What Consumes More Energy – Heating Or Cooling?

February 8, 2010 by admin  
Filed under Heating & AC FAQ

Will heating a litre of water by 1 degree consume more energy than cooling it by 1 deg?

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One Response to “What Consumes More Energy – Heating Or Cooling?”
  1. halfeate says:

    Depends on how you are doing it, but you’d probably be able to get better eefficiency in heating the water than in cooling it (assuming that the water is in equilibrium with its environment and you are forcing these things to happen). The reason that you can get better efficiency in heating the water is that you can just dump the energy into the water more or less and this will heat it up. To cool the water you’d have to use some sort of heat pump and that cannot run at 100% efficiency so there will be some energy wasted.
    So anyway, more energy used in cooling.

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