A.O. Smith
State Water Heaters
A.O. Smith vs State Water Heaters
Expert head-to-head water heater comparison by Nassau County installers with 10+ years installing both brands on Long Island.
Head-to-Head Scorecard
A.O. Smith
1 win
State Water Heaters
1 win
Dead heat — choose by your priorities
Performance Score Rings
A.O. Smith
premiumTop Strengths
- 150+ years of water heater expertise
- Excellent tank durability
- Blue Diamond glass coating
Watch Out For
- Higher price point
- Some premium features dealer-exclusive
State Water Heaters
mid-rangeTop Strengths
- A.O. Smith engineering at lower cost
- ProLine XE efficiency
- Contractor-focused brand
Watch Out For
- Less brand recognition
- Shorter warranty than parent brand
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Expert Verdict
These are sibling brands from the same manufacturer. State is typically the value-labeled line of comparable A. O. Smith platforms, so the honest comparison is model number and warranty tier — not brand reputation.
Pick A.O. Smith when…
The A. O. Smith model carries the longer tank warranty tier or the specific features you need.
Full A.O. Smith reviewPick State Water Heaters when…
You want the lower-cost sibling for a straightforward replacement and the shorter warranty tier is acceptable.
Full State Water Heaters reviewCategory-by-Category Breakdown
Click any category to see why one brand wins.
Full Specification Comparison
| Spec | A.O. Smith | State Water Heaters |
|---|---|---|
| Overall Rating |
4.7/5
|
4.2/5
|
| Price Range (Installed) |
$1.1k – $5.0k
|
$900 – $4.0k
|
| Efficiency (UEF / COP) |
0.65–3.5
|
0.65–0.95
|
| Parts Warranty |
12 years
|
6 years
|
| Tank Warranty |
12 years
|
6 years
|
| Heater Types |
Tank, Tankless, Hybrid Heat Pump
|
Tank, Tankless
|
| Founded |
1874
|
1946
|
| Country |
USA
|
USA
|
| Parent Company |
A.O. Smith Corporation
|
A.O. Smith Corporation
|
Warranty Comparison Timeline
* All warranties shown assume product registration. Unregistered units typically receive 5-year coverage.
Visual Comparison
Pros & Cons
A.O. Smith
Strengths
- 150+ years of water heater expertise
- Excellent tank durability
- Blue Diamond glass coating
- iCOMM smart connectivity
Weaknesses
- Higher price point
- Some premium features dealer-exclusive
State Water Heaters
Strengths
- A.O. Smith engineering at lower cost
- ProLine XE efficiency
- Contractor-focused brand
- Good parts availability
Weaknesses
- Less brand recognition
- Shorter warranty than parent brand
- No hybrid models
🏭 Same Factory Explainer
A.O. SmithState Water Heaters— Same Factory
State Water Heaters has been part of A. O. Smith Corporation since 2001, with shared engineering and production in Ashland City, Tennessee. Expect comparable builds and heavily interchangeable parts between matched models.
Need Help Choosing Between A.O. Smith and State Water Heaters?
Our EPA 608-certified technicians install both brands daily. Get a free, no-pressure quote.
Long Island Installation Guide
Long Island Installation Guide
Because the hardware overlaps, a Long Island quote comparing these two should be judged on installed scope: venting, gas or electrical work, expansion tank, pan and drain, code updates, permit, and haul-away. That is where quote-to-quote differences actually come from.
Climate Zone 4A
Coastal Salt Air
PSEG Rebates
Customer Reviews
❓A.O. Smith vs State Water Heaters FAQ
Is A.O. Smith or State Water Heaters better for Long Island homes?
These are sibling brands from the same manufacturer. State is typically the value-labeled line of comparable A. O. Smith platforms, so the honest comparison is model number and warranty tier — not brand reputation.
Which is cheaper to install in Nassau County, A.O. Smith or State Water Heaters?
A.O. Smith ranges from $1.1k – $5.0k installed, while State Water Heaters ranges from $900 – $4.0k installed in Nassau County.
Are A.O. Smith and State Water Heaters made by the same company?
Yes! Both are manufactured by A.O. Smith Corporation, though they target different market segments with distinct pricing and dealer networks.
What warranty does A.O. Smith offer vs State Water Heaters?
A.O. Smith offers 12 years parts warranty. State Water Heaters offers 6 years parts warranty.
Still Deciding?
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