It’s a Saturday morning, the kids have run through three showers and the dishwasher is going, and the old water heater in the garage is ticking toward its 12th birthday. When it finally leaks, you’ll have a day or two to replace it. That is the moment to decide whether the next one should be another plain tank or a heat pump water heater that makes the same hot water with a fraction of the electricity.
The best heat pump water heater for most homes is the Rheem ProTerra 50-gallon Hybrid: UEF 3.88 on Rheem’s spec for the pro version, a 37–145°F operating range, Wi-Fi and a 10-year warranty. If you want the quietest, pick the A.O. Smith Signature 900 (45 dBA). No 240-volt circuit? The Rheem ProTerra 120V Plug-in runs on a dedicated 120-volt circuit.
Below: six heat pump water heaters sold at Home Depot, Lowe’s, GE dealers and plumbing supply houses, with their real ratings, what a heat pump water heater needs from your basement or garage, how it compares with a regular tank, and what it saves. We researched and compared them from maker spec sheets, ENERGY STAR and retailer listings; we did not test them. None of them is sold on Amazon, so each card links to the maker.
Prices change often. The prices below are what we saw at the maker or a major retailer in October 2026; check the current price before you buy. Installation (plumbing, a drain, and sometimes a new circuit) is extra.
Our top picks
Rheem ProTerra 50 gal Hybrid (240V)
- UEF 3.88 (pro model PROPH50 T2 RH375)
- Works in 37–145°F air
- 10-yr warranty, Wi-Fi, LeakGuard
A.O. Smith Signature 900 50 gal (240V)
- UEF 3.80, first hour 65 gal
- 45 dBA
- About $1,550 at Lowe's
Rheem ProTerra 50 gal 120V Plug-in
- UEF 3.0
- Dedicated 120V circuit, factory cord
- About $2,104 at Home Depot
A.O. Smith Signature 900 50 gal 120V Plug-in
- UEF 3.0
- 120V plug-in
- About $2,219 at Lowe's
GE Profile GeoSpring 50 gal 120V FlexCapacity
- UEF 3.1
- 120V plug-in, convertible to 240V
- Mixing valve: GE says it performs like an 80
Bradford White AeroTherm 50 gal
- UEF 3.44, first hour 65 gal
- 208/240V
- Sold by plumbers and supply houses
Heat pump water heaters compared
| Model | Size | UEF | Power | Warranty | Where to buy | About (Oct 2026) |
|---|---|---|---|---|---|---|
| Rheem ProTerra Hybrid | 50 gal | 3.88 (pro model) | 240V | 10 yr | Home Depot (XE50T10HS45U1); plumbing supply (pro) | Check Home Depot |
| A.O. Smith Signature 900 | 50 gal | 3.80 | 240V | 10 yr limited | Lowe’s | $1,550 |
| Rheem ProTerra 120V Plug-in | 50 gal | 3.0 | 120V dedicated | 10 yr | Home Depot; Ferguson (pro) | $2,104 |
| A.O. Smith Signature 900 120V | 50 gal | 3.0 | 120V plug-in | 10 yr | Lowe’s | $2,219 |
| GE Profile GeoSpring 120V | 50 gal | 3.1 | 120V or 240V | Not confirmed | GE store, appliance dealers | $2,376–$2,639 |
| Bradford White AeroTherm | 50 gal | 3.44 | 208/240V | 6 or 10 yr (by model) | Plumbers, supply houses | $2,250 suggested |
UEF (uniform energy factor) is the federal efficiency rating: the higher, the less energy per gallon of hot water. A plain electric tank can’t go above 1.0, because it turns each unit of electricity into the same amount of heat. A heat pump moves heat from the air into the water, so it gets three to almost four times as much hot water from the same electricity.
Heat pump water heater vs a regular tank
A heat pump water heater (also called a hybrid) is a tank water heater with a small heat pump on top. A fan pulls in room air, the heat pump takes heat out of it and puts it into the water, and slightly cooler, drier air comes out. When you need a lot of hot water fast, regular electric elements kick in as backup, which is why the makers call them hybrids.
| Heat pump water heater | Standard electric tank | Gas tank | |
|---|---|---|---|
| Efficiency (UEF) | About 3.0 to 3.9 in our picks | Below 1.0 | Below 1.0 (some heat goes up the flue) |
| Price of the heater | About $1,550 to $2,640 for 50 gal (our picks) | Lower | Lower |
| Operating cost | ENERGY STAR: about $550 a year less than a standard electric tank (family of four) | Highest of the electric options | Depends on your gas and electric prices |
| Space it needs | A room that stays 40–90°F with plenty of air around it | A closet is fine | Venting to outside |
| Extras | Condensate drain; some fan and compressor noise; cools and dries the room | Silent | Combustion air and venting; a CO alarm nearby |
The savings, from ENERGY STAR: a household of four can save about $550 a year on its electric bill with an ENERGY STAR certified heat pump water heater compared with a standard electric water heater, more than $5,610 over the heater’s life, and the extra cost pays back in about three years. Those figures assume electricity at 14.6 cents per kWh, a $1,503 higher price than a standard tank and a 13-year life. If you’re replacing gas, the math depends on your local gas and electric prices, so run it with your own bills.
The catch is the space. ENERGY STAR says heat pump water heaters should go in an indoor space that stays between 40°F and 90°F all year, with about 1,000 cubic feet of air around the heater; its “ask the experts” page puts the minimum at about 700 cubic feet, roughly a 10 by 10 foot utility room with a 7-foot ceiling. Efficiency suffers in a tight closet unless the maker offers louvered doors or ducting. In summer that cool exhaust is a bonus: ENERGY STAR notes it can help cool and dehumidify the space. In a cold basement in winter, the heater works harder, and with cold incoming water it may switch to its electric elements for a while, which uses more energy in those months.
The best heat pump water heaters
1. Rheem ProTerra 50 gal Hybrid: best overall
Rheem’s ProTerra Hybrid is the most widely available heat pump water heater in the US: the retail version (XE50T10HS45U1) is at Home Depot, and the pro version (PROPH50 T2 RH375-SO) is at plumbing supply houses. Rheem rates the pro model at UEF 3.88 and says the heat pump works in air from 37°F to 145°F, the widest range among our picks, which matters in a cool basement or garage. It runs on 208/240 V, has Wi-Fi through Rheem’s EcoNet app, and the LeakGuard version can shut the water off if it senses a leak. The warranty is 10 years on the tank and parts; Home Depot’s retail model adds a year of in-home labor. It also comes in 40, 65 and 80 gallons.
- Good: high efficiency, wide operating range, leak shut-off, easy to find at a big-box store or through any plumber.
- Watch out: needs a 240V circuit (an electrician’s job if you’re replacing gas); Home Depot’s listing quotes a higher UEF than Rheem’s pro spec, so compare the yellow EnergyGuide label on the exact model.
- Best for: replacing an electric tank that already has a 240V circuit.
2. A.O. Smith Signature 900 50 gal (240V): quietest
Lowe’s sells A.O. Smith’s heat pump line as the Signature 900 (the “Signature Premier” name is now used for gas and standard electric models). The 50-gallon HPS10-50H45DV is rated UEF 3.80 with a first-hour rating of 65 gallons, and A.O. Smith lists it at 45 dBA, which it calls the quietest hybrid on the market. It has two 4,500-watt backup elements for heavy-use days, iCOMM Wi-Fi, Leak Watch alerts and a Leak Shield shut-off valve, and a 10-year limited warranty. A.O. Smith sizes it for households of three to five people.
- Good: lowest noise rating we found, leak shut-off built in, about $1,550 at Lowe’s.
- Watch out: A.O. Smith’s “as low as $120 a year” operating cost is a maker estimate; Lowe’s is the main retail channel.
- Best for: a heater near bedrooms or a finished basement.
3. Rheem ProTerra 50 gal 120V Plug-in: best 120-volt
The big reason many homes skip heat pump water heaters is the wiring: a gas water heater sits next to a 120-volt outlet, not a 240-volt circuit, and adding one can mean a panel upgrade. Rheem’s plug-in ProTerra (retail XE50T10HMS00U0, pro PROPH50 T0 RH120) comes with a factory cord for a dedicated 120-volt circuit. It’s rated UEF 3.0, works in air from 37°F to 145°F, and has EcoNet Wi-Fi, a demand-response port (CTA-2045) for utility programs, washable filters and a 10-year tank and parts warranty. Rheem also makes a version that can share an existing circuit, and a 65-gallon model.
- Good: often avoids a new 240V circuit or a panel upgrade; same wide operating range as the 240V model.
- Watch out: lower UEF and slower recovery than a 240V hybrid; costs more up front (about $2,104 at Home Depot).
- Best for: swapping out a gas tank when there’s no 240V nearby.
4. A.O. Smith Signature 900 50 gal 120V Plug-in: 120-volt runner-up
A.O. Smith’s plug-in (HPV10-50H01DV) is the Lowe’s alternative to the Rheem: 50 gallons, UEF 3.0, a 120-volt cord and a 10-year warranty, at about $2,219. There are also 66-gallon (UEF 3.20) and 80-gallon versions, which help bigger families, since a 120-volt heater recovers more slowly than a 240-volt one.
- Good: plugs in; larger tank sizes for big households.
- Watch out: priced above the Rheem plug-in; check whether it needs a dedicated or a shared circuit for your exact model.
- Best for: Lowe’s shoppers and families who need 66 gallons or more on 120V.
5. GE Profile GeoSpring 50 gal 120V FlexCapacity: most hot water from a 50
GE brought the GeoSpring name back under GE Profile. The PF50S10FPY plugs into 120 volts and is rated UEF 3.1, and it can be converted to 240 volts on a dedicated circuit for faster recovery. Its FlexCapacity mixing valve stores water hotter and blends it down at the outlet, which GE says lets the 50-gallon tank perform like an 80-gallon heater; GE lists 59 gallons of hot water in the first hour. There’s a 40-gallon version (PF40S10FPY), and a 240V-only GeoSpring (PH50S10BNY) at GE dealers.
- Good: the flexibility to start on 120V and move to 240V later; mixing valve stretches the tank.
- Watch out: the most expensive pick (about $2,376 to $2,639 at dealers and GE’s store); sold through GE and appliance dealers, not Home Depot or Lowe’s. We couldn’t confirm the warranty on GE’s page.
- Best for: families that run out of hot water but have room only for a 50-gallon tank.
6. Bradford White AeroTherm 50 gal: best through a plumber
Bradford White sells only through plumbing professionals, so you won’t find the AeroTherm in a big-box store; your plumber orders it. The 50-gallon RE2H50S models are rated UEF 3.44 with a first-hour delivery of 65 gallons on 208/240 volts, and the heat pump runs in air from 35°F to 120°F per the dealer spec. The S6 models carry a 6-year warranty and the S10 models 10 years, and newer versions add Bradford White Connect Wi-Fi. Consumer Reports listed a suggested retail of about $2,250 for the RE2H50S6.
- Good: works well when a plumber handles the whole job, parts and warranty claims included.
- Watch out: no 120V version found; pay attention to S6 vs S10 warranty in your quote.
- Best for: an emergency replacement where your plumber supplies the heater.
How to choose a heat pump water heater
- Check the space first. Find a spot that stays 40–90°F all year with 700 to 1,000 cubic feet of air (or ducting the maker approves), and room for the taller tank. Many hybrids are 60 to 65 inches tall.
- Plan for the condensate. The heat pump pulls water out of the air, so the heater needs a floor drain, a laundry sink nearby or a condensate pump. Your installer will check the maker’s manual.
- Match the power you have. Electric tank with 240V already there: a 240V hybrid. Gas tank next to a 120V outlet: a 120V plug-in may avoid new wiring. New circuits are work for a licensed electrician, with a permit where required.
- Size by first-hour rating, not just gallons. The first-hour rating on the EnergyGuide label tells you how much hot water you get in a busy hour. A 50-gallon hybrid suits most families of three to five; big households or 120V models may need 65 gallons or more.
- Hire a licensed plumber. Water heaters need correct water, relief-valve and drain connections, and most towns require a permit. Gas line caps and new circuits belong to licensed pros.
Rebates and tax credits in 2026
The federal 25C tax credit that covered 30% of a heat pump water heater (up to $2,000) ended for work completed after December 31, 2025, so there is no federal tax credit for one installed in 2026. Two other kinds of help still exist. First, the Home Electrification and Appliance Rebates, run by states with federal money: ENERGY STAR lists a cap of up to $1,750 for a heat pump water heater for households under 150% of area median income. The Department of Energy says these rebates are available only in select states, so ask your state energy office whether yours has launched. Second, many utilities pay their own rebates on heat pump water heaters. Search the ENERGY STAR Rebate Finder and DSIRE, and call your utility before you buy, because some rebates must be reserved in advance. Our home energy rebates guide explains how to look.
Keep exploring
Our heat pumps guide explains how the same technology heats and cools a house. See what a whole-house system costs in heat pump cost, read about the heat pump tax credit in 2026, and compare the best heat pump dryers, which use the same trick in the laundry room. For the science, see thermal energy and electrical energy, or browse the whole heat pumps section.
Heat pump water heater questions
What is the best heat pump water heater in 2026?
For most homes with a 240-volt circuit, the Rheem ProTerra 50-gallon Hybrid: UEF 3.88 on Rheem’s pro spec, a 37–145°F operating range and a 10-year warranty, sold at Home Depot and by plumbers. For the quietest, the A.O. Smith Signature 900 (45 dBA). Without 240 volts, the Rheem ProTerra 120V Plug-in.
Is a heat pump water heater worth it compared with a tank?
Replacing a standard electric tank, usually yes: ENERGY STAR estimates about $550 a year in savings for a family of four and a payback of about three years. Replacing gas, it depends on your gas and electric prices and on installation (a new circuit, a drain). It also needs the right space: 40–90°F and plenty of air.
Do heat pump water heaters work in cold climates?
Yes, as long as the room they’re in stays warm enough. The climate outside matters less than the space: ENERGY STAR advises a space that stays between 40°F and 90°F. In a cold basement the heater is less efficient and may lean on its electric elements in winter, which uses more energy in those months.
Can I plug a heat pump water heater into a regular outlet?
Some models, yes. The Rheem ProTerra 120V, the A.O. Smith Signature 900 120V and the GE Profile GeoSpring 120V run on 120 volts. Rheem’s plug-in needs a dedicated circuit (Rheem also sells a shared-circuit version). Have a licensed electrician confirm the outlet and circuit before you buy.
Are heat pump water heaters noisy?
They make a fan and compressor hum, like a dehumidifier, while the heat pump runs. A.O. Smith lists its Signature 900 240V at 45 dBA. In a basement or garage most people don’t notice; next to a bedroom, pick a quiet model or a spot with a closed door and enough air.
Is there a tax credit for heat pump water heaters in 2026?
No federal tax credit: 25C ended for work completed after December 31, 2025. Income-qualified households may get up to $1,750 through a state Home Electrification and Appliance Rebate program where it has launched, and many utilities pay rebates. Check your state energy office, your utility and the ENERGY STAR Rebate Finder.
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