Heat Pump Heating Savings in 2026: Will It Actually Cut Your Bill?
The Short Answer
A heat pump cuts a heating bill by moving heat instead of making it. How much of that reaches your bill depends on three levers, and they are not equally weighted.
Lever one is what you are replacing. Lever two is what you pay per kilowatt-hour. Lever three is which efficiency tier you buy. In the worked example below, switching from electric resistance to a heat pump saves about $1,180 a year, while moving up from the 8.1 HSPF2 tier to the 8.5 HSPF2 tier is worth about $36 a year at the same US August 2026 rate. The spec sheet is the smallest of the three levers, and it is the one brochures spend the most ink on.
Two things this guide will not do. It will not predict your savings, because that needs your house, your rate, and your installed equipment. And it will not compare a heat pump with a gas furnace, because the arithmetic here uses no gas, propane, or oil price at all. If you heat with fuel, the comparison you need is not here.
Everything else is arithmetic you can repeat by hand.
The Two Numbers Every Brochure Quotes
Two figures do most of the work in heat pump marketing. Both are real, attributed, and more conditional than the pull quote suggests.
ENERGY STAR says an air-source heat pump “can deliver up to three times more heat energy to a home than the electrical energy it consumes,” because it moves heat rather than converting fuel. Note the “up to.” That is a ceiling for a rated product, not a promise about a January cold snap, and not a statement about your ducts.
The Department of Energy states that “Today’s heat pump can reduce your electricity use for heating by approximately 65% compared to electric resistance heating such as furnaces and baseboard heaters.” Read it carefully. It is about electricity use for heating, and the comparison is electric resistance. It says nothing about gas.
The context numbers are shakier than they look. ENERGY STAR notes that almost half of a typical US household energy bill, roughly $1,900 a year, goes to heating and cooling. DOE’s Home Upgrades page says a home’s heating system typically makes up about 30% of a utility bill. Those are not the same measurement: one covers heating and cooling combined, the other heating alone, on different household samples. Neither is your bill. Both are reasons to compute your own number instead of borrowing one.
The Arithmetic: One House, One Rate, Four Answers
Start with a deliberately boring house. It is illustrative. It is not measured, and it is not yours.
- 10,000 kWh a year of electric resistance heat
- 1 kWh = 3,412 Btu, so 10,000 kWh = 34,120,000 Btu of annual heat demand
- One rate: 18.16 cents/kWh, the US residential figure in EIA Table 5.6.A for August 2026
Seasonal average COP = HSPF2 / 3.412. Electric resistance is COP 1.0 by definition.
| Heating source (author’s derivation) | Efficiency used | Annual kWh | Annual cost at 18.16 cents/kWh |
|---|---|---|---|
| Electric resistance, illustrative baseline | COP 1.0 | 10,000 | $1,816 |
| Heat pump at DOE’s approximately 65% reduction | — | 3,500 | $636 |
| Heat pump at 8.1 HSPF2 | COP ~2.37 | ~4,212 | ~$765 |
| Heat pump at 8.5 HSPF2 | COP ~2.49 | ~4,014 | ~$729 |
The steps, so you can check them:
- Resistance (on the illustrative 10,000 kWh a year baseline assumed above, not a measured house): 10,000 kWh × $0.1816 = $1,816.
- DOE’s approximately 65% reduction, applied to that same assumed baseline: 10,000 × 0.35 = 3,500 kWh; 3,500 × $0.1816 = $636. About $1,180 a year less than resistance on the illustrative figures.
- 8.1 HSPF2, on the same assumed 34,120,000 Btu load: 8.1 Btu/Wh is 8,100 Btu/kWh; 34,120,000 ÷ 8,100 = 4,212 kWh; × $0.1816 = $765.
- 8.5 HSPF2, on the same assumed load: 8,500 Btu/kWh; 34,120,000 ÷ 8,500 = 4,014 kWh; × $0.1816 = $729.
The tier gap: 4,212 minus 4,014 is 198 kWh, about $36 a year at 18.16 cents.
What the arithmetic excludes, on purpose: duct losses, defrost cycles, hours served by back-up heat, the gap between rated and installed performance, and any change in comfort setpoints. A real house will not land exactly on these rows. The point is the shape of the answer, not the decimal.
Note also that the 65% row and the HSPF2 rows are not the same kind of claim. The DOE figure is an empirical comparison against resistance. The HSPF2 rows are a rating converted into a seasonal average. They land in the same neighborhood, which is reassuring, but they are not interchangeable.
Your kWh Price Moves the Answer More Than the Spec Sheet
18.16 cents is a one-month national figure from a single August 2026 table. It is not an annual average, it is not your utility’s rate, and it is not a time-of-use tariff. It is one column of one table, published monthly in EIA’s Electric Power Monthly and readable in the Table 5.6.A grapher.
| Region or state | Residential price (cents/kWh) |
|---|---|
| US total, August 2026 | 18.16 |
| US total, August 2025 | 17.57 |
| New England | 28.31 |
| Middle Atlantic | 25.17 |
| East North Central | 19.60 |
| West North Central | 15.92 |
| South Atlantic | 16.04 |
| Massachusetts | 30.48 |
| Connecticut | 24.51 |
| New York | 28.65 |
| Pennsylvania | 21.77 |
| Illinois | 19.32 |
| Michigan | 22.99 |
| Ohio | 19.38 |
| Minnesota | 17.20 |
| Missouri | 16.02 |
| Nebraska | 13.54 |
| North Dakota | 13.31 |
| Florida | 14.99 |
| Georgia | 15.90 |
| Maryland | 21.40 |
| North Carolina | 14.95 |
Run the same 198 kWh tier gap through those prices: about $56 a year in New England at 28.31 cents, about $36 at the US figure of 18.16, about $32 in West North Central at 15.92. On the illustrative rows above, compare the resistance figure ($1,816) with the 8.1 HSPF2 figure ($765). That difference dwarfs any tier gap at any of these prices.
The state rows exist to show spread, not to tell you your rate. Your utility’s tariff, your meter, and your billing period are the only numbers that matter for your decision, and none of them are in this article.
Cold-Climate Specs, Decoded
HSPF2 is the seasonal number: total seasonal space-heating Btu divided by total electrical Wh consumed over the season, in region IV. COP is the instantaneous version: delivered heat rate divided by electric input rate. One is an average, one is a snapshot, and neither is a guarantee at your outdoor design temperature.
ENERGY STAR’s cold-climate thresholds, from its key product criteria:
- Ducted split: at least 8.1 HSPF2 and at least 15.2 SEER2
- Non-ducted split: at least 8.5 HSPF2 and at least 15.2 SEER2
- Single package: at least 8.1 HSPF2 and at least 15.2 SEER2
- COP at 5°F of at least 1.75
- At least 70% of the 47°F heating capacity retained at 5°F
Non-ducted splits, meaning ductless units, carry the higher HSPF2 floor. ENERGY STAR treats ductless heating and cooling as its own product category, so check which list you are shopping from.
Certification requires third-party verified low-temperature performance, tested down to 5°F. Below 5°F, ENERGY STAR’s guidance is that a back-up heat source is the efficient pairing. That is not a failure of the technology; it is how the rating is structured.
Carry the cold-day arithmetic in your head. At COP 1.75, one kWh delivers 3,412 × 1.75 = 5,971 Btu. That is the floor the criteria permit at 5°F. A unit running there still beats resistance, but it is nowhere near three times.
For a wider list to shop from, NEEP publishes a Cold Climate Air Source Heat Pump product list, and notes that space and water heating make up over 90% of all direct carbon emissions from homes and buildings in its region. That is an emissions statistic, not a savings claim.
The Biggest Variable: What You’re Replacing
The worked example compares a heat pump with electric resistance because that is the comparison DOE quantifies. If you have baseboard heaters or an electric furnace, the approximately 65% figure is the right frame, and the savings are structural rather than marginal.
If you have central air conditioning, or a furnace you are replacing anyway, ENERGY STAR notes that in most zones an air-source heat pump can be a drop-in replacement. That changes the economics of the decision without changing the physics: you were buying equipment regardless.
If you heat with gas, propane, or oil, this guide stops. No fuel price is used in the arithmetic here, and a savings claim without a fuel price is a guess wearing a percentage sign.
Incentives: Two Sources, Two Stories
DOE describes two routes for an ENERGY STAR-certified electric heat pump for space heating and cooling, as set out on its Home Upgrades page: a High-Efficiency Electric Home Rebate of up to $8,000, or a Home Owner Managing Energy Savings Rebate, which provides up to $8,000 off projects that significantly reduce household energy use. Both are administered by states, territories, and Tribes. Whether either exists where you live, and at what amount, is a question for your state’s program office. This guide will not guess at your eligibility.
The federal tax credit is messier. The ENERGY STAR air-source heat pump product page states that a tax credit of up to $2,000 applies to products “purchased and installed between January 1, 2023, and December 31, 2032.” ENERGY STAR’s own Federal Tax Credits page states that federal tax credits are “available through the end of 2025” and that the clean-energy credit is “Also ending December 31, 2025.”
Two pages, one organization, and they do not agree. This guide reports the conflict and does not resolve it. Naming a winner would be speculation, and speculating about what happens next would be worse. Read both pages yourself, and read them close to the date you sign a contract.
Sizing: Manual J or Bust
Oversizing is not a safety margin. ENERGY STAR’s guidance is that a contractor verifies proper size using a “Manual J” load calculation, and that a system “either too large or too small for its intended space will struggle to meet your home comfort needs.” Ask for the Manual J by name. A number derived from floor area alone is not a load calculation, whatever confidence accompanies it.
Sizing is not something a better spec sheet fixes. The thresholds in the previous section describe a unit, not a match between a unit and a house.
Thermostats, Setbacks, and an Old Warning
DOE’s guidance: “You can save as much as 10% a year on heating and cooling by simply turning your thermostat back 7-10F for 8 hours a day from its normal setting.” Then the caveat: “Programmable thermostats have generally not been recommended for heat pump systems, but recently, some companies have begun selling programmable thermostats for heat pumps, which make setting back the thermostat cost effective.”
Read that twice. The 10% is a general heating-and-cooling figure, not a heat-pump-specific one, and it is qualified by “as much as.” The historical caution about setbacks and heat pumps is real, and it is why the recommendation is worded so carefully. A setback that lets the house drift deep, or that hands the work to back-up heat, can cost more than it saves. There is no rule here that setbacks always save money with a heat pump. The honest statement is that the guidance changed recently enough that the equipment matters.
Measure First: The Home Assistant Reality Check
You do not need an opinion about your heating bill. You need kWh.
The Home Assistant Energy dashboard shows where energy goes in the house. A power sensor reporting watts becomes kWh through the Riemann sum integral integration. Smart plugs and relays measure individual devices, which is how you separate the heating circuit from everything else on the panel. An upstream-device hierarchy in your energy configuration prevents double counting when a device sits inside a circuit you already measure.
Climate entities expose target temperature and HVAC modes, so setpoint and mode sit in the same place as the energy data. Automations are built from triggers, conditions, and actions, which is enough to log mode changes or react to them.
The caveat matters as much as the method: automation saves nothing if the house is already sitting at a steady temperature. If nobody touches the thermostat and it never changes, there is no behaviour to shift and nothing to optimize. Baseline first, then decide.
And the numbers in this guide did not come from Home Assistant. Its documentation is a source for method, not for savings. No percentage in this article is attributable to it.
The Bottom Line
Ordered by how much each lever moved the worked example, not by how much marketing attention it receives:
- What you’re replacing. Resistance to heat pump: $1,816 to $636 at DOE’s approximately 65%. Nothing else on this list is close.
- Your kWh price. The same 198 kWh tier gap is about $56 a year in New England and about $32 in West North Central.
- Efficiency tier. 8.1 versus 8.5 HSPF2: about $36 a year at the US August 2026 figure.
Buy the tier that meets the cold-climate thresholds and is correctly sized for the house. Then spend your remaining attention on your own rate, because that is the variable that moves the same kWh math furthest without buying anything.
How This Guide Was Built
This is a documentation-only article. It was assembled from published material from the Department of Energy, ENERGY STAR, the Energy Information Administration, NEEP, and the Home Assistant documentation. No hands-on testing occurred. No heat pump was installed, no monitoring was run, and no bill was measured for this piece. Every figure is either quoted from one of those sources or derived in the text from them, with the derivations shown so you can check them. The tax-credit conflict is reported as found and deliberately left unresolved.
FAQ: What Homeowners Actually Search
How much can a heat pump cut my heating electricity use compared with electric resistance heat?
DOE states that today’s heat pump can reduce electricity use for heating by approximately 65% compared to electric resistance heating such as furnaces and baseboard heaters. That is a use figure, not a bill figure, and it applies only to the resistance comparison.
Do heat pumps work in cold climates?
ENERGY STAR’s cold-climate criteria require third-party verified low-temperature performance tested down to 5°F, a COP of at least 1.75 at 5°F, and at least 70% of the 47°F heating capacity retained at 5°F. Below 5°F, ENERGY STAR’s guidance is that a back-up heat source is the efficient pairing.
What is HSPF2, and how do I turn it into a COP?
HSPF2 is total seasonal space-heating Btu divided by total electrical Wh consumed over the season, for region IV. Seasonal average COP is HSPF2 divided by 3.412, because 1 Wh equals 3.412 Btu. So 8.1 HSPF2 works out at about COP 2.37.
What HSPF2 counts as good?
ENERGY STAR’s cold-climate floors are 8.1 HSPF2 and 15.2 SEER2 for ducted splits and single packages, and 8.5 HSPF2 and 15.2 SEER2 for non-ducted splits.
Can a heat pump replace my air conditioner or furnace?
ENERGY STAR notes that in most zones an air-source heat pump can be a drop-in replacement when a central AC or furnace is being replaced, with a contractor verifying proper size using a Manual J load calculation.
Are there rebates or tax credits for heat pumps?
DOE describes a High-Efficiency Electric Home Rebate of up to $8,000 or a Home Owner Managing Energy Savings Rebate of up to $8,000, administered by states, territories, and Tribes, so the answer belongs to your state. On federal tax credits, ENERGY STAR’s product page says up to $2,000 for products purchased and installed between January 1, 2023, and December 31, 2032, while ENERGY STAR’s Federal Tax Credits page says credits are available through the end of 2025. The two pages conflict and this guide does not resolve it.
Will a thermostat setback save money?
DOE says you can save as much as 10% a year on heating and cooling by turning the thermostat back 7-10F for 8 hours a day. DOE also notes that programmable thermostats have generally not been recommended for heat pump systems, though some companies now sell programmable thermostats for heat pumps. There is no guarantee that setbacks always save money with a heat pump.
Will a heat pump cut my bill compared with a gas furnace?
This guide does not answer that. No gas, propane, or oil price is used anywhere in it, and no savings claim is made against a gas furnace.
📖 Related Reads
- ToolBrain — tool reviews, LLM comparisons, and AI workflow guides
Cross-links automatically generated from SmartHome Field Guide.
← Back to guides