U.S. Boiler Company CTD650C-OvsWeil-McLain SVF 600
Side-by-side commercial boiler comparison
U.S. Boiler Company CTD650C-O
Thermal Efficiency
97%
Input Rate
650MBTU/hr
Turndown Ratio
10.00
Application
Outdoor
Weil-McLain SVF 600
Thermal Efficiency
98%
Input Rate
600MBTU/hr
Turndown Ratio
12.00
Application
Indoor
Key differences
Both models are closely matched on thermal eff: 97.0 vs 98.0 %. The U.S. Boiler Company CTD650C-O is larger at 650 MBTU/hr versus 600 MBTU/hr. Overall, the Weil-McLain SVF 600 sits higher in the category, ranking above 91% of certified commercial boilers.
Performance
| Spec | U.S. Boiler Company | Weil-McLain |
|---|---|---|
| Thermal Efficiency(%) | 97 | 98 |
| Full-Load Input Rate(MBTU/hr) | 650 | 600 |
| Turndown Ratio | 10.00 | 12.00 |
Configuration
| Spec | U.S. Boiler Company | Weil-McLain |
|---|---|---|
| Application | Outdoor | Indoor |
| Control Type | Multi-stage | Multi-stage |
| Model Name | Citadel | SVF 600 |