ᐅ Underfloor Heating Contamination?

Created on: 27 May 2020 13:54
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Thorsten987
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Thorsten987
27 May 2020 13:54
Hello lying community,
I have a question about underfloor heating. We moved into our newly built house (Viebrockhaus) about 6 months ago. We have had problems with the heating system from the very beginning, and I am trying to resolve this with Viebrockhaus, but I am not satisfied with their response. Initially, the display on the underfloor heating system was clear. Over time, the content inside the underfloor heating system has become significantly darker. So far, I have not found any similar images online. Viebrockhaus says that this is completely normal, of course. Can anyone provide some insight on this? In my opinion, it shouldn’t be like this, right?

Thank you in advance.

Two flow meters with red caps on a metal pipe; scale shows L/min.
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danixf
27 May 2020 14:02
Google underfloor heating flow meter brown/discolored. You will find useful information there. It can have many causes. Impossible to determine from here.
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nordanney
27 May 2020 14:03
It seems someone simply filled the pipes with tap water. The correct procedure is to use demineralized water and flush the system beforehand.
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Thorsten987
27 May 2020 14:17
Hello Nordanney,
yes, that’s correct. During the construction phase, we had a faulty pipe connected to one of the heating circuit manifolds. Shortly before moving in, a plumber who was commissioned by Viebrockhaus was on site and, since the system was probably not properly vented (the shut-off valves were closed), connected a hose to our water supply and filled the system.
If I understand you correctly, this is not the proper procedure. Could this cause any issues with the underfloor heating? Since the water used was not fully desalinated.
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nordanney
27 May 2020 14:42
Thorsten987 schrieb:

If I understand you correctly, this is not the proper installation. Could this then cause any problems with the underfloor heating? Since the water is not fully demineralized.
I can’t assess whether this comes from minerals, salts, algae, or something else. Nor can I say if it will cause problems eventually. I am too much of an amateur myself and don’t know what’s flowing through your pipes. BUT: This definitely needs to be fixed. Don’t let anyone tell you “it’s not a big deal.”
Mycraft27 May 2020 16:24
Flush the system and refill it with deionized water. The water will always become somewhat darker, simply due to the pumps.