The most cost-effective way to use a ductless air conditioner

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I’ve heard an *outrageous* amount of contradicting opinions. One says to leave it on all day, another says to turn it off when you’re away from the house, and then another says to adjust the temperature accordingly throughout the whole day. But even within the answers that I have been finding, there is a bunch of terminology that I can’t wrap my head around.

I live in a 2 bedroom apartment with ceiling fans in every room. There is one ductless airconditioner in the living room which is the center of the living space. What’s the most effective way to go about using it?

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4 Answers

Anonymous 0 Comments

Only turn it on when you need it.

Some people think if you let the room get warm, it takes extra energy to cool it back down. This is wrong; keeping the room cool takes much more energy than that. Because if the room is kept cool, more heat seeps into the room throughout the day than if you let it warm up. So there’s more heat for the air conditioner to remove.

The only possible exception is, if you are on a “time of use” electricity plan, it may be better to run the AC all night on cheap electricity and then keep it off during the day.

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