Bosch SSB 1000vsViessmann CI2-1000
Side-by-side commercial boiler comparison
Bosch SSB 1000
Thermal Efficiency
96.1%
Input Rate
1024MBTU/hr
Turndown Ratio
10.00
Application
Indoor
Viessmann CI2-1000
Thermal Efficiency
97.7%
Input Rate
1000MBTU/hr
Turndown Ratio
10.00
Application
Indoor
Key differences
Both models are closely matched on thermal eff: 96.1 vs 97.7 %. The Bosch SSB 1000 is larger at 1024 MBTU/hr versus 1000 MBTU/hr. Overall, the Viessmann CI2-1000 sits higher in the category, ranking above 88% of certified commercial boilers.
Performance
| Spec | Bosch | Viessmann |
|---|---|---|
| Thermal Efficiency(%) | 96.1 | 97.7 |
| Full-Load Input Rate(MBTU/hr) | 1024 | 1000 |
| Turndown Ratio | 10.00 | 10.00 |
Configuration
| Spec | Bosch | Viessmann |
|---|---|---|
| Application | Indoor | Indoor |
| Control Type | Multi-stage | Multi-stage |
| Model Name | SSB 1000 | CI2-1000 |