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
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
That hasn’t been fully clarified yet. And it doesn’t need to be optimized down to the thousandth.
It’s a gas boiler, so not every degree makes a crucial difference.
Edit: just read the other posts now. Well, it does need to be comfortable, of course.
In my older building, with moderately insulated walls and some windows from 1992, I had a supply temperature of 35°C (95°F) this morning with an outside temperature of 2°C (36°F). The room temperature was 22°C (72°F) everywhere.
It’s a gas boiler, so not every degree makes a crucial difference.
Edit: just read the other posts now. Well, it does need to be comfortable, of course.
In my older building, with moderately insulated walls and some windows from 1992, I had a supply temperature of 35°C (95°F) this morning with an outside temperature of 2°C (36°F). The room temperature was 22°C (72°F) everywhere.
B
boxandroof13 Nov 2019 10:15You’re on the right track. Just a quick note:
I’m not familiar with Vaillant settings, but the 0.5 value usually represents the slope, meaning how strongly the system responds to the outdoor temperature. You can also shift the heating curve up or down without changing the slope.
If it’s too cold inside at 10°C (50°F) outside, you should first increase the minimum temperature instead of the slope. Otherwise, it might get too warm when it’s colder outside. If you haven’t done so already, it’s best to study the manual for this.
Here is my take on your settings:
Start: 25°C (77°F)
End: 35°C (95°F)
Slope: 0.5
AD1988 schrieb:
Yesterday I had to raise the heating curve to 0.5 because my wife complained that the house wasn’t getting warm enough. With the current temperatures, that means a flow temperature of about 32°C (90°F).
I’m not familiar with Vaillant settings, but the 0.5 value usually represents the slope, meaning how strongly the system responds to the outdoor temperature. You can also shift the heating curve up or down without changing the slope.
If it’s too cold inside at 10°C (50°F) outside, you should first increase the minimum temperature instead of the slope. Otherwise, it might get too warm when it’s colder outside. If you haven’t done so already, it’s best to study the manual for this.
Here is my take on your settings:
Start: 25°C (77°F)
End: 35°C (95°F)
Slope: 0.5
I have one more question. Currently, the maximum supply temperature is limited to 35°C (95°F). With the large pipe spacing, I could imagine that this might be insufficient when the outside temperature drops to around -10°C (14°F).
Should the supply temperature never exceed 35°C (95°F), or is it allowed to be set a bit higher?
I’m asking because right now the supply temperature is about 32°C (90°F). The living room is kept at 22°C (72°F) all day, but the thermostat only turns off at 22.1°C (72°F). This means the system circulates continuously throughout the day. Is this okay?
If so, it would mean I couldn’t heat any warmer via the thermostat even if I wanted to.
Should the supply temperature never exceed 35°C (95°F), or is it allowed to be set a bit higher?
I’m asking because right now the supply temperature is about 32°C (90°F). The living room is kept at 22°C (72°F) all day, but the thermostat only turns off at 22.1°C (72°F). This means the system circulates continuously throughout the day. Is this okay?
If so, it would mean I couldn’t heat any warmer via the thermostat even if I wanted to.
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