@type\":\"Question\",\"name\":\"Can SolBox cause electric shock?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"In SolBox, the two PV cables are not connected to ground, so there is practically no risk of electric shock.\"}},\n    {\"@type\":\"Question\",\"name\":\"Is a safety thermostat required for SolBox?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Installing SolBox without a safety thermostat is not acceptable. This thermostat activates and cuts power upon reaching the preset temperature, requiring manual reset to restore operation.\"}},\n    {\"@type\":\"Question\",\"name\":\"Can an operating thermostat be used with SolBox?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox has its own temperature sensor. A commercial thermostat could be added as an extra safety measure at a higher temperature, but it can never replace the safety thermostat.\"}},\n    {\"@type\":\"Question\",\"name\":\"Is an additional panel required for a proper installation?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox is delivered ready with a surge arrester and a 20A DC fuse. As a rule, these are sufficient. Consult current regulations and your installer.\"}},\n    {\"@type\":\"Question\",\"name\":\"What cable cross-sections are required for SolBox?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"On the DC side, SolBox does not exceed 20A. Typical cross-section is 4mm\u00b2; 6mm\u00b2 achieves significantly lower losses.\"}},\n    {\"@type\":\"Question\",\"name\":\"How many metres of cable can be run on the panel side?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Many metres are possible. Losses: 6mm\u00b2 cable 0.3% per 10m, 4mm\u00b2 cable 0.68% per 10m. Installations of nearly 100m have been documented.\"}},\n    {\"@type\":\"Question\",\"name\":\"Where can the SolBox panel cables be routed?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Anywhere, using solar-rated DC\/UV-resistant cable. Under roof tiles, through conduits, air ducts, or alongside mains cables.\"}},\n    {\"@type\":\"Question\",\"name\":\"How long can the cable be on the SolBox output side?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox is delivered with approximately 1.5m of output cable and 1.5m of sensor cable. It must be located no more than 1.5m from the water tank.\"}},\n    {\"@type\":\"Question\",\"name\":\"How long does a typical installation take?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Approximately 40% less time than a conventional solar thermal system. No fluids, no heavy roof-mounted tank, no pipework.\"}},\n    {\"@type\":\"Question\",\"name\":\"Where must SolBox be installed?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"In a dry location protected from moisture.\"}},\n    {\"@type\":\"Question\",\"name\":\"Can it be installed outdoors?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, anywhere humidity does not exceed 90%.\"}},\n    {\"@type\":\"Question\",\"name\":\"What are the operating temperature limits of SolBox?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Low temperature is limited by the need to avoid condensation. Above 35\u00b0C ambient, system output may reduce due to overheating.\"}},\n    {\"@type\":\"Question\",\"name\":\"What PV panels are required for SolBox?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Any PV panel rated between 450W and 720W, with no restriction on manufacturer or type.\"}},\n    {\"@type\":\"Question\",\"name\":\"Which water heaters is SolBox compatible with?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Any water heater. Tanks of 150 litres or more are recommended.\"}},\n    {\"@type\":\"Question\",\"name\":\"What panel configurations are available and what capacity do they cover?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"2 panels in series: 150 litres in summer. 2+2 panels: 200 litres with extended season. 3 panels in series: 150-200 litres in summer. 6 panels (3+3): 300 litres with partial cloud.\"}},\n    {\"@type\":\"Question\",\"name\":\"Why doesn't SolBox restrict the number of panels based on tank size?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox is an electrical system: when it should not produce, it simply switches off. You can connect 6 panels to an 80-litre tank without any boiling risk.\"}},\n    {\"@type\":\"Question\",\"name\":\"What type of heating element does the water heater need?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Axinar offers dedicated heating elements designed with the exact electrical properties required for optimum SolBox performance.\"}},\n    {\"@type\":\"Question\",\"name\":\"Is it mandatory to use the Axinar heating element?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. A 3-phase 9kW or 12kW element with all 3 windings in parallel can be used as an alternative.\"}},\n    {\"@type\":\"Question\",\"name\":\"Does SolBox work with an existing heating element?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, unless it does not match SolBox requirements. Performance will be reduced but it will function until the correct element is fitted.\"}},\n    {\"@type\":\"Question\",\"name\":\"With so many power variations, why doesn't the heating element lifespan shorten?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A heating element simply converts electrical flow to heat. A resistive element submerged in water has no problem with power variations.\"}},\n    {\"@type\":\"Question\",\"name\":\"How exactly does the backup heating source work?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox has a built-in relay with a dry contact rated at 250V\/3A, sufficient to command another heat source.\"}},\n    {\"@type\":\"Question\",\"name\":\"What sources can SolBox command directly?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Any source requiring only a low-current signal. For a mains electric element, an external power relay is required.\"}},\n    {\"@type\":\"Question\",\"name\":\"How many different commands can SolBox issue?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Two modes: Scheduled time (activates at a set time if needed) or Time window (commands as many times as needed within a defined range).\"}},\n    {\"@type\":\"Question\",\"name\":\"What happens in cloudy weather or in winter?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox delivers as much energy as it can; the remainder is automatically topped up by the backup source. No manual adjustments are needed.\"}},\n    {\"@type\":\"Question\",\"name\":\"What is the minimum output SolBox can produce?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox starts at first light, producing energy from as little as 10W up to maximum.\"}},\n    {\"@type\":\"Question\",\"name\":\"How does SolBox respond to changes in solar irradiance?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It adapts to changing irradiance within 10 seconds, producing maximum possible energy even during brief sunny breaks.\"}},\n    {\"@type\":\"Question\",\"name\":\"How many times per second does SolBox adjust its energy output?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox's MPPT finds the optimum operating point twice per second.\"}},\n    {\"@type\":\"Question\",\"name\":\"How much more energy can SolBox produce compared to a conventional inverter?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Up to 10% more energy, especially on partially cloudy days, because it follows no charging curves or grid-sync profiles.\"}},\n    {\"@type\":\"Question\",\"name\":\"Does SolBox work with batteries?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It can be powered from batteries but has a constant 3W draw. In off-grid systems without backup heating, self-powered mode is more efficient.\"}},\n    {\"@type\":\"Question\",\"name\":\"Once the water is heated, can excess energy go to batteries?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. It is uneconomical (water storage is ~140x cheaper per kWh than batteries) and technically impossible (SolBox only outputs PWM for resistive elements).\"}},\n    {\"@type\":\"Question\",\"name\":\"Is SolBox an inverter?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. SolBox outputs a DC pulse. Any non-resistive device connected will be destroyed immediately.\"}},\n    {\"@type\":\"Question\",\"name\":\"Can SolBox charge batteries?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. SolBox produces PWM suitable only for a resistive element; connecting batteries would likely destroy either the battery or SolBox.\"}},\n    {\"@type\":\"Question\",\"name\":\"What warranty does SolBox carry?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"5-year warranty; expected service life of 25 years.\"}},\n    {\"@type\":\"Question\",\"name\":\"What happens if it breaks down? Is service available?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox is designed and manufactured 100% in Greece, by us, so we can repair anything that may occur on its PCB.\"}},\n    {\"@type\":\"Question\",\"name\":\"Can SolBox affect the home's net metering or net billing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. SolBox has no connection to the grid, so it cannot affect net metering or net billing in any way.\"}},\n    {\"@type\":\"Question\",\"name\":\"What does the end user see in the app?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Key measurements, device status, and control of the backup heating source, without unnecessary technical information.\"}},\n    {\"@type\":\"Question\",\"name\":\"What does the technician\/installer see in the app?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Additional measurements: voltage, current, output power, operating temperature, etc., for devices the end user has granted access to.\"}},\n    {\"@type\":\"Question\",\"name\":\"What useful information can the technician obtain from the app?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The exact fault and system behaviour, so they arrive on site prepared with the right parts and actions.\"}},\n    {\"@type\":\"Question\",\"name\":\"How many SolBox devices can one account manage?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"An unlimited number of devices, each with a custom name.\"}},\n    {\"@type\":\"Question\",\"name\":\"Can the technician give their customers' devices different names?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, the technician assigns their own name to each device independently of the customer's name.\"}},\n    {\"@type\":\"Question\",\"name\":\"On which platforms is the app available?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"All platforms (iOS, Android, desktop) as it is a Single Page Application (SPA).\"}},\n    {\"@type\":\"Question\",\"name\":\"In how many languages is the app available?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"4 languages, and it can easily be translated into any language upon request.\"}},\n    {\"@type\":\"Question\",\"name\":\"Is there a production history in the app?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Users see total and daily history. Technicians can view every day over 30 days, with averages and production graphs.\"}},\n    {\"@type\":\"Question\",\"name\":\"How can a technician identify a specific device among multiple SolBox units?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Tap Identify in the app and the LEDs of that device will flash in a distinctive pattern.\"}},\n    {\"@type\":\"Question\",\"name\":\"Are installation tutorial videos available?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Not yet, but they are planned.\"}},\n    {\"@type\":\"Question\",\"name\":\"Does SolBox have self-diagnostics?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. SolBox checks 15 different functions and conditions every second.\"}},\n    {\"@type\":\"Question\",\"name\":\"Who is notified of faults?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"If the end user has granted permission, their chosen technician can receive automatic notifications and remotely monitor SolBox status.\"}},\n    {\"@type\":\"Question\",\"name\":\"Can the owner change the connected technician?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The primary account holder decides who to share the device with and what permissions each user has.\"}},\n    {\"@type\":\"Question\",\"name\":\"Can SolBox detect shading?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Its production graph mirrors daily solar irradiance. A recurring power dip at a specific time indicates shading.\"}},\n    {\"@type\":\"Question\",\"name\":\"Can SolBox calculate the lost kWh for the day?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, using linear interpolation. The technician can determine whether more panels or a larger tank is needed.\"}},\n    {\"@type\":\"Question\",\"name\":\"What does the company see from the device?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Anonymous data on consumption, production and production curves stored on a European server. We cannot see which device belongs to whom.\"}},\n    {\"@type\":\"Question\",\"name\":\"How can the company provide support with only anonymous data?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The user provides the device serial number when contacting support, allowing us to identify the specific device.\"}},\n    {\"@type\":\"Question\",\"name\":\"How long is the anonymous data retained?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"30 days, to provide reliable service and resolve any issue quickly.\"}},\n    {\"@type\":\"Question\",\"name\":\"Can SolBox operate without an internet connection?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The hot water production function is fully autonomous.\"}},\n    {\"@type\":\"Question\",\"name\":\"What type of WiFi is SolBox compatible with?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Every type of WiFi network, without any restriction.\"}},\n    {\"@type\":\"Question\",\"name\":\"Is an Ethernet connection possible?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, Ethernet connectivity is not available.\"}},\n    {\"@type\":\"Question\",\"name\":\"When is a WiFi connection required?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"When the backup source is configured for scheduled hot water availability. If lost, scheduling stops after reboot.\"}},\n    {\"@type\":\"Question\",\"name\":\"What happens if the WiFi connection is lost during the day?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"SolBox temporarily retains the scheduling function until the device reboots.\"}},\n    {\"@type\":\"Question\",\"name\":\"Why doesn't scheduling work after reboot without WiFi?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For safety, scheduling does not resume automatically after a reboot without an internet connection.\"}},\n    {\"@type\":\"Question\",\"name\":\"How often does SolBox reboot?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The self-powered SolBox reboots when the day ends and power stops. The externally powered version reboots every evening.\"}},\n    {\"@type\":\"Question\",\"name\":\"Does SolBox receive updates?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. It checks for updates every morning and applies them automatically.\"}},\n    {\"@type\":\"Question\",\"name\":\"Does SolBox have an antifreeze function?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. If water temperature drops below 5\u00b0C, the system automatically commands the backup source until water reaches 8\u00b0C.\"}},\n    {\"@type\":\"Question\",\"name\":\"Is antifreeze protection guaranteed?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, it is a supplementary measure. Additional precautions must be taken per installation.\"}},\n    {\"@type\":\"Question\",\"name\":\"Is there an installer certification programme?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Certification demonstrates product knowledge but non-certified installers are not excluded.\"}},\n    {\"@type\":\"Question\",\"name\":\"What is a solar router and how does it work?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A solar router detects surplus energy from a microinverter and redirects it to the water heater element via a triac dimmer.\"}},\n    {\"@type\":\"Question\",\"name\":\"Why does a solar router only supply energy when there is a surplus?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The microinverter powers household needs first. SolBox panels are exclusively dedicated to hot water with no competing loads.\"}},\n    {\"@type\":\"Question\",\"name\":\"Can a solar router heat water in winter?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Rarely, panels barely cover household needs in winter so no surplus exists. SolBox uses every watt from as little as 10W.\"}},\n    {\"@type\":\"Question\",\"name\":\"Are 800W from a microinverter enough to heat water?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. A water heater element needs 2,000-4,500W. SolBox accepts up to 6 panels (~3,500W) with no regulatory restriction.\"}},\n    {\"@type\":\"Question\",\"name\":\"Does a solar router require a grid connection?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, the microinverter must synchronise with 50Hz. SolBox self-powers from panels and works anywhere there is sun.\"}},\n    {\"@type\":\"Question\",\"name\":\"How complex is a solar router installation?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Requires microinverter, CT clamp, wireless transmitter, grid connection, and WiFi config, including board intervention. SolBox only needs plug connections.\"}},\n    {\"@type\":\"Question\",\"name\":\"Does a solar router introduce harmonics into the home network?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, its triac chops the AC sine wave. SolBox operates exclusively on DC and has no effect on the home network.\"}},\n    {\"@type\":\"Question\",\"name\":\"Does a microinverter require paperwork?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"In many European countries yes. SolBox has no relation to the grid, no documentation or declaration is required.\"}}\n  ]\n}\n<\/script>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Home \/ Academy \/ FAQ SolBox SolBox Frequently Asked Questions 88 questions and answers about SolBox, installation, operation, compatibility, application [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":4154,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_eb_attr":"","site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-6389","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/axinar.com\/en\/wp-json\/wp\/v2\/pages\/6389","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/axinar.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/axinar.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/axinar.com\/en\/wp-json\/wp\/v2\/users\/16"}],"replies":[{"embeddable":true,"href":"https:\/\/axinar.com\/en\/wp-json\/wp\/v2\/comments?post=6389"}],"version-history":[{"count":1,"href":"https:\/\/axinar.com\/en\/wp-json\/wp\/v2\/pages\/6389\/revisions"}],"predecessor-version":[{"id":7211,"href":"https:\/\/axinar.com\/en\/wp-json\/wp\/v2\/pages\/6389\/revisions\/7211"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/axinar.com\/en\/wp-json\/wp\/v2\/media\/4154"}],"wp:attachment":[{"href":"https:\/\/axinar.com\/en\/wp-json\/wp\/v2\/media?parent=6389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}