The solar boilers from fothermo have paid for themselves after about 4 years. Let's find out the reason together and see the results for ourselves.
Simplified profitability calculation - solar boiler:
A 2-3 person household with a normal electric boiler for hot water needs around 900 kWh - 1400 kWh of electricity per year. At an electricity price of €0.32/kWh, the annual electricity costs amount to €288 to €448.
Experience shows that an 80-litre solar hybrid boiler from fothermo saves around 75% of hot water costs over the course of a year. This is the feedback from thousands of solar boiler users across
Germany.
Thus, the annual savings with the solar boiler are between €216 and €336.
The investment costs for the solar boiler + solar modules are around €1,200. This results in a short payback period of 3.5 to 5.5 years.
