Eccotemp and Rinnai compete head-to-head in the tankless propane 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
Rinnai is the premium choice for primary residence whole-house tankless. Eccotemp is the budget choice for outdoor showers, cabins, and supplementary applications.
Where Eccotemp wins
- Dramatically lower upfront cost
- Portable models for outdoor/RV/cabin use
- No-permit indoor models in some configurations
- Battery-powered ignition on portable units
Where Rinnai wins
- Class-leading heat exchanger durability
- Industry-best dealer/service network
- Higher BTU output for whole-house demand
- Better cold-water temperature rise capability
- Significantly longer warranty period
Direct spec comparison
| Factor | Eccotemp | Rinnai |
|---|---|---|
| Primary category positioning | Budget portable + indoor propane tankless | Premium tankless market leader |
| Typical warranty (residential) | 1-year unit; 2-year on some indoor models | 10-12 year heat exchanger |
| Typical lifespan | 5-10 years | 15-20 years |
| Price tier | $150-900 | $900-2500 |
| Dealer network | Amazon, RV retailers, Home Depot | Plumbing supply, Home Depot, authorized installers |
| Parts availability | Eccotemp direct, limited aftermarket | Rinnai-direct, broad availability, certified service network |
Choose Eccotemp if
Outdoor shower, RV upgrade, off-grid cabin, or supplementary residential use where Eccotemp's portable models genuinely serve the need.
Choose Rinnai if
Primary residential whole-house tankless — Rinnai's longer warranty and stronger service network are worth the price premium for a daily-use install.
Honest bottom line
Different price tiers solving different problems. Eccotemp = portable/off-grid; Rinnai = whole-house primary.