Which is more efficient, powering a standard fan all night or an energy star window air conditioner unit?


While I am sleeping, I want to know which one or more energy efficient to save me money. An standard old box fan or the modern energy star air conditioner unit?

5 Responses to Which is more efficient, powering a standard fan all night or an energy star window air conditioner unit?

  1. jeffrey f says:

    A box fan will use less electricity than a window unit, but it will not cool the room as much. If it is cool at night, that won’t be a concern, but if where you live is very hot, then you’ll have trouble getting a good night’s sleep with just a box fan and you’ll need to use a window unit just to keep cool.

  2. Tracy Winters says:

    A fan uses considerable less electricity than an A/C, even the most efficient one!

  3. sanju says:

    the fan. and you can certainly live without an ac.. you’l get used to the heat eventually and the fan will b of use. an ac used for 3 hours is worse than a fan used the whole night.

  4. Anurag C says:

    fan but u cant live without ac

  5. EarthEmpress says:

    the standard old box fan of course..

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