Rinnai is the dominant US residential gas tankless brand. Westinghouse WGRGH competes head-on with significantly lower pricing for comparable specs.
Side-by-side (volume sizing)
| Westinghouse WGRGH096 | Rinnai RU199e | Rinnai RX199e (newer) | |
|---|---|---|---|
| Flow rate | 9.6 GPM | 9.0 GPM | 9.4 GPM |
| BTU input | 180,000 | 199,000 | 199,000 |
| Thermal efficiency | 96% | 95% | 95% |
| Heat exchanger | Stainless | Stainless | Stainless |
| Heat exchanger warranty | 15 years | 15 years | 15 years |
| Wi-Fi | Optional | Control-R (optional) | Control-R 2.0 standard |
| Recirculation pump | Optional | Optional | Optional |
| Typical price | $1,249-1,549 | $1,599-1,899 | $1,799-2,099 |
Why Westinghouse undercuts Rinnai
- Licensed brand with lower marketing spend
- Online distribution with lower channel cost
- US Craftmaster manufacturing — established mid-tier production efficiency
- Less established brand premium — Rinnai charges for brand recognition
Where Rinnai leads
- Brand recognition — Rinnai is the contractor default; Westinghouse less commonly stocked at supply houses
- Wider contractor familiarity — easier to find Rinnai-trained installer
- Control-R 2.0 Wi-Fi — more mature smart-control ecosystem
- Larger US dealer network for parts and warranty service
- Recirculation pump integration — built-in option on Rinnai SE+
- Higher-flow models available — Rinnai goes to 11+ GPM
Where Westinghouse leads
- 30-40% lower pricing for similar specs
- 96% TE matches Rinnai\'s top efficiency
- 15-year heat exchanger warranty matches Rinnai
- Direct-to-consumer availability on Home Depot online, Amazon
The contractor-relationship factor
For most homeowners, the deciding factor isn\'t the unit itself — it\'s whether your installing contractor stocks and supports Westinghouse. Many plumbers default to Rinnai because:
- Familiar with the platform
- Parts immediately available from local distributors
- Wholesale pricing favorable through Rinnai-channel buyer programs
- Customer perceives Rinnai as "the" gas tankless brand
If your contractor isn\'t Westinghouse-familiar, getting them to install and service Westinghouse requires negotiation. If you have flexibility on installer choice, Westinghouse saves $300-500 on equivalent spec.
Which to choose
- Cost-conscious + flexible on installer: Westinghouse WGRGH
- Contractor preference dominates: Rinnai
- Want Control-R Wi-Fi smart control: Rinnai
- Premium recirculation install: Rinnai SE+
- Standard install + want best value: Westinghouse
Bottom line
Spec-for-spec comparison favors Westinghouse on price; Rinnai wins on contractor ecosystem and smart-control maturity. For DIY-purchase + flexible installer selection, Westinghouse is the value play. For convenience and contractor familiarity, Rinnai justifies the premium.