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Heat pumps can't take the cold? Nordics debunk the myth (techxplore.com)

submitted 1 year ago by L4s@lemmy.world to c/technology@lemmy.world

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Heat pumps can't take the cold? Nordics debunk the myth::By installing a heat pump in his house in the hills of Oslo, Oyvind Solstad killed three birds with one stone, improving his comfort, finances and climate footprint.

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[–] dojan@lemmy.world 1 points 1 year ago (1 children)

No, I believe it's the heating that does it. In petrol cars the heating is a side effect of the engine running. Using it to heat the car in a way improves the fuel efficiency. In an EV the heat doesn't come from the engine, so the battery needs to feed both the engine and the heater.

You can have the engine on and not driving and your petrol will last quite long, not so much with an EV, unfortunately.

[–] helenslunch@feddit.nl 1 points 1 year ago* (last edited 1 year ago)

Using it to heat the car in a way improves the fuel efficiency

Normally, yes, but in this case it's being used purely for heat, with probably 10% efficiency, where the EV is operating at 300% efficiency so no, definitely not.

You can have the engine on and not driving and your petrol will last quite long, not so much with an EV, unfortunately.

As I mentioned elsewhere, it will last several days.