Rheem is the dominant mainstream US water heater brand; Westinghouse competes against it across multiple product categories with stainless tank construction and value pricing.
Storage tank (50-gallon electric)
| Westinghouse WER050 | Rheem Performance Plus 50 (9-yr) | Rheem Performance Platinum 50 (12-yr) |
|---|
| Tank construction | 316L stainless steel | Glass-lined steel | Glass-lined steel |
| Tank warranty | Lifetime | 9 years | 12 years |
| Anode rod | None | Required | Required |
| Realistic lifespan | 20+ years | 10-14 years | 12-16 years |
| Typical price | $1,049-1,299 | $699-849 | $849-999 |
Gas Tankless
| Westinghouse WGRGH096 (9.6 GPM) | Rheem RTGH-95DVLN (9.5 GPM) |
|---|
| Thermal efficiency | 96% | 0.93 UEF (high-eff condensing) |
| Heat exchanger warranty | 15 years | 12 years |
| Wi-Fi (EcoNet) | Optional add-on | EcoNet standard with module |
| Typical price | $1,249-1,549 | $1,449-1,749 |
Heat Pump
| Westinghouse WH80HP | Rheem ProTerra 80 |
|---|
| UEF | 3.55 | 4.0 |
| Tank construction | Stainless (lifetime) | Glass-lined steel (10-yr) |
| EcoNet connectivity | No | Yes (mature) |
| Typical price | $2,099-2,499 | $2,099-2,499 |
Where Westinghouse leads
- Lifetime tank warranty on stainless storage — Rheem maxes at 12-year
- Stainless tank in heat pump — Rheem ProTerra uses glass-lined steel
- Lower price on gas tankless — $200-400 below comparable Rheem RTGH
- 15-year tankless heat exchanger warranty vs Rheem 12-year
- No anode rod maintenance on stainless storage
Where Rheem leads
- Lower price on standard tanks — Performance Plus at $699-849 vs WER050 at $1,049-1,299
- EcoNet smart connectivity — mature Wi-Fi ecosystem
- Home Depot install service — turnkey nationwide
- Wider contractor base — Rheem-certified installers everywhere
- ProTerra heat pump UEF (4.0) — meaningfully higher than WH HP (3.55)
- Broader product range — commercial, RTGH-RH recirculation, point-of-use
Which to choose
- Storage tank, long-term ownership: Westinghouse stainless
- Storage tank, short-term ownership / budget: Rheem Performance Plus
- Gas tankless, value priority: Westinghouse WGRGH
- Gas tankless, EcoNet / Home Depot install: Rheem RTGH
- Heat pump, maximum UEF: Rheem ProTerra (4.0 UEF)
- Heat pump, stainless tank longevity: Westinghouse WH HP
Bottom line
Rheem wins on price, availability, and smart-control maturity. Westinghouse wins on warranty length and stainless tank durability. For long-ownership homes or aggressive water, Westinghouse premium pays back. For mainstream installs, Rheem is the practical default.