Bosch SSB 800vsNavien NFB700-800C
Side-by-side commercial boiler comparison
Bosch SSB 800
Thermal Efficiency
96%
Input Rate
798MBTU/hr
Turndown Ratio
10.00
Application
Indoor
Navien NFB700-800C
Thermal Efficiency
97.5%
Input Rate
799MBTU/hr
Turndown Ratio
12.00
Application
Indoor
Key differences
Both models are closely matched on thermal eff: 96.0 vs 97.5 %. The Navien NFB700-800C is larger at 799 MBTU/hr versus 798 MBTU/hr. Overall, the Navien NFB700-800C sits higher in the category, ranking above 84% of certified commercial boilers.
Performance
| Spec | Bosch | Navien |
|---|---|---|
| Thermal Efficiency(%) | 96 | 97.5 |
| Full-Load Input Rate(MBTU/hr) | 798 | 799 |
| Turndown Ratio | 10.00 | 12.00 |
Configuration
| Spec | Bosch | Navien |
|---|---|---|
| Application | Indoor | Indoor |
| Control Type | Multi-stage | Multi-stage |
| Model Name | SSB 800 | NFB700-800C |