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A common misconception that many homeowners harbor is that the most powerful air conditioner is always the best option. Many of these people learn the hard way that a high-capacity air conditioner is not only pricey upfront, but it can also lead to unnecessarily expensive energy bills. Here are a few tips that will help homeowners properly size their air conditioner for comfort and economic practicality.
Do the Math
In order to properly size your air conditioner, you need to know the entire square footage of your home. If you don’t know the total square footage, you can calculate it yourself by multiplying the length and width of each room and finding the sum square footage of all the rooms. Then, you can multiply the total square footage of the home by 25 BTUs to find the BTU capacity needed for your air conditioner.
Consider Other Factors
While math will point you in the right direction when it comes to properly sizing your air conditioner, it is important to consider other factors. Some factors you should keep in mind when sizing your air conditioner include:
• If your house is in a sunny area, increase the BTU capacity by 10 percent. The BTU capacity for a heavily shaded house should be reduced by 10 percent.
• Add 4,000 BTU if you use your kitchen frequently all-year-round.
• If a room is occupied by more than two people regularly, add 600 BTU for each additional person.
Properly sizing an air conditioner will boost comfort and cut down on energy costs. For more information about how to properly size your air conditioner, don’t hesitate to contact Barrett & Sons Inc. today Questions? Give Barrett & Sons Inc. a call today at (210) 659-5801. We complete air conditioning installation in Cibalo TX.
Disclaimer: The suggestions in this blog post aren’t based on science rather they’re based off of a few ideas / rough estimates. It’s important to keep in mind that for proper heat load calculations, a manual J load calculation needs to be conducted by a contractor.

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