Westinghouse water heaters are licensed-brand products manufactured by US Craftmaster under the Westinghouse name — and they\'re built around a specific differentiator: 316L stainless steel tank construction on the storage line. Where mainstream water heaters use glass-lined steel that eventually corrodes, Westinghouse uses stainless that doesn\'t. The result is a lifetime tank warranty on the storage line plus a broader product range than Marathon (which is electric-only) — Westinghouse covers stainless gas tanks, condensing gas tankless, whole-house electric tankless, and heat pump.
Westinghouse fits five distinct buyer profiles:
For mainstream installs with standard water chemistry and shorter-than-lifetime ownership horizons, mainstream brands (Rheem, AO Smith, Bradford White) serve those cases more cost-effectively.
Five product families cover the catalog:
Standard residential water heaters (Rheem, AO Smith, Bradford White) use glass-lined carbon steel tanks. The glass lining is a chemical barrier between water and steel, and an anode rod sacrifices itself to protect the steel at any micro-cracks. The system works for 8-15 years until the anode is consumed and the steel starts corroding at exposed points.
Westinghouse uses 316L stainless steel for the tank shell. 316L is a low-carbon austenitic stainless alloy with molybdenum — engineered specifically for corrosion resistance in aggressive water environments. Properties:
Marathon and Westinghouse are the two major brands that eliminate the corrosion failure mode — but they use different materials:
| Westinghouse stainless | Marathon composite | |
|---|---|---|
| Tank material | 316L stainless steel | Polybutylene inner liner, fiberglass outer shell |
| Anode rod | None | None |
| Tank warranty | Lifetime | Lifetime |
| Available in gas | Yes | No (electric only) |
| Available in tankless | Yes (gas + electric) | No |
| Available in heat pump | Yes | No |
| Weight | Standard for stainless | Lighter than steel |
| Typical price (50-gal electric) | $1,049-1,449 | $1,299-1,599 |
Westinghouse wins on: wider product range (gas option, tankless option, heat pump option), lower pricing, broader install flexibility. Marathon wins on: longest residential composite tank track record (in market since 1989), arguably more durable in chloride-extreme well water (though stainless 316L is also strong).
For electric tank installs both work; choose by brand preference and pricing. For gas tank installs only Westinghouse offers the lifetime-warranty path.
Westinghouse condensing gas tankless is a sleeper value pick. Comparable spec to Rinnai RU and Navien NCB at 30-40% less price:
| Westinghouse WGRGH096 | Rinnai RU199e | Navien NPE-210A2 | |
|---|---|---|---|
| Flow rate | 9.6 GPM | 9.0 GPM | 10.1 GPM |
| BTU input | 180,000 | 199,000 | 199,000 |
| Thermal efficiency | 96% | 95% | 95-97% |
| Heat exchanger warranty | 15 years | 15 years | 15 years |
| Wi-Fi | Optional | Optional | Standard (NaviLink) |
| Typical price | $1,249-1,549 | $1,599-1,899 | $1,499-1,799 |
Why the price gap: Westinghouse uses licensed-brand positioning, sells primarily online (lower distribution cost), and US Craftmaster manufacturing brings established mid-tier production efficiency. The product itself is competitive on spec.
The WET series positions between budget (Titan, EcoSmart) and premium (Stiebel Tempra Plus):
WET-27 is the mainstream choice for 2-bathroom warm-to-moderate climate homes. WET-36 for cold climates or larger homes — though as with all 36 kW units, service-panel-intensive (160A continuous).
The Westinghouse WH50HP and WH80HP heat pumps use stainless inner tanks while mainstream competitors use glass-lined steel. This eliminates one failure mode that ages heat pump tanks (corrosion) while preserving the operating-cost advantage:
| Product | Tank / Heat Exchanger | Parts | Labor |
|---|---|---|---|
| Stainless Electric WER | Lifetime (residential, original owner) | 6 years | Not covered |
| Stainless Gas WGR | Lifetime (residential, original owner) | 6 years | Not covered |
| Gas Tankless WGRGH | 15 years heat exchanger | 5 years | 1 year |
| Electric Tankless WET | 10 years heat exchanger | 5 years | Not covered |
| Heat Pump WH | Lifetime tank / 10 years heat pump | 5 years compressor / 2 years parts | Not covered |
See Westinghouse warranty hub. Lifetime tank warranty is non-transferable to next owner.
Westinghouse sells primarily through online specialty retail and limited big-box online:
Not commonly stocked at big-box stores in-person. See Westinghouse dealers hub.
Westinghouse customer service: 1-800-388-0006. Hours: Monday-Friday, 8 AM - 5 PM Eastern. Tech support through US Craftmaster (the actual manufacturer). Tech support quality is mid-tier — adequate for product-specific issues but less direct-factory-engineer access than premium brands like Stiebel Eltron.
Westinghouse is the multi-category lifetime-warranty stainless brand. Where Marathon only covers electric tanks, Westinghouse covers stainless gas tanks, condensing gas tankless, electric tankless, and heat pump — all from one brand. Pricing sits between mainstream value and premium specialty. For long-term ownership in any fuel type with non-transferable lifetime tank warranty, Westinghouse is the broad-category answer. WER050 for electric storage, WGR050 or WGRPV050 for gas storage, WGRGH096 for gas tankless value, WET-27 for electric tankless, WH80HP for heat pump with IRA credit.