Residential Water Heaters
Replace your home’s old, inefficient water heater with an A. O. Smith ENERGY STAR® Certified model. Choose a gas or electric tank or tankless, hybrid heat pump, or combi boiler to enjoy a steady supply of hot water whenever you need it. Use our convenient Product Selector Tool to choose the right product for your home.
Shop by Residential Water Heater Type
Shop by Capacity
30-39 Gallons
40-49 Gallons
50-74 Gallons
Tankless with X3® Scale Prevention Technology
Our Gas Tankless Water Heaters with X3® Scale Prevention Technology require no scale related maintenance, and offer three times longer life compared to standard tankless.
Pressure Tanks
Parts & Accessories
Water Heater Resources
Interactive tools, product manuals, warranty information, the A. O. Smith mobile app, and more.
Not sure which product is right for you?
Take our water heater selector quiz to find the correct water heater for your home.
