ᐅ Cooling with a heat pump through underfloor heating?

Mycraft schrieb:

Well, there are no problems with air conditioning. System on = cold…end of story. So I don’t understand the objection. On the other hand, there are problems with cooling via underfloor heating since it is rather minimal in effect, so posts in such a thread should usually lean that way.

Huh? The point is that this thread is not the right place to discuss the design and sizing of the air conditioning system.
I have absolutely no problem with negative EXPERIENCE reports dominating a thread.

But I also wouldn’t go into a Dacia forum and write in every thread that people should just buy a Mercedes instead. Because I have one and I’m happy with it. “I’ve never actually been in a Dacia, but never mind! It can only be rubbish. And now let’s please only talk about Mercedes here in the forum!”

Right, no one here is discussing the design and sizing of air conditioning systems, so all is well.

I’m not going to take the trouble to find all the posts in this thread for you where the question was answered about which air conditioning system was installed, how the open-door solution could be implemented best, whether an outdoor unit makes more sense, and where it could be positioned.

And last but not least, how to best handle the ceiling outlet for the air conditioning—whether to lower the ceiling or not.

Actually, it’s quite obvious.

We have been using a ground source heat pump with passive cooling for one year now and find it excellent. I can confirm the mentioned 3°C (5°F) difference; of course, shading is still necessary, otherwise the heat gain is simply too high. The cool floor doesn’t bother us at all; on the contrary, it is quite pleasant during intense summer heat. With tile flooring, the effect is more noticeable, while in rooms with laminate flooring, it is hard to reliably feel the difference in floor temperature when the cooling is on or off.

The biggest advantage, however, is the low electricity consumption, as only two circulation pumps need to run.

We are still looking for a solution to one problem. Since the heating circuits are adjusted according to hydraulic balancing, the required flow reverses during cooling. The bedroom has the lowest heating demand but the highest cooling demand. This means adjusting the flow rates twice a year. Are there control valves available that can hold intermediate positions? The house is equipped with KNX.

Fuchur schrieb:

We have had a ground source heat pump with passive cooling running for 1 year now and are very satisfied. I can confirm the mentioned 3°C (5.4°F) difference,

How deep?
How many pipes?

(sorry if this is a bit off-topic)

130m (430 feet) in one borehole (heated area 228m² (2,454 sq ft), of which 39m² (420 sq ft) in the basement used only as needed).