Hello,
we moved into our new build exactly one year ago. We have a KFW55-level house with a ground source heat pump, triple glazing, a ventilation system, and, of course, underfloor heating. We are very satisfied with the house, but there is one thing that bothers me: the temperature in the bedrooms. It is always between 20 and 22 degrees Celsius (68 and 72°F) even though we don’t heat those rooms. On one hand, I find it too warm and would prefer it cooler; on the other hand, I am curious about the cause of this temperature. Of course, we could sleep with the windows open, which we do quite often, but I’m not really happy with that solution.
The thermostat in the room is set to 0 degrees Celsius (32°F). Even the valves for the bedrooms are completely turned off. Only the bathroom on the first floor is heated. However, the bedroom floor feels noticeably warm in some areas. We have contacted the plumbing company, and they confirmed that the valves are closed and said it shouldn’t be happening… but I just have the feeling that the room is still being heated. What do you think? Could it be that the room is just warmed by the heat from the living areas below (kitchen/dining and living room)?
Do you have any ideas what might be causing this? Or is it simply normal in such a setup, where the room below is heated and the house is well insulated, for the bedrooms to be warmer than “before”?
Thank you very much for your suggestions!
we moved into our new build exactly one year ago. We have a KFW55-level house with a ground source heat pump, triple glazing, a ventilation system, and, of course, underfloor heating. We are very satisfied with the house, but there is one thing that bothers me: the temperature in the bedrooms. It is always between 20 and 22 degrees Celsius (68 and 72°F) even though we don’t heat those rooms. On one hand, I find it too warm and would prefer it cooler; on the other hand, I am curious about the cause of this temperature. Of course, we could sleep with the windows open, which we do quite often, but I’m not really happy with that solution.
The thermostat in the room is set to 0 degrees Celsius (32°F). Even the valves for the bedrooms are completely turned off. Only the bathroom on the first floor is heated. However, the bedroom floor feels noticeably warm in some areas. We have contacted the plumbing company, and they confirmed that the valves are closed and said it shouldn’t be happening… but I just have the feeling that the room is still being heated. What do you think? Could it be that the room is just warmed by the heat from the living areas below (kitchen/dining and living room)?
Do you have any ideas what might be causing this? Or is it simply normal in such a setup, where the room below is heated and the house is well insulated, for the bedrooms to be warmer than “before”?
Thank you very much for your suggestions!
The solution of closing all heating circuits on the upper floor and only opening the radiator in the bathroom is simply wrong. Strangely, no one points this out; instead, people keep focusing on the good KfW55 insulation values.
Open all heating circuits, adjust the heating curve and flow rates, activate the ERR, and turn on the bypass valve. Others can explain this to you better. I have also been working on optimizing my heat pump for 1.5 months now.
Open all heating circuits, adjust the heating curve and flow rates, activate the ERR, and turn on the bypass valve. Others can explain this to you better. I have also been working on optimizing my heat pump for 1.5 months now.