ᐅ New Construction Underfloor Heating System with Heat Pump is Losing Pressure
Created on: 19 Aug 2021 12:36
I
immermehr
Hello everyone,
I noticed a few weeks ago that the underfloor heating system is losing pressure. The first sign was the heat pump (HSPE Daikin) showing errors. Afterwards, I saw that the water pressure in the boiler dropped below 2 bar. After consulting with the heating technician, I topped up the water and increased the pressure to 2.7 bar. After about 6 weeks, it has dropped back to around 2 bar.
This means the underfloor heating loses about 0.1 bar each week.
Question:
Is this normal?
In summer, the underfloor heating probably isn’t running. Could this be related? Should I expect a leak?
Thank you for your answers.
I noticed a few weeks ago that the underfloor heating system is losing pressure. The first sign was the heat pump (HSPE Daikin) showing errors. Afterwards, I saw that the water pressure in the boiler dropped below 2 bar. After consulting with the heating technician, I topped up the water and increased the pressure to 2.7 bar. After about 6 weeks, it has dropped back to around 2 bar.
This means the underfloor heating loses about 0.1 bar each week.
Question:
Is this normal?
In summer, the underfloor heating probably isn’t running. Could this be related? Should I expect a leak?
Thank you for your answers.
I
immermehr25 Feb 2022 21:02Hello everyone,
today (after 6 months) the pressure is back to 1.4 bar. I need to refill water again today. This time I only topped it up to 2 bar.
That means my underfloor heating loses about 0.1 bar every month.
The heating technician said this is normal. Approximately 4 liters (1 gallon) of water have leaked out in total through safety valves (from the tank, underfloor heating, etc.).
Question:
- Is this normal?
- How often do you have to refill water in your underfloor heating system?
THANK YOU for your answers and I wish you a nice weekend.
today (after 6 months) the pressure is back to 1.4 bar. I need to refill water again today. This time I only topped it up to 2 bar.
That means my underfloor heating loses about 0.1 bar every month.
The heating technician said this is normal. Approximately 4 liters (1 gallon) of water have leaked out in total through safety valves (from the tank, underfloor heating, etc.).
Question:
- Is this normal?
- How often do you have to refill water in your underfloor heating system?
THANK YOU for your answers and I wish you a nice weekend.
immermehr schrieb:
Approximately 4 liters (about 1 gallon) of water leaked out in total from the safety valves (from the tank, underfloor heating...) What exactly?
Please clarify. Where is the water leaking from?
B
Benutzer20025 Feb 2022 22:44immermehr schrieb:
About safety valves (from the tank, underfloor heating...) approximately 4 liters (about 1 gallon) of water have leaked out in total These should be emergency SAFETY valves. Regular dripping = poor planning / workmanship / faulty execution.
immermehr schrieb:
How often do you need to top up water in your underfloor heating system? Once in the last 10 months – but that was because I had to bleed it twice after initial commissioning. Otherwise, no topping up needed. Pressure remains stable at 1.5 bar (22 psi).
schubert7926 Feb 2022 06:44I have never refilled it.
F
fach1werk27 Feb 2022 00:46Remember to send it by registered mail with a deadline. In our case, no one came to check the electrical installation either.
Best regards, Gabriele
Best regards, Gabriele
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