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A. O. Smith Corporation
A. O. Smith makes water heaters, boilers, and water treatment products for homes and businesses around the world.
A. O. Smith makes the big metal tank in your basement that heats your shower water, and it also makes the equipment that heats and treats water in factories, restaurants, and apartment buildings. Most people never think about the company until the day the water runs cold and a plumber tells them the heater is dead. That is exactly the kind of business A. O. Smith is in: boring, essential, and replaced on a predictable schedule.
The company splits into two main pieces. The bigger one is North America, where it sells residential and commercial water heaters under brands like A. O. Smith and State, plus boilers and water treatment gear. The other is the rest of the world, chiefly China, where it sells electric water heaters and water treatment systems to Chinese homeowners, along with operations in India and Europe. In China the brand carries real weight with buyers — it is a name people trust when they put a water heater in a new apartment. Here is the basic economics. A water heater is a grudge purchase: nobody wants one, but everybody needs one, and when it fails you buy quickly rather than shop around for weeks. That gives the manufacturer pricing power, especially with plumbers and contractors who install what they know and trust. The main risk is that this is a mature, replacement-driven market in North America — growth comes mostly from population, regulations pushing more efficient models, and taking share from rivals like Rheem (private) and Bradford White-adjacent brands, not from a boom in new demand. In China, the vulnerability is the housing market: fewer new apartments means fewer new water heaters.
A. O. Smith is a genuinely old company — founded in Milwaukee in 1874, it started as a metal-stamping shop making bicycle parts and car frames before drifting into water heaters. Today it is headquartered in Milwaukee, Wisconsin. It spends heavily on research and development, holds a large patent portfolio, and has a long record of raising its dividend. It also buys back stock steadily and funds acquisitions, such as its water treatment expansion, from the cash the heater business throws off. The whole thing works because replacing a water heater is not optional, and A. O. Smith has spent 150 years making sure its name is the one the contractor reaches for.
Saved answer · last researched 12 Nov 2026