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Heat Pump Cost & Savings Calculator 2026

Calculate installation cost, federal tax credits, fuel savings, and payback for air-source, ductless mini-split, or geothermal heat pumps.

Heat Pump Cost & Savings Calculator 2026

Calculate heat pump installation cost, federal tax credit (25C up to $2,000 + 30% RCE for geothermal), annual heating savings, and payback period.

Current annual heating cost (Natural gas furnace)
$1261/yr
New heat pump cost
$1290/yr
7816 kWh × $0.165/kWh
System cost (installed)
$14,000
Federal credits
−$2,000
25C: $2000

Net cost
$12,000
Annual savings
$-29/yr
Payback
99.0 yrs
18-year lifetime savings: $-12517
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Three types of heat pumps

Air-source heat pump (ducted)

The most common type for homes with existing ductwork. Indoor air handler + outdoor compressor unit. Modern variable-speed inverters work efficiently down to −15°F. Installed cost: $12,000–$18,000 typical. Lifetime: 15–20 years. Replaces gas furnace + central AC in one unit.

Ductless mini-split

Wall-mounted indoor head + outdoor compressor. No ductwork needed. Single zone $4,000–$7,000; multi-zone (3–4 rooms) $9,000–$15,000. Best for: additions, rooms without ducts, vacation homes, or whole-house no-duct retrofits. Lifetime 15–18 years.

Geothermal / ground-source

Buried ground loop + indoor unit. Highest efficiency (COP 4–5 vs 3 for air-source). Highest cost: $25,000–$40,000 installed depending on loop type (vertical drilled, horizontal trench, pond). Lifetime 25+ years for indoor unit, 50+ for ground loop. Eligible for 30% federal RCE credit with no cap.

Federal tax credits in detail

Section 25C — Energy Efficient Home Improvement Credit

Applies to air-source and mini-split heat pumps. 30% of installed cost, capped at $2,000 per year per taxpayer. The cap is annual, so if you stage installations across years (e.g. mini-split in 2026, ducted in 2027), you get $2,000 each year. Combined cap with insulation, windows, doors and other 25C items.

Section 25D — Residential Clean Energy Credit

Applies to geothermal heat pumps only. 30% of installed cost, no cap. A $35,000 geothermal install nets a $10,500 federal credit. Available through 2032 at the 30% level, then steps down.

How heat pumps actually save money

A heat pump moves heat from outside to inside, rather than burning fuel. Coefficient of Performance (COP) measures how much heat output per unit of electrical input. A COP of 3 means you get 3 units of heat for every 1 unit of electricity — already 3× more efficient than electric resistance heating.

Whether that translates to cost savings depends on your fuel-vs-electricity ratio:

  • Replacing oil: nearly always savings, often 50%+. Oil at ~$28/MMBtu loses to heat pump electricity at $0.165/kWh in almost any climate.
  • Replacing electric resistance: dramatic savings (60–75%). The single biggest cost-reduction case.
  • Replacing natural gas: mixed. In cold climates with cheap gas (Midwest, Plains), the heat pump might lose. In moderate climates with high gas prices (CA, NE), heat pump wins.
  • Replacing propane: usually savings, often 40–60%.

Cold climate myth-busting

Modern cold-climate heat pumps work effectively down to:

  • −15°F (Mitsubishi Hyper-Heat, Daikin Aurora) — covers all but extreme upper Midwest, North Dakota, interior Alaska
  • −22°F (Carrier Infinity 24, some Mitsubishi pro-series)

Below those temps, auxiliary electric resistance heat or a gas-furnace hybrid covers the gap. Nearly every US population center is comfortably within heat pump range, even in the upper Midwest.

State-level rebates on top of federal

Many states stack additional rebates:

  • New York: NYS Clean Heat $1,500–$3,000 per ton
  • Massachusetts: Mass Save up to $10,000 for whole-home heat pumps
  • California: TECH Clean California rebates vary by utility ($1,000–$3,000 typical)
  • Maine: Efficiency Maine $4,000 for heat-pump water heater + heat pump combo
  • Washington: $4,000–$6,000 through utility programs (Puget Sound Energy, Seattle City Light)

Check DSIRE for your state. Programs change frequently.

Common heat pump shopping mistakes

  1. Wrong sizing. Oversized heat pumps cycle on/off too often, hurting efficiency and comfort. Get a Manual J load calculation, not a rule of thumb.
  2. Skipping the cold-climate spec. A standard heat pump fails below 25°F. Specify HSPF ≥ 10 and SEER2 ≥ 17 for cold climates.
  3. Single-zone mini-split for whole house. Won't heat distant rooms. Need multi-zone.
  4. Not insulating first. Heat pumps shine in well-insulated homes. Air-seal + insulate before the heat pump install — sometimes you can downsize the heat pump and save $3,000–$5,000.
  5. Choosing low-COP geothermal. If the install isn't done well (bad ground loop sizing), geothermal COP can drop to 2.5 — wiping out the savings.