Wouldn't a 1000 watt refrigerator heat a room more efficiently than a 1000 watt electric heater? The refrigerator has effectively taken the cold from the room and locked it in an insulated box.
by 
Kornflapper
ANSWERS: 2
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There isn't 'technically' such a thing as 'cold'. So you can't 'take' cold.
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Ah! Yes you're right in the sense that the room heats up by the 1000J per second you put in PLUS some of the heat energy that was in the refrigerator. The heat might be better distributed by the heater.
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mushroom Some of the 1000W energy is used for motive force by the compressor and blower motors. It is also usually a maximum rating for an appliance such as a refrigerator, typical operation will use somewhat less power.
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