A O Smith Corp (NYSE: AOS) is a water technology manufacturing company that designs and sells residential and commercial water heaters, boilers, and water treatment products. Revenue is transactional, generated through the sale of equipment and replacement parts to distributors, wholesalers, and retailers across North America and international markets. The company claims the largest manufacturer and marketer position for water heaters in North America, with a leading share in both residential and commercial segments (per 10-K filed 2026-02-10). A significant portion of North America sales derives from replacement of existing installed units rather than new construction demand. Products span gas and electric water heaters, boilers ranging from 45,000 BTUs to 6.0 million BTUs, and water treatment systems including point-of-entry softeners, whole-home filtration, and reverse osmosis units. End markets include single-family homes, apartments, hospitals, schools, hotels, restaurants, and offices.

Revenue model

Transactional product sales of water heaters, boilers, and water treatment equipment, with a material portion of North America revenue derived from replacement of existing installed units (per 10-K filed 2026-02-10).

Products and services

Residential and commercial water heaters; residential and commercial boilers (45,000 BTUs to 6.0 million BTUs) for space heating and hydronic heating; point-of-entry water softeners; whole-home water filtration; point-of-use carbon and reverse osmosis products; commercial water treatment and filtration systems; expansion tanks; commercial solar water heating systems; swimming pool and spa heaters; related parts.

Customers and end markets

Residential end markets: single-family homes, apartments, condominiums. Commercial end markets: hospitals, schools, hotels, large commercial buildings, restaurants, offices. Distribution through wholesalers, distributors, and retailers. Replacement demand is a significant portion of North America segment sales.

Value-chain role

Manufacturer and marketer of water heating and water treatment equipment; sells through distribution and wholesale channels to residential and commercial end users.

Geographic exposure

North America (primary segment) and international markets (per 10-K filed 2026-02-10). Specific international revenue breakdown not supported by provided excerpts.

Source: SEC 10-K, filed 2026-02-10

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