Use geothermal energy without underfloor heating

Hello dear forum!

I would like to use geothermal energy as a source of energy, but I am not a big fan of underfloor heating. Is it absolutely necessary to install underfloor heating in order to use geothermal energy, or is it also possible with regular radiators?

The idea behind the use of heat pumps is to combine the lowest possible supply temperature (26°C is already sufficient) with a large heat exchanger surface. Then the (well insulated) house stays warm even under unfavorable climatic conditions for the heat pump.

Large surface heat exchangers are also wall surface heaters; they work just like underfloor heating, but are installed in the walls.

Regular radiators require a relatively high supply temperature to heat a house; high temperature > small exchanger surface - low temperature > large exchanger surface.

You can easily use a ground probe heat pump with radiators. The efficiency is certainly somewhat lower compared to a system with [FHB], but still good. The crucial thing is that the system is properly designed and hydraulically correctly integrated. Get advice from a heat pump professional, then it will work.

The crucial thing is that the system is cleanly designed and hydraulically correctly integrated.

That is true, and I can only agree with my predecessor. This cannot be done alone; a professional is needed here, and they usually manage it well.

That is correct, this also works with radiators. The heating system must function well and for the upcoming winter season, the flow temperature should be limited to a maximum of 40-45°C. Remove the night setback and turn all radiators fully on. Once the house is warm, a heat pump can be considered. It is important to obtain the current offers.

Yes, that is also possible without underfloor heating, but special radiators must be installed for this. They need to be designed for heat pump operation. Although this is not optimal, it works. In this case, consult a heating engineer who can also calculate the heating load.