How to Choose the Right Size AC for Your Florida Home

One of the most common mistakes Florida homeowners make is choosing an air conditioner that's the wrong size for their home. Both oversized and undersized units cause problems—and neither will keep you comfortable or save you money.

Problems with Oversized Units

Many people think bigger is better, but an oversized AC creates several issues:

• Short Cycling: The unit cools quickly and shuts off before removing humidity, leaving your home cold but clammy.
• Higher Energy Bills: Starting and stopping repeatedly uses more energy than steady operation.
• Increased Wear: Frequent cycling stresses components, leading to more repairs and shorter lifespan.
• Uneven Cooling: Quick blasts of cold air don't distribute evenly throughout your home.

Problems with Undersized Units

An undersized AC can't keep up with Florida's heat:

• Constant Running: The unit runs non-stop trying to reach the set temperature, driving up energy costs.
• Inadequate Cooling: Your home never reaches comfortable temperatures on hot days.
• Premature Failure: Running constantly wears out the system years ahead of schedule.

How Professionals Size AC Systems

Proper sizing involves a Manual J load calculation that considers:

• Square footage and ceiling height
• Number and orientation of windows
• Insulation levels
• Ductwork condition and design
• Number of occupants
• Heat-generating appliances
• Local climate data

Understanding AC Sizing

AC capacity is measured in tons or BTUs. One ton equals 12,000 BTUs per hour. A typical Florida home might need 2.5 to 5 tons depending on size and other factors. But don't guess—always get a professional calculation.

Get It Right the First Time

At Extreme Air & Heat, we perform detailed load calculations for every installation. This ensures your new system is perfectly matched to your home, providing optimal comfort and efficiency. Contact us for a free consultation and proper sizing assessment.