Hello everyone,
We have now been living in our house for six months (KfW 55 standard, although the heating demand is closer to KfW 40) and are really impressed with the indoor climate and comfort provided by the underfloor heating (operated by an air-to-water heat pump). The underfloor heating works flawlessly for us and seems well adjusted, at least the energy consumption is reasonable and the indoor temperatures are almost always comfortable. We don’t have a central or decentralized ventilation system; we ventilate traditionally by opening windows. So far, so good.
The only "problem" is the bedroom (about 17sqm (183 sq ft)): it faces northwest and is not directly heated (the flow temperature is set to zero), because even with the door closed it already gets “too warm.” The temperature in the house is around 21–22°C (70–72°F), which is our preferred indoor temperature. However, in the bedroom, we would like only 16–17°C (61–63°F), since 20°C (68°F) makes the bedding unnecessary 😀 But we simply cannot achieve this… Usually, we ventilate by opening windows crosswise for about an hour before going to bed, which lowers the temperature to around 13–14°C (55–57°F) — actually already too cold — but it quickly rises again and reaches nearly 20°C (68°F) in the morning. This causes waking up at night sweating and almost not needing the blanket. Not very restful… 🤨
Sleeping with the windows open is unfortunately not an option since we need complete darkness and absolute quiet.
How do you handle this? Is it something you just have to accept in extremely well-insulated houses, or how do you get the bedroom cooler? I can’t imagine all new-build homeowners comfortably sleeping at 20°C (68°F), as this doesn’t match the general recommendation for the [oB]optimal sleep temperature[/oB] for adults, which is between 15°C and 18°C (59–64°F).
Thanks in advance!
We have now been living in our house for six months (KfW 55 standard, although the heating demand is closer to KfW 40) and are really impressed with the indoor climate and comfort provided by the underfloor heating (operated by an air-to-water heat pump). The underfloor heating works flawlessly for us and seems well adjusted, at least the energy consumption is reasonable and the indoor temperatures are almost always comfortable. We don’t have a central or decentralized ventilation system; we ventilate traditionally by opening windows. So far, so good.
The only "problem" is the bedroom (about 17sqm (183 sq ft)): it faces northwest and is not directly heated (the flow temperature is set to zero), because even with the door closed it already gets “too warm.” The temperature in the house is around 21–22°C (70–72°F), which is our preferred indoor temperature. However, in the bedroom, we would like only 16–17°C (61–63°F), since 20°C (68°F) makes the bedding unnecessary 😀 But we simply cannot achieve this… Usually, we ventilate by opening windows crosswise for about an hour before going to bed, which lowers the temperature to around 13–14°C (55–57°F) — actually already too cold — but it quickly rises again and reaches nearly 20°C (68°F) in the morning. This causes waking up at night sweating and almost not needing the blanket. Not very restful… 🤨
Sleeping with the windows open is unfortunately not an option since we need complete darkness and absolute quiet.
How do you handle this? Is it something you just have to accept in extremely well-insulated houses, or how do you get the bedroom cooler? I can’t imagine all new-build homeowners comfortably sleeping at 20°C (68°F), as this doesn’t match the general recommendation for the [oB]optimal sleep temperature[/oB] for adults, which is between 15°C and 18°C (59–64°F).
Thanks in advance!
halmi schrieb:
Your tacos look pretty bad after 6 months.. May I ask what is meant by this? I’m a bit confused :-(
T
T_im_Norden16 Jan 2021 07:51The discoloration of the clear glass panels: do you have a towel radiator included in the heating circuit?
bauenmk202016 Jan 2021 08:39It might be possible to reduce the circulation pump speed at night (to level 1 or, if stepless, to about 50%) so that there is less flow to the upper floor. Of course, this needs to be configurable in the control system. The downside would be that the entire upper floor would then have lower "pressure" and, as a result, less heat delivery (e.g., to the bathroom).
Alternatively, it would also be possible to add an extra drywall partition on the bedroom's interior walls. This can help reduce heat loss from the adjacent rooms and, if needed, improve sound insulation as well.
Alternatively, it would also be possible to add an extra drywall partition on the bedroom's interior walls. This can help reduce heat loss from the adjacent rooms and, if needed, improve sound insulation as well.
It’s simply the case that temperatures inside the house balance out. The houses are very well insulated, so the surrounding rooms help warm the bedroom. Otherwise, you would eventually have the target temperature in the bedroom.
I guess I’m different from most people here. Even in summer, I need something cozy, and at 20°C (68°F) in the bedroom, I feel completely comfortable with a regular blanket. It could actually be thicker. I mean the blanket. Not me 🙂
I guess I’m different from most people here. Even in summer, I need something cozy, and at 20°C (68°F) in the bedroom, I feel completely comfortable with a regular blanket. It could actually be thicker. I mean the blanket. Not me 🙂
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