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Info Center

Trust the water heater experts. For more than 145 years, A. O. Smith has been committed to delivering innovative solutions that bring comfort to your home or business. 

Gas Water Heater Vent Configurations

Having the correct venting for your gas water heater is vital to ensure the hot exhaust exits your home.

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Residential Combi Boilers

Water heating and space heating combined into one unit.

How Water Quality Affects Water Heaters

How can the quality of your water affect your water heater? Get tips and more information on water hardness, why it matters, and how to solve it.

Why Water Heater Size Matters

Consider what size of water heater is best for your needs. Review the factors you’ll need to weigh before making a decision.

Water Heaters and Safety

Discover the innovative design features A. O. Smith engineers use to keep your water heater both functional and safe for everyday use.

Product Literature & Videos

Get access to the latest product literature, images & videos.


Browse A. O. Smith Corporation’s latest news, case studies and more.

Why A. O. Smith?

Market Leader

A. O. Smith is a leading manufacturer of both residential and commercial water heating technologies, including the #1 most specified commercial water heater.

Commitment to Innovation

For more than 145 years, we’ve developed state-of-the art products that push new boundaries and improve the lives of our customers.

Best-In-Class Support

We combine cutting-edge technology with committed people who take pride in providing the very best support for our customers.

Unmatched Quality

Our products are put through rigorous quality and endurance testing so now matter where hot water is needed, A. O. Smith can provide a solution you can count on.

Learn more about A. O. Smith