The short answer
A heat pump water heater (HPWH) moves heat from the surrounding air into the water tank instead of generating heat directly, so it can use roughly a third of the energy of a standard electric model. It needs adequate space and air, and may qualify for a federal tax credit.
How does a heat pump water heater work?
A standard electric water heater makes heat by running current through elements — effective, but energy-hungry. A heat pump water heater works like a refrigerator in reverse: it pulls warmth out of the surrounding air and transfers it into the water tank, using electricity to move heat rather than to create it.
Because moving heat is far more efficient than making it, a HPWH can dramatically cut the energy used for water heating — often the second-largest energy use in a home.
When is a heat pump water heater a good fit?
Metro Atlanta's climate is generally favorable for heat pump water heaters, and many homes with an electric tank in a garage or basement are good candidates.
HPWHs work best when the install location offers:
- Enough surrounding air volume (they draw heat from the space — a garage, basement, or mechanical room often works well)
- A nearby condensate drain (they produce condensate, like an AC)
- Adequate electrical capacity for the unit
- A climate where the byproduct of slightly cooler, dehumidified air near the unit is acceptable
What about cost, and the tax credit?
A HPWH costs more up front than a basic electric tank but can pay back the difference through lower energy bills over its life. Qualifying heat pump water heaters may also be eligible for the federal Energy Efficient Home Improvement Credit (Internal Revenue Code Section 25C), which can offset part of the project cost.
Confirm credit details
Federal tax-credit amounts, caps, and eligibility rules change and depend on your tax situation. Confirm current limits with the IRS or your tax professional before counting on a specific figure — we will provide the documentation you need on the equipment side.
What's the right next step?
The best way to know if a heat pump water heater fits your home is an on-site assessment of your space, electrical, and hot-water demand. Head's Plumbing installs high-efficiency water heaters across metro Atlanta and will help you weigh the options honestly against a tankless or standard unit.
Yes. Most units include a backup electric-resistance mode for high-demand or cold conditions, and they perform well in conditioned or semi-conditioned spaces. Correct sizing and placement matter for cold-weather performance.
It runs a fan and compressor, so it makes some sound — comparable to a quiet refrigerator or window AC. Placement away from bedrooms and living areas keeps it unobtrusive.
Savings depend on your rates and usage, but heat pump water heaters commonly use roughly a third of the electricity of a standard electric tank. We can estimate your case during an assessment.
Terms in this guide
- Heat pump water heater (HPWH)
- A highly efficient electric water heater that moves heat from the surrounding air into the water tank instead of generating heat directly. It can use roughly a third of the energy of a standard electric tank and may qualify for federal tax credits.
- Tankless water heater
- A water heater that heats water on demand as it flows through the unit, instead of storing it in a tank. It saves space and avoids standby heat loss, but needs correct sizing and periodic descaling.
- Anode rod
- A sacrificial metal rod inside a tank water heater that corrodes on purpose so the steel tank does not. Replacing a spent anode rod on schedule is one of the cheapest ways to extend a water heater's life.