Williamson-Thermoflo FS-155-N-* Information
| Boiler | Williamson-Thermoflo FreeStyle |
| Model Number | FS-155-N-* |
| Root Product Name | Williamson-Thermoflo FS-155-N- |
| Sold In | United States, Canada |
| Date On Market | July 28, 2016 |
| Date Qualified | November 8, 2021 |
| Model ID | ES_1090273_FS-155-N-*_03072018200538_1888711 |
| PD ID | 2312380 |
Boiler Features
| Product Type | Boiler |
| Fuel Type | Natural Gas,Propane Gas |
| Annual Fuel Utilization Efficiency (AFUE) | 94 |
| Boiler Can Integrate Hot Water Heating? | Yes |
| Meets Most Efficient Status | No |
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