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kabukistar t1_ivbf71o wrote

Reply to comment by [deleted] in New dwellings in Washington state must be warmed by heat pumps, rather than furnaces, beginning in July, state board rules Friday by BarnabyWoods

I'd suggest watching the video.

They don't break the laws of physics. They work by moving heat from one location to another (when it's cold, from outside your house to in your house). To create 100W of new heat, you need 100W of electricity, but to move 100W of heat, you need less than 100W of electricity.

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