Viessmann CI2-750vsWeil-McLain SVF 725
Side-by-side commercial boiler comparison
Viessmann CI2-750
Thermal Efficiency
97.8%
Input Rate
750MBTU/hr
Turndown Ratio
10.00
Application
Indoor
Weil-McLain SVF 725
Thermal Efficiency
97.7%
Input Rate
725MBTU/hr
Turndown Ratio
10.00
Application
Indoor
Key differences
Both models are closely matched on thermal eff: 97.8 vs 97.7 %. The Viessmann CI2-750 is larger at 750 MBTU/hr versus 725 MBTU/hr.
Performance
| Spec | Viessmann | Weil-McLain |
|---|---|---|
| Thermal Efficiency(%) | 97.8 | 97.7 |
| Full-Load Input Rate(MBTU/hr) | 750 | 725 |
| Turndown Ratio | 10.00 | 10.00 |
Configuration
| Spec | Viessmann | Weil-McLain |
|---|---|---|
| Application | Indoor | Indoor |
| Control Type | Multi-stage | Multi-stage |
| Model Name | CI2-750 | SVF 725 |