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Heat Pump Payback Calculator
Cold-climate heat pumps now operate efficiently down to -15°F and deliver 50-70% heating cost reduction versus gas/oil in many markets. Combined with IRA 25C tax credit ($2K/yr) and HEEHRA point-of-sale rebates (up to $8K income-qualified), payback often falls under 5 years for new-construction or HVAC-replacement scenarios. This calculator computes incremental cost and payback.
Cost of new gas/oil furnace if not pumping
Savings vs old system
Simple payback (yrs)
2.8
Incremental cost
$4,000
Annual savings
$1,440
Lifetime savings
$21,600
How the math works
Heat pump payback compares incremental cost (heat pump cost minus avoided furnace replacement minus incentives) to annual heating savings. Inverter cold-climate heat pumps now operate efficiently down to -15°F and deliver 50-70% heating cost reduction vs gas/oil in many markets.
IRA 25C credit (residential) up to $2,000/yr for heat pump; HEEHRA point-of-sale rebates up to $8,000 (income-qualified). Combined federal incentives can cover 30-100% of install cost.
How to Use
- Enter installed cost of heat pump and avoided cost of replacing old furnace.
- Enter current annual heating cost and the heat pump's expected efficiency improvement %.
- Enter rebates and tax credits.
- Read incremental cost, annual savings, and payback period.
Frequently Asked Questions
Cold-climate performance?
Inverter heat pumps with HSPF2 8.5+ operate down to -15°F. Below that, electric resistance backup kicks in. New cold-climate models maintain 75% of nameplate capacity at 5°F.
IRA incentives?
25C tax credit 30% up to $2K/yr for heat pump installation. HEEHRA: up to $8K rebate income-qualified (under 80% AMI = 100% rebate; 80-150% AMI = 50%).
Geothermal vs air-source?
Geothermal $20-40K installed but COP 4-5 (vs 3-4 for air-source). Federal 30% ITC plus deeper utility rebates for geo. Payback similar in cold climates.
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