What a home water heater costs to buy and run
Typical installed ranges from HomeAdvisor, Angi, and ENERGY STAR, labeled by year, plus the federal credit that ended in 2025.
A water heater has three prices, and only one of them is on the carton. The carton is the equipment. The second price is the installed job: labor, vent or circuit, pan, expansion tank, permit, and haul-away.
The third is the operating cost, which depends on fuel rates the carton does not know. Published ranges below are typical figures from named sources in named years.
They are not a quote for your house. Two local bids that itemize the same scope will beat any national range. Use the ranges to tell whether a bid forgot the vent.
Equipment is not the installed price
HomeAdvisor’s 2025 water-heater replacement guide published a normal range of about $881 to $1,826, with an average near $1,348, and a type table that spreads wider: a tank around $600 to $2,500 installed, a tankless job around $1,400 to $3,900, gas around $700 to $2,700, electric around $600 to $3,500, and a hybrid heat pump around $1,200 to $3,500.
Those bands mix equipment and labor in a national estimator’s method. They are useful as a sniff test and useless as a ceiling. A condensing tankless unit with a new gas line and a new plastic vent can land above the tankless band. A like-for-like electric tank in a clear closet can land inside the bottom of the tank band.
Angi’s 2026 tankless cost article published an average near $2,639 and a range of about $1,404 to $3,902.
Angi’s 2026 heat-pump installation article led with an average near $4,200 and a typical span of about $3,200 to $4,700, while a table on related Angi pages has also shown lower bands for a conventional integrated unit, closer to the HomeAdvisor hybrid range.
The conflict is the point. One figure is a national installed average that includes difficult jobs. Another is a unit-plus-simple-swap.
Ask which one a contractor is implying. Do not average them into a fake true price.
ENERGY STAR’s installation note, which is the most careful of the three on heat pumps, separates the pieces. The heat pump unit itself is typically about $1,500 to $3,000 before incentives when it replaces an electric storage heater, and some split systems cost several times that.
Labor and materials in an informal contractor survey ran about $1,000 to $3,000 on top of the unit, with the rule of thumb that installation can cost about as much as the heater and a long list of reasons it might not. Condensate pumps, louvers, ducting, electrical changes, and local labor rates are the reasons. Read that note before you compare a heat-pump pallet price with a gas-tank installed price. They are different products.
| What was published | Source and year | What it claimed to include |
|---|---|---|
| About $881 to $1,826, average near $1,348 | HomeAdvisor, 2025 replacement guide | A normal installed replacement, all types mixed |
| Tank about $600 to $2,500; tankless about $1,400 to $3,900 | HomeAdvisor, 2025 type table | Installed cost by type, still a national range |
| Tankless average near $2,639, about $1,404 to $3,902 | Angi, 2026 tankless article | Installed tankless, scope varies inside the band |
| Heat pump average near $4,200, many jobs about $3,200 to $4,700 | Angi, 2026 heat-pump article | Installed heat pump, including harder jobs in the average |
| Unit about $1,500 to $3,000, plus about $1,000 to $3,000 labor and materials | ENERGY STAR heat-pump installation note | Equipment and labor stated separately. Splits can cost much more |
If a bid is far under the bottom of every band, ask what is missing: permit, pan, expansion tank, new flex connectors, haul-away, or a vent the old heater’s chimney cannot serve. If a bid is far above the top, ask what is included: a service upgrade, a long gas line, a condensate pump, drywall, or a second day of crane access. The band does not forbid the bid. It forces the explanation.
What moves the number
Venting is the large line on gas jobs. An atmospheric tank that reuses a sound metal vent is a different project from a condensing unit that needs listed plastic, a termination, and a condensate neutralizer. That architecture is condensing gas heaters.
The gas line is the large line on tankless jobs when the old line was sized for 40,000 Btu/h. Electrical work is the large line when the panel is full or the new nameplate does not match the old breaker.
Electrical safety explains why you do not reuse an undersized circuit. Permits and inspection fees are smaller and are not optional where the city requires them. Permits, pans, and straps is the list to put next to the quote.
Haul-away and a pan seem minor until a quote omits them and the old tank stays in the driveway. An expansion tank is minor until the new relief valve drips, which is why the relief valve drips.
Ask for those lines in writing. A quote you cannot compare line by line is not a second data point. It is a single number.
Operating cost, without a borrowed dollar
The EnergyGuide label prints an estimated annual cost using a national average fuel price that is also printed on the label. That dollar is not your bill. The label’s estimated annual energy use, in kilowatt-hours or therms, is the transferable number.
Multiply by the marginal rate on your utility bill. Uniform energy factor explains why you still should not rank a gas UEF against an electric UEF as if they were the same kind of efficiency.
The Department of Energy’s consumer comparison says an ENERGY STAR tankless heater could save on the order of $100 or more a year versus storage, and that ENERGY STAR heat pump models can save on the order of a few hundred dollars a year versus electric resistance.
Those sentences are that article’s illustrations. They were not recomputed against 2026 fuel prices, and they are not a credit on your account. A household that uses little hot water saves less. A household that uses a great deal saves more.
To reprice a label, use a current rate and the label’s own energy use.
EIA’s Short-Term Energy Outlook, summarized on the agency’s analysis page, forecasts a 2026 U.S. residential average of 18.21 cents per kilowatt-hour and $16.09 per thousand cubic feet of natural gas. EIA marks outlook figures as forecasts.
They are not your tariff, and a thousand cubic feet is not a therm: a therm is 100,000 Btu, and pipeline gas is a bit over 10 therms per thousand cubic feet, so convert only if you know the Btu factor your utility uses. The clean method is still the one above: kilowatt-hours or therms from the EnergyGuide, times the marginal rate on your bill.
An illustration, not a model you can buy: 2,000 kilowatt-hours a year of difference times 18.21 cents is about $364. If two labels do not actually differ by 2,000 kilowatt-hours, that dollar is the wrong one. Electric tank or heat pump uses the same method on the choice where the gap is usually largest.
A current Department of Energy home-upgrades page says water heating accounts for nearly 20 percent of the average home’s energy use and is typically the second-largest energy expense after heating and cooling. An older DOE fact sheet put the share between 15 and 25 percent. Both are national descriptions.
The share is lower in a house whose space heat dominates the bill, and higher where hot water is one of the few loads. The first-hour worksheet in how to size a tank does not compute the bill, and the bill does not size the heater.
The federal credit ended for new installations
The Energy Efficient Home Improvement Credit under section 25C covered qualifying heat pump water heaters at 30 percent of project cost, up to $2,000 in a year, for property placed in service in the window the IRS describes. The IRS instructions for that credit, and the agency’s questions-and-answers on the 2025 statute that changed several energy credits, say the credit is not allowed for property placed in service after December 31, 2025.
A unit installed in 2025 may still be a filing item on that year’s return. A unit installed in 2026 does not get the 25C heat-pump water-heater credit under that termination. ENERGY STAR’s tax-credit page states the same effective window, through December 31, 2025.
Do not let a contractor subtract $2,000 from a 2026 bid and call it a federal credit. A state-run High-Efficiency Electric Home Rebate can still exist, with a statutory ceiling of $1,750 for a heat pump water heater, and DOE Program Notice 26-2 changed who qualifies. Utility rebates are a third pile of money.
The rules, the income caps, and the fuel-switching limit are in heat pump rebates in 2026. This site does not print a state-by-state dollar list, because those portals open and pause on their own schedules. If a bid names a rebate, open that program’s page before you subtract it.
How to use the ranges on a real quote
Get two itemized quotes for the same scope: same fuel, same first-hour rating or the same tankless chart cell, pan, expansion tank, permit, haul-away, and any required vent or circuit.
Throw out a quote that will not itemize. Compare the survivors to the bands above as a reasonableness check, not as a target you must hit. Then compare the operating cost using your rates and the EnergyGuide energy use.
A more expensive heat pump can be the cheaper ten-year machine against electric resistance, and a poor buy against an already-vented gas tank with cheap gas. Repair or replace comes first if the old heater’s fault is a cheap part. A new install is the wrong remedy for a failed thermostat.
Sources
HomeAdvisor, “How Much Does Water Heater Replacement Cost in 2025?” (homeadvisor.com). Angi, tankless cost article and heat-pump installation cost article, 2026 figures as published on angi.com. ENERGY STAR, “What Goes into the Cost of Installing a Heat Pump Water Heater?”
(energystar.gov). U.S. Department of Energy, Energy Saver, “Which Water Heater Is Right for You?,” for the illustrated annual savings. U.S. Department of Energy fact sheet on water heating (EERE, domestic water heating share of household energy).
U.S. Energy Information Administration, Short-Term Energy Outlook price summary on the EIA analysis page (eia.gov/analysis), for the 2026 residential forecasts of 18.21 cents per kilowatt-hour and $16.09 per thousand cubic feet. Those cells are outlook figures.
U.S. Department of Energy, “Home Upgrades” (energy.gov/save/home-upgrades), for the “nearly 20 percent” share of household energy. Internal Revenue Service, “Energy Efficient Home Improvement Credit,” and the IRS Q&A on energy-credit terminations under the July 4, 2025 statute.
ENERGY STAR, heat pump water heater tax credit page, stating the credit window through December 31, 2025. DOE Program Notice 26-2 is cited in the rebate guide.