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space heater efficiency

Discussion in 'Misc Electronics' started by RJ_32, Nov 12, 2008.

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  1. RJ_32

    RJ_32 Guest

    While on the subject of energy use, let me ask about space heaters. Can a
    ceramic type really be more efficient than the glowing wire-element type? The
    wire type loses a bit via light, but that must be very little. Otherwise all
    the electricity is converted to heat, right?

    Real losses can come from the fan, and from any motor that makes the heater
    oscillate this way and that. But how can ceramic be better than wire?

    Besides all of that, I don't quite get the benefit of warming up an oil-filled
    radiator - which is a whole different kind of model.

    (Thanks for all the replies to my previous post (on laptop power consumption.))
  2. Bob Myers

    Bob Myers Guest

    A space heater of any type is the only 100% efficient device
    known to man - after all, ALL of the energy it consumes winds
    up as heat one way or another, and that's the point, right? ;-)

    Bob M.
  3. Eeyore

    Eeyore Guest

    NO. All energy becomes heat eventually including that red light.

    NO. The motor gets warm and supplies heat too.

    There is no benefit other than it has thermal inertia. Takes longer to warm up,
    longet to cool down.

    So all electric heaters in a closed room supply exactly the same amount of heat
    regardless of type.

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