Weil-McLain ULTRA 299-CTvsWilliamson-Thermoflo GWC-175-N-T
Side-by-side boiler comparison
Weil-McLain ULTRA 299-CT
AFUE
92%
Fuel
Natural Gas, Propane Gas
Type
Boiler
Hot Water
Can integrate
Williamson-Thermoflo GWC-175-N-T
AFUE
91%
Fuel
Natural Gas, Propane Gas
Type
Boiler
Hot Water
Can integrate
Key differences
Both models are closely matched on afue: 92.0 vs 91.0 %. The Weil-McLain ULTRA 299-CT is larger at 92 % versus 91 %.
Efficiency
| Spec | Weil-McLain | Williamson-Thermoflo |
|---|---|---|
| AFUE(%) | 92 | 91 |
| Fuel Type | Natural Gas, Propane Gas | Natural Gas, Propane Gas |
| Can Integrate Hot Water Heating | Yes | Yes |
Configuration
| Spec | Weil-McLain | Williamson-Thermoflo |
|---|---|---|
| Product Type | Boiler | Boiler |
| Model Name | ULTRA | GWC |