Navien NFB700-500CvsRBI WATER HEATERS RB0500X
Side-by-side commercial boiler comparison
Navien NFB700-500C
Thermal Efficiency
97.5%
Input Rate
499MBTU/hr
Turndown Ratio
12.00
Application
Indoor
RBI WATER HEATERS RB0500X
Thermal Efficiency
98%
Input Rate
500MBTU/hr
Turndown Ratio
10.00
Application
Outdoor
Key differences
Both models are closely matched on thermal eff: 97.5 vs 98.0 %. The RBI WATER HEATERS RB0500X is larger at 500 MBTU/hr versus 499 MBTU/hr.
Performance
| Spec | Navien | RBI WATER HEATERS |
|---|---|---|
| Thermal Efficiency(%) | 97.5 | 98 |
| Full-Load Input Rate(MBTU/hr) | 499 | 500 |
| Turndown Ratio | 12.00 | 10.00 |
Configuration
| Spec | Navien | RBI WATER HEATERS |
|---|---|---|
| Application | Indoor | Outdoor |
| Control Type | Multi-stage | Multi-stage |
| Model Name | NFB700-500C | Encore Outdoor Series |