Heat Pump Cost & Savings Calculator

Start with your home's square footage — this drives the design heating load using climate-adjusted BTU/sqft constants. Select your climate region: Warm (Gulf Coast, Florida), Moderate (Mid-Atlantic, Southeast), Cold (Northeast, Midwest), or Very Cold (Upper Midwest, Northern New England).

Choose your current heating fuel — natural gas, heating oil, propane, or electric resistance. Enter your current fuel price in the appropriate units ($/therm for gas, $/gal for oil and propane, or $/kWh for electric resistance). If you're on natural gas or oil/propane, adjust the AFUE efficiency slider to match your furnace or boiler (0.90 is typical for a modern unit).

Enter your marginal electricity rate from your utility bill — this is what the heat pump will run on. Adjust HSPF if you know your target model's rating (default 9 is typical; cold-climate units can reach 12-14). Set the installation cost based on quotes in your area — $4,000-$18,000 is typical for an air-source system.

The results show annual operating costs for both systems, savings, payback period, and a recommended capacity in tons. Use the verdict panel to understand whether the numbers favor a switch at current prices. For a deeper analysis, pair this with the Geothermal Sizing calculator if you are considering ground-source options, or the Energy Consumption calculator to model your full heating and cooling load.

### Heat Pump Buying Guide: Climate, Efficiency, and Cost Tradeoffs Start by confirming your climate region—this is the single biggest factor in whether a heat pump will deliver the savings you expect. If you live in a Warm region (Gulf Coast, Florida) where temperatures rarely drop below 40°F, almost any standard heat pump will work efficiently, with HSPF ratings of 8-10 being sufficient. For Moderate climates (Mid-Atlantic, Southeast) where winter lows occasionally hit 20°F, look for HSPF 10+ units that maintain capacity down to 10°F. If you're in a Cold region (Northeast, Midwest) with regular winter lows below 10°F, invest in a cold-climate certified unit with HSPF 12+ and a rated operating temperature down to -5°F. For Very Cold regions (Upper Midwest, Northern New England) where temperatures regularly drop below -10°F, only use units with HSPF 13+ that are tested to maintain 80% capacity at -15°F, and plan for a small backup electric resistance heat strip for extreme cold snaps.

Understanding HSPF (Heating Seasonal Performance Factor) ratings is critical to calculating real-world savings. HSPF measures how many BTUs of heat the pump produces per watt of electricity over an entire heating season. A higher HSPF means lower operating costs: an HSPF 14 unit uses 36% less electricity than an HSPF 9 unit for the same heat output. For a 2,000 sqft home in a cold climate, that translates to $300-$500 in annual savings, or $4,500-$7,500 over the 15-year lifespan of the unit. When comparing models, don't just look at the advertised HSPF—check the low-temperature performance spec: a unit with HSPF 13 that maintains full capacity down to 0°F is better than an HSPF 14 unit that only works down to 20°F if you live in a cold climate.

Heat pumps beat natural gas in almost all scenarios except when gas is extremely cheap (under $1.00/therm) and electricity is expensive (over $0.18/kWh). At $1.50/therm for gas and $0.14/kWh for electricity, a heat pump will save 30-40% on annual heating costs. If you currently heat with oil or propane, the savings are even larger: 50-60% annually, with payback periods as short as 4-6 years. The biggest mistake homeowners make in cold climates is buying a standard (not cold-climate certified) unit and expecting it to work efficiently below 20°F. Standard units lose capacity rapidly below freezing, and will run almost constantly on backup electric resistance heat when temperatures drop below 10°F, negating most of your savings. Always ask for a cold-climate performance guarantee from your installer, and get at least 3 quotes from contractors with experience installing heat pumps in your region.