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
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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.
P
pffreestyler22 Jan 2020 09:44Without the outside temperatures, the comparisons are even less helpful, right? One person experiences a constant -5°C (23°F) while another has a steady +8°C (46°F), and just like that, all the information becomes useless.
D
Daniel-Sp22 Jan 2020 09:52The amount of heat generated is also missing...
chewbacca12322 Jan 2020 10:02halmi schrieb:
The last two days we have had persistent frost, with nighttime temperatures of -7°C (19°F) and -5°C (23°F).Same here!P
pffreestyler22 Jan 2020 10:56Are there comparisons like this for gas as well? Somehow, I only ever see comparisons for heat pumps. I’m curious to know where we stand with about 3-4 m³ (c. 106-141 ft³) per day at temperatures between 4 and 7 degrees Celsius (39-45°F) for a 160 m² (1,722 ft²) space (100 m² (1,076 ft²) at around 20.5°C (69°F) and 60 m² (646 ft²) at 17°C (63°F)). Domestic hot water at 46°C (115°F). 1 m³ (35 ft³) is about 11 kWh.