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0 pointseldaisfish5mo ago0 comments

> They use the same amount of electricity whether heating or cooling

This is completely wrong. The amount of power depends on the temperature delta. When cooling, you are typically not cooling your home to 30 degrees Celsius below the outdoor temperature. However, when heating, you are typically heating your home to around 20 degrees above outdoor temperature. Heating consumes more power than cooling.

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ssl-35mo ago

It is approximately correct as long as the temperature deltas are approximately the same for heating vs cooling.

(And as long as we're dispelling generalizations: Those deltas do vary wildly based on local climate, such that they're impossible to generalize and typify.

For instance: The city of Saint Paul, Minnesota [USA] has a very different climate compared to the city of São Paulo in Brazil, with accordingly-different heating/cooling deltas.

https://weatherspark.com/h/y/10422/2025/Historical-Weather-d...

https://weatherspark.com/h/y/30268/2024/Historical-Weather-d... )

eldaisfishOP5mo ago

Well, in that case, you don’t need a heat pump. You need a sweater and an AC.

The real advantage of heat pumps is in displacing high cost fuels.

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