Velocity Boiler Works PHX800C-OvsWeil-McLain SVF 850
Side-by-side commercial boiler comparison
Velocity Boiler Works PHX800C-O
Thermal Efficiency
97%
Input Rate
800MBTU/hr
Turndown Ratio
10.00
Application
Outdoor
Weil-McLain SVF 850
Thermal Efficiency
97.5%
Input Rate
850MBTU/hr
Turndown Ratio
11.00
Application
Indoor
Key differences
Both models are closely matched on thermal eff: 97.0 vs 97.5 %. The Weil-McLain SVF 850 is larger at 850 MBTU/hr versus 800 MBTU/hr. Overall, the Weil-McLain SVF 850 sits higher in the category, ranking above 84% of certified commercial boilers.
Performance
| Spec | Velocity Boiler Works | Weil-McLain |
|---|---|---|
| Thermal Efficiency(%) | 97 | 97.5 |
| Full-Load Input Rate(MBTU/hr) | 800 | 850 |
| Turndown Ratio | 10.00 | 11.00 |
Configuration
| Spec | Velocity Boiler Works | Weil-McLain |
|---|---|---|
| Application | Outdoor | Indoor |
| Control Type | Multi-stage | Multi-stage |
| Model Name | Phantom-XL | SVF 850 |