Loading...
24/7 Emergency Service Available
1-888-973-2708Loading...
Find the right filter size for your HVAC system
Florida is in Climate Zone 2, which is cooling-dominant. Average electricity rates are $0.14/kWh.
Climate Zone
2
Electricity
$0.14/kWh
Labor Costs
95% avg
Measure your existing filter or the filter slot opening
Florida is in Climate Zone 2 - Hot-Humid/Hot-Dry (light heating, significant cooling). Homes here typically have higher cooling demands than heating.
There are several ways to determine your correct filter size:
Some filter situations require professional assessment:
Filter sizes are listed as length × width × depth in inches. A 20×25×1 filter is 20 inches long, 25 inches wide, and 1 inch deep. These are nominal sizes—actual dimensions are slightly smaller.
No. Using the wrong size allows unfiltered air to bypass the filter, reducing air quality and potentially damaging your system. Always use the exact size specified.
For most homes, MERV 8-11 provides good filtration without excessive airflow restriction. If you have allergies or respiratory issues, MERV 11-13 may help, but verify your system can handle the higher restriction.
It depends on your needs. Basic fiberglass filters protect your equipment but don't filter small particles well. Pleated filters (MERV 8+) capture more allergens. For most homes, mid-range pleated filters offer the best value.
Calculate the BTU needed to heat or cool your room or home
Calculate your home's heating and cooling load using Manual J methodology
Estimate your monthly heating and cooling costs
Compare energy savings between different SEER ratings