ᐅ The children's bedroom is too warm in the new build.

Created on: 1 Nov 2019 21:59
A
AD1988
Hello everyone,

We have finally been living in our newly built house for two weeks now. We have underfloor heating throughout the entire house and a digital thermostat in every room. All thermostats are set to 21 degrees Celsius (70°F) throughout the house, and everything works fine overall. As soon as the thermostats reach 22 degrees Celsius (72°F), they switch off—except in the children’s room. There, we have noticed that the temperature easily rises to 23 degrees Celsius (73°F) overnight, and the floor remains constantly warm compared to the other rooms.

I have already contacted the company that installed everything for us, but it will probably take some time before I receive a response. As a curious person, I would really like to understand what could be causing this or what the reason might be.

Best regards
A
AD1988
13 Nov 2019 09:06
Yesterday, I had to raise the heating curve to 0.5 because my wife complained that the house was not getting warm enough. At the current temperatures, this means a flow temperature of about 32°C (90°F).

Do I understand correctly that, theoretically, I could increase the flow temperature up to 40°C (104°F)? It is currently limited to 35°C (95°F).
Mycraft13 Nov 2019 09:18
Wait for 1-2 days first to let the house settle again.

Although it doesn’t really provide much information, at the current temperatures I also have about 33°C (91°F) flow temperature and 20°C (68°F) in one of the children's rooms.
Temperature progression: outside, room, and flow from Nov 6–13; flow 33.44.
A
AD1988
13 Nov 2019 09:20
I found an old picture from the living room showing part of the installation. The spacing does not seem as close as it should be.

Underfloor heating pipes laid spirally on insulation in an empty room.
N
nordanney
13 Nov 2019 09:25
AD1988 schrieb:

The gap is probably not as small as it should be.
Looks like someone skimped on the pipes...
M
Malz1902
13 Nov 2019 09:30
@AD1988 What type of heat pump do you have?
Mycraft13 Nov 2019 09:36
Well, 20cm (8 inches) is absolutely common. Not ideal for low flow temperatures, but definitely not wrong or incorrect. It still allows you to achieve the desired temperatures.