How a coefficient of performance greater than 1 is possible?

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How is it that a machine (like a heat pump) can consume 1kw of power and produce an amount greater than that of heat? What am I misunderstanding?

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Anonymous 0 Comments

It can’t. It does not produce that heat. The heat pump creates a bit of waste heat, but that isn’t the point.

A heat pump can be like a fridge. Mount your fridge such thet the cold part is outside your house and the warm coils are inside. Now turn the fridge on and set it to refrigerate outside.

To be clear, this is a terrible heat pump in real life. It works well in your kitchen to pump heat out of your food and i to your kitchen, but don’t do this to heat your house.

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