Fothermo Hybrid Photovoltaic Boiler 80 liters

With the 80L hybrid water boiler from Fothermo (MPN PVB-80-AC), you can generate your hot water using sustainable and cost-effective solar power. The solar modules can be connected in a matter of seconds using plug-and-play technology, providing you with a reliable hot water supply. Unlike the other 80-liter Fothermo off-grid boiler, the hybrid version can be reheated via the 230V power grid. Due to the low voltage level of less than 50V, no electrician is required for installation

Product highlights

• 80-liter photovoltaic hybrid boiler
• Hot water for the sink, shower, or kitchen
• No connection to the power grid required
• Innovative MPP tracker
• Complete system with MC4 PV connections
• No specialist required for installation
• Digital temperature display
• 1/2" water connection on the water heater
• Plug and play

The boilers operate at a power of up to 1500W. If desired, there is also the option of reheating via the existing heating system. Installation is straightforward, similar to conventional floor-standing storage tanks. A vacuum and check valve are also included in the scope of delivery to ensure maximum safety.

1500W reheating

The Fothermo Hybrid Boiler offers an intelligent solution for situations where solar energy is insufficient to heat the water for a longer period of time. the 230 V reheating system with an adjustable control knob allows you to set a minimum temperature, e.g., 35°C. If the water temperature falls below this value, the boiler is automatically reheated with 1,500 W of power from the mains until the minimum temperature is reached again. The boiler has a maximum water temperature of 65°C and, when fully heated, can provide approximately 72 liters of 34°C hot water for showers (for a 30-liter boiler) or 180 liters for the 80-liter boiler.

Integrated MPP tracker

The innovative MPP tracker increases the yield of your photovoltaic system by up to 50% by always ensuring the optimal operating point of the connected PV modules.

Technical data

• Volume: 77 liters
• Nominal pressure: 0.7MPa
• max. heating power: 550W
• max. current: 15.5A
• Protection class: IP 24
• Dimensions: 470 x 480 x 900 mm
• Weight: 25 kg

Photovoltaic connection

• Max. photovoltaic heating power: 550W
• Max. photovoltaic current consumption: 15.5A
• Max. water temperature: 65°C
• Integrated MPP tracker
• Recommended photovoltaic power: 300 - 600Wp
• Max. connectable photovoltaic power: 2000Wp
• Max. open-circuit voltage: 42.4V
• Connection plug: MC4

Caution: The open-circuit voltage of the solar modules must not exceed 42.4V. When using multiple modules, they must be connected in parallel, not in series!

Scope of delivery:

1x Fothermo 80 liter hybrid hot water boiler (PVB-80-AC)
1x Return and pressure relief valve