Choosing the correct AC or furnace size helps improve comfort, efficiency, and energy savings. You can estimate the right system size by checking your home’s square footage, climate zone, insulation, and current unit model number.
Quick Sizing Guide
Every 12,000 BTU = 1 ton
24 = 2 tons
36 = 3 tons
48 = 4 tons
60 = 5 tons
Important Tips
Well-insulated homes may need smaller systems
Older homes may require larger capacity
Oversized systems can waste energy and reduce comfort
For the best results, consider a professional load calculation before choosing a new HVAC system.
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