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.
chewbacca12321 Jan 2020 09:19bortel schrieb:
And where exactly did you see the pressure drop??We have a gauge directly on the system, see the picture.In my utility room, there is a hose specifically for this purpose, and during the handover, I was shown how and where to use it.
Interestingly, and clear in hindsight: first, let the air out of the hose, then fill the system. Otherwise, air from the hose is unnecessarily pushed into the system.
Interestingly, and clear in hindsight: first, let the air out of the hose, then fill the system. Otherwise, air from the hose is unnecessarily pushed into the system.
chewbacca12321 Jan 2020 17:46Slava_S schrieb:
In my technical room, there is a hose installed specifically for this purpose, and during the handover, I was shown how and where to use it.
Interestingly, and clear in hindsight: you first have to let the air out of the hose before filling the system. Otherwise, air from the hose is unnecessarily pushed into the system.We didn’t receive any explanation at all and have no idea if there is a hose anywhere. :-(
chewbacca12322 Jan 2020 08:41Hey everyone, what is your daily electricity consumption for your heat pump?
Of course, it’s cold right now; last night it was -6°C (21°F). But yesterday afternoon, with bright sunshine, it was 5°C (41°F). Currently, our heat pump electricity usage is between 28 and 35 kWh per day.
How about you? Is that a lot or typical for these cold days?
Of course, it’s cold right now; last night it was -6°C (21°F). But yesterday afternoon, with bright sunshine, it was 5°C (41°F). Currently, our heat pump electricity usage is between 28 and 35 kWh per day.
How about you? Is that a lot or typical for these cold days?
We recorded the following consumption over 24 hours from yesterday to today:
- Heat pump: 50.93 kWh
- Domestic hot water production continuously set at 48°C (118°F) on demand from 9 am to 10 pm
- Circulation from 4 am to 8 am and 6 pm to 9 pm
- Heating curve slope 0.3 / level 0, set temperature 21°C (70°F) / actual room temperature 22.5°C (73°F)
- Heated area: 260 m² (2800 ft²)
- Heat pump: 50.93 kWh
- Domestic hot water production continuously set at 48°C (118°F) on demand from 9 am to 10 pm
- Circulation from 4 am to 8 am and 6 pm to 9 pm
- Heating curve slope 0.3 / level 0, set temperature 21°C (70°F) / actual room temperature 22.5°C (73°F)
- Heated area: 260 m² (2800 ft²)