What Size Heat Pump Should I Use for an 1800
One BTU is the amount of energy it takes to raise a pound of water one degree. When the issue is an air conditioner or heater, the unit is measured in tons. Each ton of heating or cooling capacity is equal to 12,000 BTUs. So a 1-ton heat pump creates or absorbs 12,000 BTUs. A 2.5 ton unit handles 30,000 BTUs, since 12,000 times 2.5 equals 30,000.