Quote:
Originally Posted by wa8yxm
By the way did you know electric space heaters are a very rare device, They are 100% efficient.
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100% efficient, yes. Rare? I see'em all the time.
Light bulbs, motors, TV sets -- as space heaters they're all 100% efficient. All of the energy they use turns to heat. In the case of light bulbs some of it goes out the window as light, before hitting something outside and heating it. But all of it eventually heats something.