American Water Heater and State compete head-to-head in the residential tank water heater market. Both are credible options, but they target different priorities. Here's the honest tradeoff breakdown to help you choose.
The 60-second verdict
American Water Heater and State are sibling brands under A.O. Smith — same factories, similar warranty terms. The difference is channel: American Water Heater goes through residential retail; State leans commercial/plumbing-supply.
Where American Water Heater wins
- Strong residential retail channel presence
- ProMax commercial tier in mainstream pricing
- Easier homeowner availability
Where State wins
- Stronger commercial reputation
- ProLine commercial gas more commonly specified
- Slightly better warranty service for licensed plumber accounts
Direct spec comparison
| Factor | American Water Heater | State |
|---|---|---|
| Primary category positioning | A.O. Smith subsidiary brand | A.O. Smith subsidiary brand (commercial-leaning) |
| Typical warranty (residential) | 6/9/12-year tiers | 6/9/12-year tiers |
| Typical lifespan | 12-15 years | 12-15 years |
| Price tier | $450-900 | $500-1000 |
| Dealer network | Home Depot, Lowe's, plumbing supply | Plumbing supply, commercial accounts |
| Parts availability | A.O. Smith parts network | A.O. Smith parts network (same factories) |
Choose American Water Heater if
You're shopping at Home Depot or Lowe's for a residential install.
Choose State if
You're working with a licensed plumber for a commercial-spec residential install (50-gallon or larger), or you have a plumber relationship who prefers State.
Honest bottom line
These are essentially the same product family in different wrappers. Buy whichever your dealer offers better pricing on. For a 50-gallon residential, American Water Heater ProLine ≈ State ProLine in everything that matters.