A fridge is shifting heat from inside the box and pumping it to a radiator exterior the box in which it goes into the air that is why there is warmth about the outside the house of your fridge.So a swimming pool styring af varmepumpe will get warmth from the surrounding air and transfer it through refrigerant gas and a compressor to a heat exchanger releasing the heat into the pool drinking water flowing all around it.
In truth a vehicle radiator is a styring af varmepumpe In basic conditions you are utilizing a liquid or gasoline
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