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In an electrical space heater, electrical current dissipates energy into heat, and the heat radiates from the element. In a fuel powered space heater, an orifice throttles the fuel feed (resistance to flow), which controls the heating rate. In a steam powered space heater, an orifice throttles the steam (resistance to flow), which controls the heating rate.

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Why does the space heater plug get hot?

The space heater plug gets hot because of the flow of electricity through the metal components, which causes resistance and generates heat as a byproduct.


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