We enable every household to use a renewable and cost-effective hot water supply using photovoltaic electricity in order to make a significant contribution to limiting the global temperature increase to a maximum of 1.5 °C.
![](http://fothermo.com/cdn/shop/files/fothermo_Production_01_2048x1044_crop_center.png?v=1705403425)
fothermo is the leading manufacturer of photovoltaic boilers and heating elements.
![](http://fothermo.com/cdn/shop/files/fothermo_Production_02_2048x1040_crop_center.png?v=1705403425)
fothermo is the leading manufacturer of photovoltaic boilers and heating elements.
![](http://fothermo.com/cdn/shop/files/fothermo_Production_03_2048x1027_crop_center.png?v=1705403347)
fothermo is the leading manufacturer of photovoltaic boilers and heating elements.
![](http://fothermo.com/cdn/shop/files/fothermo_Anwendung_Installation_80L_Photovoltaikboiler_Erfahrung_1_2048x1152_crop_center.jpg?v=1708682299)
How it all began
fothermo was born in 2020 from a vision of a group of photovoltaic engineers. Amid the global shift to renewable energy, we are paving the way into the future with industry-leading photovoltaic heaters and boilers combined with intelligent surplus feed-in via a micro-PV inverter.
Why fothermo?
By using up to 100% photovoltaic energy to generate hot water.
Excess photovoltaic energy can be fed into your own home network via a micro PV inverter.
fothermo is the first manufacturer of photovoltaic boilers.
Easy installation thanks to the self-explanatory plug-in system for all components.
Connection and commissioning possible without an electrician, as the entire system works in protective extra-low voltage.
99% efficiency thanks to the patented MPP tracker ensures up to 50% higher photovoltaic yield compared to a boiler without an MPP tracker.
![](http://fothermo.com/cdn/shop/files/fothermo_Set_Uebersicht_About_US_1948x608_crop_center.png?v=1705403974)
Hot water for everyone
We are committed to a sustainable and secure energy future. All of our products are characterized by very high cost-effectiveness and easy commissioning. The fothermo products enable you to shape your own energy transition and save money at the same time.
![](http://fothermo.com/cdn/shop/files/Praesentation21_2048x512.jpg?v=1708682678)