ᐅ Underfloor heating with an air-to-water heat pump. House gets too warm when the sun is shining.
Created on: 4 Dec 2019 14:18
C
chewbacca123
Hello everyone,
I have a general question.
We moved into our new build four months ago. The living area on the ground floor has three large floor-to-ceiling windows facing south. We have underfloor heating and an air-to-water heat pump.
It provides a really comfortable temperature inside the house, but we have a problem – whenever the sun is shining in winter, even if it’s -2°C (28°F) outside, the temperature suddenly rises to 24°C (75°F) in the living room. It gets uncomfortably warm in here, and the underfloor heating can’t be turned down quickly.
Should we assume that the large floor-to-ceiling windows are responsible for the heat gain? A photo of the south-facing side of the house is attached.
What would you do – always lower all the blinds as soon as sunlight is forecast? That seems quite annoying...
We have motorized blinds controlled by Somfy. Would you consider buying a sensor that automatically lowers the blinds at a certain temperature?
Thanks in advance for your replies.
I have a general question.
We moved into our new build four months ago. The living area on the ground floor has three large floor-to-ceiling windows facing south. We have underfloor heating and an air-to-water heat pump.
It provides a really comfortable temperature inside the house, but we have a problem – whenever the sun is shining in winter, even if it’s -2°C (28°F) outside, the temperature suddenly rises to 24°C (75°F) in the living room. It gets uncomfortably warm in here, and the underfloor heating can’t be turned down quickly.
Should we assume that the large floor-to-ceiling windows are responsible for the heat gain? A photo of the south-facing side of the house is attached.
What would you do – always lower all the blinds as soon as sunlight is forecast? That seems quite annoying...
We have motorized blinds controlled by Somfy. Would you consider buying a sensor that automatically lowers the blinds at a certain temperature?
Thanks in advance for your replies.
D
Daniel-Sp22 Dec 2019 10:20chewbacca123 schrieb:
The hot water hysteresis is set to 6.
Yeah, such a hassle, somehow I don’t dare to touch the overflow valve. Then there won’t be any change regarding heating cycles and electricity consumption.
chewbacca123 schrieb:
Hot water hysteresis is set to 6.
Yeah, such a hassle, somehow I’m afraid to touch the overflow valve. Just turn it off completely and leave it at that. Then you can assess the situation later. If an error occurs, you simply turn it back on. This way, the water will follow the path of least resistance.
chewbacca12322 Dec 2019 11:33Daniel-Sp schrieb:
Then there will be no change regarding heating cycles and electricity consumption.Here is an excerpt from our energy performance certificate; can you make use of this? D
Daniel-Sp22 Dec 2019 11:49No, the required data is not included there.
chewbacca12322 Dec 2019 13:03Daniel-Sp schrieb:
No, the required data is not included there.Too badD
Daniel-Sp22 Dec 2019 19:02chewbacca123 schrieb:
Domestic hot water hysteresis is set to 6. Why do you then have so many domestic hot water cycles? What temperature is your domestic hot water set to? How large is your hot water storage tank? Do you have a circulation system?