The capacity of a heat pump is measured in “tons of refrigeration,” with one ton equaling 12,000 Btu. A two-ton heat pump has a cooling capacity of 24,000 Btu. The heating capacity will be in the 24,000 Btu region, but it’s crucial to remember that a unit’s name-plate capacity solely pertains to cooling..
|Home size||size (in tons)||size (in BTUs)|
|500 square feet||1 ton||12,000 BTUs|
|1,000 square feet||2 tons||24,000 BTUs|
|1,500 square feet||3 tons||36,000 BTUs|
|2,000 square feet||4 tons||48,000 BTUs|