ᐅ Noticeable cooling effect with air-to-water heat pump

Created on: 19 Jun 2021 13:10
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_Ugeen_
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_Ugeen_
19 Jun 2021 13:10
Hello everyone,

We have been using the cooling function of our air-to-water heat pump for a few days now. At a perceived temperature of 38°C (100°F), we have 22-23°C (72-73°F) on the ground floor and 24-26°C (75-79°F) on the upper floor. I had hoped the cooling effect would be more noticeable.

On the upper floor, we have lowered all exterior roller shutters (made of aluminum). Downstairs, only where the sun shines through.

Are these good values or rather low? What are your experiences?
Schimi179119 Jun 2021 13:36
The general consensus regarding the cooling function is very cautious...
seat8819 Jun 2021 13:51
The 24 to 26 above can also be achieved without a mechanical ventilation system. Consistently lowering the blinds is essential and is the key to the whole thing.
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Oetzberger
19 Jun 2021 13:53
22 to 23 degrees Celsius (72 to 73 degrees Fahrenheit) indoor temperature thanks to a solidly built house with windows consistently open at night and shading with windows closed during the day

If you want it cool in the height of summer, either build a solid structure with very effective shading or install a proper air conditioning system
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_Ugeen_
19 Jun 2021 14:10
Oetzberger schrieb:

22 to 23 degrees Celsius (72 to 73 °F) indoor temperature thanks to a solid construction house with windows consistently open at night and shading and windows closed during the day

If you want it cool in the middle of summer, either build a solid construction and plan very good shading, and/or install a proper air conditioning system

I was also considering the air conditioning option at first. We were told that it doesn’t work in combination with an air-to-water heat pump. Most likely, we were given wrong information here again.
What does “solid construction house” mean to you?
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Oetzberger
19 Jun 2021 15:48
_Ugeen_ schrieb:

What does a solid house mean to you?

Masonry walls (e.g., brick or preferably calcium silicate blocks) and a reinforced concrete floor slab. Ideally, the roof should have continuous insulation above the rafters made of wood fiber boards. High thermal mass means a strong temperature buffer. However, once it has warmed up, it’s too late—you need to consistently keep the windows closed during the day and maintain shading from below.