How to Figure What Size Air Conditioner Will Cool a Room

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Figuring out what size air conditioner will be required for your room requires you to know the square footage of the area. Figure out what size air conditioner will be required for your room with help from a foreman for Lighty Contractors in this free video clip.

Part of the Video Series: Air Conditioning
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Video Transcript

Hello, everyone. I'm Joshua Clement, and today I'm going to talk to you about the best way to figure out what size air conditioner you need for your room. When figuring out what size air conditioner you need, you need to figure out how many BTUs you need. Now, there's a simple formula to do just that. First thing you need to do is get the square footage of your room. So, we'll say this room is 150 square feet. So, with 150 square foot room, we will take it and multiply it by 30. So, that would equal 4,500. Now, we're gonna take and add 2,000 to that. So, we'll put 2,000 and add 'em together, which gives us 6,500 BTUs needed for this room. You can do this with any size room. Just take the size of the room, multiply it by 30 and then add 2,000. If you're installing this air conditioner into a kitchen, you wanna add about 4,000 BTUs to compensate for the extra heat caused by the oven. So, to recap, we'll take the square feet of the room, multiply that by 30, and then add 2,000 to it, and that'll give us our needed BTUs. Thank you all for watching and good luck with this project.


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