| System | 1,500 Square Foot Home | 2,500 Square Foot Home |
|---|---|---|
| Earth-Coupled Heat Pump | $386 | $644 |
| LP Furnace and A/C | $1,220 | $2,014 |
| Gas Furnace and A/C | $1,356 | $2,241 |
| Air-Source Heat Pump | $705 | $1,133 |
Energy use data based on calculations reflecting a home average construction and insulation R-values. Geothermal heat pump SEER 19 COP 4.5, air source heat pump SEER 13 HSPF 8. LP (propane) and natural gas AFUE 80%. Standard A/C SEER 10. Utility rates based on $0.066 per kWh, $1.85 per therm natural gas, $1.25 per gallon propane.
Tax Credit: visit the Department of Energy website for geothermal tax credit details.