Air Conditioner - How To Select The Proper Size Unit

Description:
How to Calculate the BTUs for Your Room When it comes to room air conditioners, it's important to have the proper sized unit. If you have an air conditioner that’s too large for the room, it’s going to shut off early and not have enough time to dehumidify and remove the moisture necessary. This will leave you with a very cold and clammy environment. On the other hand, if the air conditioner is too small for the environment that you’re cooling, then the air conditioner will continually run and never cool or dehumidify the room properly, therefore costing you more in energy.

So how do you find the right BTU size air conditioner for your room? It's quite simple; you simply measure the square footage of the room. This is the length multiplied by the width of the room. If it's on the main floor, multiply the square footage by 30. If it’s a second floor or kitchen area, multiply the square footage of the room by 40. If your ceiling height is over 8 feet, add 1,000 BTUs for every foot over that 8 foot ceiling height. Also take into consideration the number of people in the room. For each person over the first two individuals, add an additional 600 BTUs to your formula.

Example: You’re looking for an air conditioner for a 10x15 room on the second floor with a 9 foot ceiling. A 10x15 room equals 150 square feet. Since it’s on the second floor, multiply 150 by 40 to give us 6,000 BTUs. We mentioned that the ceiling height was 9 feet, so we want to add an additional 1,000 BTUs. You will need a 7,000 BTU air conditioner to properly cool this space.

A friendly and knowledgeable P.C. Richard & Son sales associate would be more than happy to help you calculate the amount of BTUs you’ll need for your space and find an air conditioner that will suit your needs. Click, call, or stop by today!

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