U.S. Boiler Company CTD650CvsVelocity Boiler Works PHNTM600C
Side-by-side commercial boiler comparison
U.S. Boiler Company CTD650C
Thermal Efficiency
97%
Input Rate
650MBTU/hr
Turndown Ratio
10.00
Application
Indoor
Velocity Boiler Works PHNTM600C
Thermal Efficiency
95%
Input Rate
625MBTU/hr
Turndown Ratio
5.00
Application
Indoor
Key differences
Both models are closely matched on thermal eff: 97.0 vs 95.0 %. The U.S. Boiler Company CTD650C is larger at 650 MBTU/hr versus 625 MBTU/hr. Overall, the U.S. Boiler Company CTD650C sits higher in the category, ranking above 38% of certified commercial boilers.
Performance
| Spec | U.S. Boiler Company | Velocity Boiler Works |
|---|---|---|
| Thermal Efficiency(%) | 97 | 95 |
| Full-Load Input Rate(MBTU/hr) | 650 | 625 |
| Turndown Ratio | 10.00 | 5.00 |
Configuration
| Spec | U.S. Boiler Company | Velocity Boiler Works |
|---|---|---|
| Application | Indoor | Indoor |
| Control Type | Multi-stage | Multi-stage |
| Model Name | Citadel | PHNTM |