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
12 Nov 2019 15:34
nordanney schrieb:

I don’t know how long your visits to the guest bathroom usually are, but I think 21°C (70°F) is warm enough and wouldn’t worry about that room.
But is it really energy-efficient if the valve is on all the time and it doesn’t even reach 21°C (70°F) there at times?
B
boxandroof
12 Nov 2019 15:38
Yes, you might have a short circuit in the loop if it is very short. Adding some resistance certainly won’t hurt; the temperature in the room should hardly be affected. Otherwise, if you are okay with the temperature, consider the room as "secondary." It will get as warm as it does.

The alternative would be to increase the supply temperature just because of this room. The surrounding rooms or all rooms should generally be heated since heat naturally moves from one room to another.
J
Joedreck
12 Nov 2019 15:49
First, check if the circuit is fully open.
A short circuit in the gas heating system is not too critical since the flow temperature is already low.

If the circuit is already completely open, still reduce the flow temperature further and see how low it can go. I believe there is still some potential.
And the flow rate is truly important; otherwise, the gas heater won’t be able to dissipate the heat properly and will short-cycle.

We will do this together step by step.
A
AD1988
12 Nov 2019 16:07
Joedreck schrieb:

First, check if the circuit is fully open.
A short circuit in the gas heating system is not that serious since the flow temperature is already low.

If the circuit is fully open, still lower the flow temperature again and see how low it can go. I believe there is room for further reduction.
And the flow rate is really important; otherwise, the gas heater won’t be able to dissipate the heat properly and will cycle on and off.

We’ll work through this step by step together.

That’s very kind of you, and I’m really grateful for all the information you’ve shared.
However, I think the flow temperature can’t be lowered further because a minimum temperature of 25 degrees Celsius (77°F) is set.
J
Joedreck
12 Nov 2019 16:26
What is the current supply temperature?
You can comfortably approach 25 degrees Celsius (77°F) at the current temperatures. Nothing serious will happen. Polar bears won’t suddenly show up at your place overnight.
A
AD1988
12 Nov 2019 16:28
After I set the heating curve to 0.4 yesterday, the flow temperature fluctuates between 26 and 28 degrees Celsius (79 and 82 degrees Fahrenheit). According to the graph, it should be 30 degrees Celsius (86 degrees Fahrenheit).