Help - Air heat or geothermal heat?

Thought one uses the coolness and combines it with the ventilation system...

With us, the prices for the drilling were significantly above the "recommendation" of Bafa and LBEG. ST and gas and connection, however, would not have been so much cheaper than the drilling + heat pump.

The controlled residential ventilation moves this much air:



However, to achieve noticeable cooling, this much air must be moved:



Therefore: controlled residential ventilation is unsuitable for cooling purposes... even if the air came out cool from the vents, it would already be warm again by the time it reached objects or people in the house.

Actually, Mycraft has already answered almost everything for me
Thanks again for that, but if other users would like to share their experiences ... just bring on the info

We wanted to clarify the following areas.

- Economic
- Ecological
- Sustainable (durability of the end devices, etc.)
- Heating performance
- Additional costs for air conditioning in summer
(All devices were offered to us with underfloor heating)

With us, the prices for the drilling were significantly above the "recommendation" of Bafa and LBEG.
ST and gas and connection, however, would not have been much cheaper than the drilling + heat pump.

Hi BehaElJa,

thanks for your info, am I correct in assuming that you heat your house with geothermal energy?
If yes, what is your conclusion?

There isn't much conclusion yet. Only since February. Heating is running, consumption is okay. The purchase was a bit stressful because no one really seems to know much about it among the craftsmen from whom we obtained quotes. All specialized in gas...