{"product_id":"solar-hybridboiler-fothermo-pvb-30-ac-30-liter","title":"Solar hybrid boiler fothermo PVB-30-AC – 30 liters, 550 W PV \/ 1,500 W AC","description":"\u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eProduct Overview \u0026amp; Areas of Application\u003c\/h2\u003e \u003cp\u003eThe fothermo PVB-30-AC is a wall-mounted solar hybrid boiler for water heating using photovoltaic power and on-demand auxiliary heating via the 230 V mains supply. The direct current from the connected photovoltaic modules is used directly to heat the stored water without an upstream inverter.\u003c\/p\u003e \u003cp\u003eThe device belongs to the 30-liter class and has an actual usable capacity of 29 liters. Thanks to the integrated mains auxiliary heating, the hybrid boiler can replace a classic electric boiler in a compact hot water system and maintain an adjustable minimum temperature even when solar radiation is low.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eTechnology \u0026amp; Equipment\u003c\/h2\u003e \u003cp\u003eFor photovoltaic operation, a continuously adjustable heating output of up to 550 W is available. An integrated MPP tracker adjusts the operating point to the available solar power. The digital display shows the water temperature, PV input power, PV voltage, and the total photovoltaic energy used.\u003c\/p\u003e \u003cp\u003eA second heating element enables auxiliary heating with 1,500 W via the 230 V mains supply. The desired minimum temperature is set using a rotary thermostat. If the water temperature falls below this value, the water is automatically reheated with mains electricity.\u003c\/p\u003e \u003cp\u003eThe pressure-resistant storage tank is made of enamelled steel and is additionally protected against corrosion by a magnesium anode. Thermal insulation made of CFC-free polyurethane foam reduces standby heat losses.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eEveryday Benefits\u003c\/h2\u003e \u003cp\u003eWater heating is primarily carried out with directly available solar power. The mains auxiliary heating only takes over when the set minimum temperature is not reached. This reduces the share of mains electricity without having to completely do without weather-independent hot water supply.\u003c\/p\u003e \u003cp\u003eAt maximum PV heating output, the water temperature increases by approximately 16 °C per hour. The 1,500 W mains auxiliary heating achieves a temperature rise of about 43 °C per hour. A storage tank fully heated to 65 °C can provide approximately 72 to 75 liters of hot water at around 34 to 35 °C when mixed with cold water.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eSystem Integration \u0026amp; Compatibility\u003c\/h2\u003e \u003cp\u003eThe photovoltaic modules are connected directly to the hybrid boiler via MC4 connectors. Multiple modules must only be connected in parallel. For the 30-liter model, a photovoltaic output of 300 to 600 Wp is recommended; up to 2,000 Wp can be connected. The maximum open-circuit voltage must not exceed 42.4 V DC.\u003c\/p\u003e \u003cp\u003eThe hybrid boiler can also be operated exclusively with photovoltaic power. For automatic grid-based auxiliary heating, the existing 230 V connection is connected to a suitable socket. Photovoltaic modules, parallel connectors, extension cables, and mounting systems must be selected separately.\u003c\/p\u003e \u003c\/div\u003e \u003cstyle\u003e .product-th{margin-top:2rem}.product-th h2{margin:0 0 1rem}.product-th__table{width:100%;border-collapse:separate;border-spacing:0}.product-th__table td{padding:.95rem 1rem;vertical-align:top}.product-th__label{font-weight:700;width:38%;color:#213670}.product-th__value{color:#1f2937}.product-th__table tr:nth-child(odd) td{background:#f4f7fb}.product-th__table tr:nth-child(even) td{background:#fafbfd} \u003c\/style\u003e \u003cdiv class=\"product-th\"\u003e \u003ch2\u003eTechnical Data at a Glance\u003c\/h2\u003e \u003ctable class=\"product-th__table\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eStorage Type\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003ePressure-resistant solar electric wall-mounted storage tank\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eUsable Capacity\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e29 liters\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eSuitable for drinking water\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eYes\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eStorage tank\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eSteel with enamel coating\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eHeat exchanger\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eNone\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eInsulation\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eCFC-free rigid polyurethane foam\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eMaximum water temperature\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e65 °C\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eMaximum operating pressure\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e7 bar\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eDimensions\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eHeight 600 mm, width 400 mm, depth 400 mm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eWeight\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e15 kg\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eMounting\u003c\/h2\u003e \u003cp\u003eThe PVB-30-AC is intended exclusively for vertical, fixed wall mounting in a dry and frost-free room. The wall and mounting elements must be designed for at least three times the weight of the device when filled with water.\u003c\/p\u003e \u003cp\u003eThe combined check and pressure relief valve must be installed at the cold water connection. The supply pressure should be between 1 and 5 bar. If the line pressure is higher, a suitable pressure reducing valve is required.\u003c\/p\u003e \u003cp\u003eBefore connecting the photovoltaic modules or the 230 V mains supply, the tank must be completely filled with water, vented, and checked for leaks.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eNotes\u003c\/h2\u003e \u003cp\u003ePhotovoltaic modules may only be connected in parallel. A series connection can exceed the permissible input voltage and damage the hybrid boiler.\u003c\/p\u003e \u003cp\u003eDuring water heating, expansion water may escape from the pressure relief valve. The side valve opening must remain permanently open and be drained via a suitable drain option.\u003c\/p\u003e \u003cp\u003eThe magnesium anode is a wear part and must be checked regularly. In addition, if the water is hard, the storage tank must be checked and descaled on a regular basis.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eScope of delivery\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e1 x fothermo solar hybrid boiler PVB-30-AC\u003c\/li\u003e \u003cli\u003e1 x combined check and pressure relief valve\u003c\/li\u003e \u003cli\u003e1 x manufacturer\u0026#39;s operating instructions\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e","brand":"Fothermo","offers":[{"title":"Numatytasis pavadinimas","offer_id":58465079001436,"sku":"FHBB30","price":621.25,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/7796\/6428\/files\/fothermo_PVB_30_AC_freigestellt_300dpi.webp?v=1785302584","url":"https:\/\/lt.gemashop.de\/en\/products\/solar-hybrid-boiler-fothermo-pvb-30-ac-30-liter","provider":"GEMA Shop","version":"1.0","type":"link"}