A. O. Smith 
A. O. Smith offers a competitive advantage. The company designs, builds, distributes and field supports the world's broadest and deepest line of residential and commercial water heaters, as well as boilers. This single-source concept simplifies ordering, installation and service and is backed by more than 70 years of research and innovation.
State Water Heaters
State Water Heaters offers customized solutions for all residential and commercial hot water and storage needs. In addition to our residential and commercial water heaters, storage tanks, and related products, we have introduced more than 300 new products, including a dramatic expansion of the State commercial offering and have added the ever-growing tankless models to our product line.
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See also:
22 3320 - Tankless Water Heaters
23 3500 - Indirect-Fired Water Heaters
23 5200 - Boilers - combined heat and hot water
A. O. Smith
A. O. Smith offers a competitive advantage. The company designs, builds, distributes and field supports the world's broadest and deepest line of residential and commercial water heaters, as well as boilers. This single-source concept simplifies ordering, installation and service and is backed by more than 70 years of research and innovation.
State Water Heaters
State Water Heaters offers customized solutions for all residential and commercial hot water and storage needs. In addition to our residential and commercial water heaters, storage tanks, and related products, we have introduced more than 300 new products, including a dramatic expansion of the State commercial offering and have added the ever-growing tankless models to our product line.