Heat Pump Water Heater Cost

A heat pump water heater pulls heat from the surrounding air to warm the water, instead of heating it directly with an element or a burner. Angi puts the average installation at $4,200, with a range of $2,800 to $8,000 depending on size and type. Its cost summary gives a narrower typical range of $3,200 to $4,700.

Cost by tank size

Cost by type

An integrated unit has the heat pump mounted on top of the tank. A split system puts the heat pump outside and the tank indoors.

Labor and other costs

Electrical connections are part of the job and should be handled by a pro (Angi).

Savings

Angi estimates savings of $100 to $500 per year for an average home, depending on hot water use and electricity prices. Angi does not list specific rebate amounts but recommends checking for local rebates and energy incentives.

Compare with other water heaters

For tank and tankless prices, see the >water heater replacement cost guide on our plumbing site.

How a heat pump water heater works

A heat pump water heater pulls heat from the surrounding air and moves it into the water tank. Most models also have electric heating elements as backup for times of heavy hot water use. Because it moves heat rather than making it, it uses much less electricity than a standard electric water heater.

Where it works best

• A space with enough room and airflow around the unit, such as a garage or large utility room.
• A space that stays warm, since the unit uses warm air to heat water.
• A spot with a drain nearby, because the unit produces condensate.

Things to know before buying

• The unit cools and dries the air around it, which can be a plus in a warm garage.
• It makes some fan and compressor noise.
• It may need a dedicated electrical circuit. Some newer models plug into a standard outlet.
• Recovery can be slower in pure heat pump mode.

What affects the price

• Tank size.
• Electrical work, especially when switching from a gas water heater.
• Removing the old water heater and adding a condensate drain.
• Brand and warranty.

Questions to ask

1. Is my planned location large and warm enough?
2. Does my panel have room for the circuit this model needs?
3. Are there utility rebates for heat pump water heaters in my area?

In Texas

Texas garages are hot for much of the year, which gives a heat pump water heater plenty of warm air to work with. Ask your electric utility whether it offers a rebate for this type of water heater.

How it works in your home

A heat pump water heater works like a refrigerator in reverse. A small compressor and fan pull heat from the surrounding air and move it into the water tank. Because it moves heat rather than making it, it uses much less electricity than a standard electric water heater. Most models also have backup electric elements for times of high demand.

A side effect is that the heater cools and dehumidifies the room it is in. In a hot garage, that can be a bonus. In a small, cold basement, it can make the space chillier.

More on where it works best

Heat pump water heaters need space and airflow. The manufacturer lists the minimum room size or air volume and the temperature range the unit works best in. Garages, basements and large utility rooms are common locations. Small closets usually do not work unless the door is louvered or ducting is added.

In warm climates, the unit runs efficiently for much of the year. In colder spaces, it may switch to the backup elements more often, which reduces the savings.

Operating modes

Most models offer several modes:

• Heat pump only: the most efficient, but slower to recover.
• Hybrid or energy saver: uses the heat pump most of the time and the elements when demand is high.
• High demand: uses both for faster recovery.
• Electric only: works like a standard electric tank.
• Vacation: keeps the water warm with minimal energy use.

Choosing the right mode for your household balances comfort and savings.

Installation details

A heat pump water heater needs a condensate drain, because it removes moisture from the air. It is usually taller than a standard tank, so check the ceiling height. Most models need a 240-volt circuit, but some plug-in 120-volt models are designed to replace gas or electric tanks without new wiring. Those recover more slowly but can avoid an electrical upgrade.

Noise

The compressor and fan make a noise similar to a dehumidifier or a window air conditioner. In a garage or basement, it is rarely a problem. Near a bedroom or living area, it may be noticeable.

Rebates

Some utilities and state programs offer rebates on heat pump water heaters. Check before buying, since some programs require pre-approval or a qualifying installer.

Lifespan and maintenance

Heat pump water heaters need a little more care than a standard tank. The air filter on top of the unit should be cleaned periodically, the condensate drain kept clear, and the tank flushed like any other water heater. Taking care of the filter keeps the heat pump efficient and avoids error codes.

Choosing the right size

Size a heat pump water heater on its first-hour rating, just like a standard tank. Because heat pump mode recovers more slowly, some households choose a slightly larger tank than they had before. That way, the unit can stay in efficient heat pump mode more of the time instead of switching to the backup elements during busy mornings.

Sources

1. Angi: How Much Does It Cost to Install a Heat Pump Water Heater? (updated Jul 8, 2026)