A.O. Smith Cross-Reference

A.O. Smith makes gas, electric, and oil water heaters in a wide-variety of sizes and configurations. If you need to replace an existing water heater, consider an A.O. Smith. Their convenient and easy-to-use cross-reference tool lets you match any water heater to an A.O. Smith equivalent. SupplyHouse.com carries A.O. Smith water heaters and replacement parts.