2.15 kWp solar system with 200L Fothermo boiler for hot water preparation

The Offgridtec 2.15kW solar system with the 200l Fothermo boiler (MPN 018915) offers a comprehensive solution for your hot water supply. It includes 5 bifacial Luxen solar panels, each with 430Wp, as well as all necessary cables to ensure a smooth installation. The photovoltaic stand boiler features an integrated heat exchanger for environmentally friendly provision of hot water and can be seamlessly connected to existing heating systems.

You can use hot water in the sink, shower, or kitchen without needing to connect to the power grid. The installation of the solar system does not require a professional and can be completed with just a few simple steps.

Components of the Offgridtec 2.15kW Solar System with 200l Fothermo Boiler

• 5x Luxen Solar 430W TopCon Bifacial Solar Panel Full Black Luxneri Series N5
• 1x Fothermo 200 Liter Photovoltaic Boiler
• 2x Offgridtec 2-way junction boxes Y-connector including cable extension (pair)
• 3x Connection cable MC4 to MC4 6mm² 10m red/black

Fothermo Photovoltaic Water Boiler 200 Liters - Hot Water Supplier

The Fothermo 200L water boiler utilizes solar energy for cost-effective and environmentally friendly hot water. With three independently operating photovoltaic heating elements, it delivers hot water quickly and reliably. The 3 MPP trackers and DC heating elements provide a photovoltaic heating capacity of up to 1,800W.

Flexible inlets and outlets allow for individual mounting, including the option for a circulation line. Each boiler is supplied with overpressure and non-return valves. The stand boiler can utilize a total of up to 6000Wp photovoltaic capacity. A direct connection to an existing heating system can be made through the integrated heat exchanger to ensure adequate hot water even on sunny days.

Technical Data Fothermo 200l Water Boiler

• Volume: 200 liters
• Max. heat losses: 47.5W
• Nominal pressure: 0.8 MPa
• Dimensions: 1430 x 600 x 690 mm
• Weight: 74kg
• 3 years manufacturer's warranty
• 3 MPP trackers

Heat Exchanger

• Nominal pressure: 1 MPa
• Max. temperature of heating fluid: 110°C
• Max. temperature in the tank heated by the heat exchanger: 95°C
• Area: 0.90 m²
• Volume: 4.3 liters
• Continuous power according to DIN 4708: 25kW
• Flow rate according to DIN 4708: 10 L/min
• Power according to EN 12897: 18.6kW
• Heating time according to EN 12897: 28.8 Min
• Pressure drop: 120 mbar

Photovoltaic Heating

• Max. current draw: 16A
• Electrical nominal power: 1800W
• Max. connected power: 6000Wp
• Max. connected power per MPPT: 2000Wp
• Max. water temperature: 65°C
• Max. open-circuit voltage: 50V

Supplementary Heating

The boiler can be supplemented in various ways if there is insufficient sunlight. One option is to use an existing pellet, gas, or oil heater, which can be connected via the integrated heat exchanger on the boiler. A temperature sensor in the boiler controls the supplementary heating. Alternatively, an electric heating element with 6/4 inch thread can be installed. The maximum water temperature is 65°C, and a heated 200-liter boiler can supply about 450 liters of water at 34°C.

The Bifacial Luxen Solar 430W Full Black Solar Panel

The monocrystalline and bifacial 430W Full Black solar panel from the Series N5 by Luxen Solar (MPN LNVB-430ND) impresses with a combination of various technologies, such as N-TOPCon cell technology and a 108 half-cell layout. Additionally, the SMBB half-cut cell technology has been applied during production to enhance performance. This state-of-the-art solar panel represents the pinnacle of solar technology, offering impressive performance output and low levelized cost of energy (LCOE).

• N-TOPCon cell technology
• SMBB half-cut cell technology
• Low BOS & LCOE
• Bifacial cell module technology
• Excellent anti-PID and low LID performance
• 3 bypass diodes
• 30 years performance warranty and 15 years product warranty
• High cell efficiency of over 22%

Technical Data

• Maximum power: 430W
• Module voltage (Vmp): 32.04V
• Max. current (Imp): 13.42A
• Open-circuit voltage (Voc): 38.96V
• Short-circuit current (Isc): 14.13A
• Module efficiency: 22.02%
• Dimensions: 1722 x 1134 x 30 mm
• Operating temperature range: -40°C to +85°C
• Cells: 108 (6x18)
• Ingress protection class IP68
• Max. operating voltage: 1500V DC
• Weight: 23.5kg