ᐅ What installation spacing should be used for radiant floor cooling?

Created on: 19 Jan 2024 18:27
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SandyBlack
Hello,

I am interested to know if any of you are using underfloor heating with a cooling function and have a pipe spacing greater than 10cm (5 inches).
What has your experience been like?
What pipe spacing do you typically use?

I would appreciate your comments.

Best regards
R
RotorMotor
27 Jan 2024 12:20
Why are you only asking these questions now, after everything has already been ordered? And if you can’t or don’t want to make any changes with your construction company anyway, then it’s basically irrelevant, isn’t it?
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SandyBlack
27 Jan 2024 12:28
I’m only asking these questions now because I have just received all the information.
I also never said that I don’t want to make any changes.
I just need something concrete.
If I simply say I want the buffer in series and he refers to Vaillant, and I can’t prove him wrong, I just can’t make any progress.
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Daniel-Sp
27 Jan 2024 13:28
Then try searching the internet for Vaillant and hydraulic diagram. I found results quickly. They also have hydraulic diagrams without a separation buffer. You just need to check whether these are approved for your heat pump. And I wouldn’t overestimate cooling with an air-to-water heat pump; shading is more important.
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Hausbau55EE
27 Jan 2024 15:07
SandyBlack schrieb:

I’m only asking these questions now because I’ve just received all the necessary information.
I also never said that I don’t want to make any changes.
I just need something concrete.
If I simply say that I want the buffer in series and he refers to Vaillant, and I can’t prove him otherwise, I just can’t move forward.

Are you confident that your potential questions to the general contractor, combined with your technical knowledge, will lead to any response from the contractor? Your current approach shows little weight behind the desired changes to the installation of the heating system.
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SandyBlack
7 Feb 2024 14:55
We had a meeting today with the general contractor.
He explained why they generally plan to use separation buffers when the cooling function is in use.
The main reason is that this provides increased comfort during transitional periods—essentially the beginning and end of summer—because additional cooling mass is available when all circuits are closed.
Afterwards, we explained why we prefer to integrate it as a series buffer.
He understood our reasoning and will now implement it that way for us.
Thanks again for pointing this out.