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.
*When filing a federal tax return, include A. O. Smith's Qualified Manufacturer Code A5X5 on tax form 5695.
A. O. Smith Receives 2025 Silver Edison Award for Sustainable Consumer Product Innovation Learn More >
Residential Water Heaters
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X3® Scale Prevention Technology
Prevent scale build-up to reduce regular maintenance and extend the life of your water heater by up to 300%.
Rebates & Tax Credits
Rebate and incentive programs provide consumers with savings on the purchase of water heaters that meet certain energy-efficiency standards.
*When filing a federal tax return, include A. O. Smith's Qualified Manufacturer Code A5X5 on tax form 5695.
Need Help From A Pro?
A. O. Smith water heaters are professionally installed by local independent contractors.
Product Comparison
Shop by Capacity
0-29 Gallons
30-39 Gallons
40-49 Gallons
50-74 Gallons
75+ Gallons
Pressure Tanks
Parts & Accessories
Water Heater Resources
Interactive tools, product manuals, warranty information, the A. O. Smith mobile app, and more.
