ᐅ Air Source Heat Pump and Electricity Consumption

Created on: 9 Nov 2014 21:42
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HilfeHilfe
H
HilfeHilfe
9 Nov 2014 21:42
Hello

We have only been using the pump for 4 months (new build). At the moment, we find that with an indoor temperature of 25°C (77°F), it is pleasantly warm. Do you really save much electricity by lowering it to 23°C (73°F) or 22°C (72°F)? Or does it not make much difference whether it is 25°C (77°F) or 22°C (72°F)?

We keep it constant at one temperature setting.

Thank you
U
user-d29
9 Nov 2014 21:49
You will save a lot of electricity if it’s not sauna-hot.
Currently, the temperature is between 22 and 23 degrees Celsius (72 and 73 degrees Fahrenheit), but we haven’t turned on the heating yet (although we do use the fireplace occasionally because it’s cozy). It’s not really cold outside yet. That means we are currently saving 100% on heating electricity.
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HilfeHilfe
9 Nov 2014 21:54
Hello,

but do 2-3 degrees less really make that much difference? It’s working fine for us. We are cold.
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user-d29
9 Nov 2014 23:14
Our heating engineer once mentioned a 2-3% electricity saving per degree of room temperature. Whether that's true? No idea.
P.S. However, I wouldn't care about electricity savings if 25°C (77°F) was my comfort temperature. Freezing to save a few dollars is not a real option.
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kubus
10 Nov 2014 09:50
Is 25°C (77°F) the measured temperature or the temperature set on the heat pump?
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Wastl
10 Nov 2014 11:37
HilfeHilfe schrieb:
Hello
We have only had the pump running for 4 months (new build). Right now, at 25°C (77°F) indoor temperature, it’s nice and comfortably warm. Do you save a significant amount of energy by setting it to 23°C (73°F) or 22°C (72°F)? Or does it not really matter whether it’s 25 or 22?
We keep it set to a constant temperature.
Thanks

We also keep it between 24°C and 25°C (75°F and 77°F). I experimented a lot—setting it lower for a year, then higher another.
Savings: maybe 2-3%. Although one winter was milder than the other, so it’s not really measurable. That’s why we keep it running at 25°C (77°F).