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Summary is AI-generated, newsdesk-reviewed
  • Incorrect AC size leads to inefficiency and high costs, especially in peak summer months.
  • Calculate AC size: Square footage multiplied by 25, divided by 12,000, subtract 0.05.
  • Consider regional climate when selecting AC size for optimal efficiency and cost savings.

When the air conditioner is too small, users will run into issues with efficiency and very high costs for operation. This is because a unit that is not sufficient for the amount of square footage in a building will continue to “catch up,” to warmer temperatures, but will not be successful.

The result is an air conditioner that won’t shut off. Not only is this not energy efficient, but it will be costly to run the system, especially during the peak summer months.

Determining AC Size

The way users can determine which size A/C unit they should install is a matter of equations. This equation accounts for the square footage of the home, multiplied by 25, and divided by 12,000. One then has to subtract .05 from the amount, and that reveals the size of the unit one needs. If one has a 1500 square foot home, one would need a two-and-a-half ton unit.

This formula is accurate, but it’s also important to consider the region in which people live. For a home in Denver, this size of air conditioning unit would be sufficient. If someone lives in the same size home in Las Vegas, their home would need to be a three-ton unit to work efficiently.

Getting the right unit for the home is important for finances and for the environment. If users currently have the wrong-sized air conditioner in their home, they can contact the professionals at Premier Heating and Air for air conditioning installation and any of their other HVAC services.

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