Heat pump water heaters that run on a 120 V outlet, so they can replace a gas tank without a new 240 V circuit.
Prices were last checked October 21, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Best 120 V Plug-In Heat Pump Water Heaters: 40–50 Gallon
- GE Profile 50 Gal 120V#1 of 5Full review
The most efficient 120 V plug-in here, and the quietest, for replacing a gas tank without new wiring. It can be rewired for 240 V later if the household outgrows it.
GE Appliances PC Richard $2,639.97$2,639.973.2059 gal120 V35 °F - GE Profile 40 Gal 120V#2 of 5Full review
The most efficient 120 V plug-in here, and the quietest, for replacing a gas tank without new wiring. It can be rewired for 240 V later if the household outgrows it.
GE Appliances PC Richard $2,529.97$2,529.973.1046 gal120 V35 °F - Rheem ProTerra Plug-in 50 Gal#3 of 5Full review
A plug-in for replacing a gas tank in a mild-climate garage or basement without new wiring. Buy a size up, since it has no element to fall back on.
Home Depot $2,119$2,1193.0055 gal120 V37 °F - A.O. Smith Voltex 120V 50 Gal#4 of 5Full review
A 120 V plug-in with a backup element and leak shut-off included. Its certified efficiency is among the lowest here, so it suits replacing a gas tank more than replacing an electric one.
Lowe's $2,219$2,2193.0052 gal120 V37 °F - Rheem ProTerra Plug-in 40 Gal#5 of 5Full review
A plug-in for replacing a gas tank in a mild-climate garage or basement without new wiring. Buy a size up, since it has no element to fall back on.
Home Depot $1,699$1,6992.8045 gal120 V37 °F
Best 120 V Plug-In Heat Pump Water Heaters: 65 Gallon
- GE Profile 65 Gal 120V#1 of 3Full review
The most efficient 120 V plug-in here, and the quietest, for replacing a gas tank without new wiring. It can be rewired for 240 V later if the household outgrows it.
GE Appliances Wayfair $2,547$2,5473.4077 gal120 V35 °F - A.O. Smith Voltex 120V 66 Gal#2 of 3Full review
A 120 V plug-in with a backup element and leak shut-off included. Its certified efficiency is among the lowest here, so it suits replacing a gas tank more than replacing an electric one.
Lowe's $2,698$2,6983.2076 gal120 V37 °F - Rheem ProTerra Plug-in 65 Gal#3 of 3Full review
A plug-in for replacing a gas tank in a mild-climate garage or basement without new wiring. Buy a size up, since it has no element to fall back on.
Home Depot $2,199$2,1993.1263 gal120 V37 °F
Best 120 V Plug-In Heat Pump Water Heaters: 80 Gallon
- GE Profile 80 Gal 120V#1 of 3Full review
The most efficient 120 V plug-in here, and the quietest, for replacing a gas tank without new wiring. It can be rewired for 240 V later if the household outgrows it.
GE Appliances Wayfair $3,042$3,0423.5094 gal120 V35 °F - Rheem ProTerra Plug-in 80 Gal#2 of 3Full review
A plug-in for replacing a gas tank in a mild-climate garage or basement without new wiring. Buy a size up, since it has no element to fall back on.
Home Depot $2,798$2,7983.4684 gal120 V37 °F - A.O. Smith Voltex 120V 80 Gal#3 of 3Full review
A 120 V plug-in with a backup element and leak shut-off included. Its certified efficiency is among the lowest here, so it suits replacing a gas tank more than replacing an electric one.
Lowe's $3,098$3,0983.0093 gal120 V37 °F
