Select the calculation parameters
Heating Requirements (Btuh)
Cooling Capacity (Btuh)
ZIP/Postal Code
Natural Gas LP
Gas Cost ($/thrm)
Oil Cost ($/gal)
Summer Electric Cost ($/kWh)
Winter Electric Cost ($/kWh)
System Type
Outdoor Unit
Indoor Unit
Outdoor Model
Outdoor Description
Indoor Model
Indoor Description
Continuous Fan
Thermal Balance point: the outdoor temperature below which the heat pump no longer has enough capacity to meet the home's heating load. Economic Balance point: the outdoor temperature below which the furnace is more economical to operate than the heat pump.
Therm B.P.
Econ B.P.
Cooling Efficiency
Heating Efficiency
Cooling Cost ($)
Heating Cost ($)
Total Electrical Cost ($)
Total Fuel Cost ($)
Total Annual Cost ($)
Annual Savings
Base System
Investment 1
Investment 2
Investment 3