Considering the purchase of a Vitovalor?

The Vitovalor is one of the most innovative heating appliances currently on the market. It stands out on account of its high efficiency and makes users considerably more independent of electricity price rises. Certain conditions must be met for commissioning: 

  • Gas quality: natural gas 
  • Return temperature: < 50 degrees Celsius
  • Installation height: < 1000 metres above sea level
  • Minimum temperature in the installation room: > 3 degrees Celsius  
A couple, calculating the costs involved in updating their heating system

Conditions for purchasing a Vitovalor 

The Vitovalor is designed for power-optimised operation with the longest possible runtimes. Together with a gas condensing boiler, a total heating output of 20 kW is available (up to 30 kW for DHW heating). The ideal installation locations for the Vitovalor are well insulated detached and two-family houses with a low heat demand, such as new build and modernised existing buildings. The fuel cell heating appliance works particularly efficiently when the return temperatures are very low – ideally with an underfloor heating system. Efficient operation with radiators that have a maximum return temperature of 50 degrees Celsius is also possible.

Technical requirements 

A gas connection is required to operate the Vitovalor. Hydrogen, the actual fuel for the Vitovalor, is obtained from gas in a conversion process. You can find detailed information about this process by clicking on How the Vitovalor works. If no gas connection is currently installed, this could be arranged retrospectively. Ask your local supplier whether this would be possible.    

The electrical connection is made via a 3-core power cable. If you intend to operate the Vitovalor with a photovoltaic system or another energy system, ensure that the electricity meter is set up correctly. If it is set up incorrectly, this would result in false statistical data from the energy manager. In addition, bills from the local energy supplier would not be accurate. 

Space requirements for the Vitovalor 

The Vitovalor consists of two units: the fuel cell developed by Panasonic and the gas condensing module from Viessmann. The two units can be transported separately, or sited freely in the room. As a compact heating appliance, Vitovalor requires a footprint of less than 0.7 square metres. The minimum required room height is 2000 centimetres. If the units are installed side by side, they take up a width of 1060 centimetres.   

Have more questions? 

Buying a Vitovalor

What you should bring to the consultation

Every house has its own heat demand. Efficient operation is only possible when the output of the fuel cell heating appliance exactly matches this heat demand. If you have a heat load calculation, you should therefore bring it with you to the consultation. It contains all the important information about the property required for correctly sizing the heating system. Further information about the existing heating system, such as the year of manufacture, output and consumption, make the search process much easier and should also be provided wherever possible.