| Application: | Heating |
|---|---|
| Fuel Type: | Natural Gas |
| Efficiency: | 84% |
| Boiler Type: | Standard |
| System Type: | Hydronic (Water) |
| Width (Inches): | 19" |
| Vent Type: | Power Vent Stainless Steel |
| Height (Inches): | 28.375" |
| Features: | EI/Spark Ignition |
| Depth (Inches): | 23-1/4" |
| Vent Size: | 5" |
| Water Connection: | 1-1/4" |
| Gas Connection: | 1/2" |
| BTU Input: | 158000 |
| DOE Rating: | 135000 |
| IBR Rating: | 117000 |
| BTU Output: | 117000 |
| Warranty: | 20 Year (Heat Exchanger)/ 2 Year (Parts) |

Replacement Parts
SKU: 381-359-008
Brand: Weil-McLain
This unit is available in an LP version, the part number is 381-357-914. There is also a conversion kit available for NG to LP, the part number is 510-811-012.
The way I plumbed my boiler allowed me to direct the water flow in any direction to assist in purging the air from the system. You will also still need to bleed each radiator individually.
This unit can produce a maximum of 122,000 BTU's. To get an estimate of how many BTU's you need in your home, please use our BTU Calculator ( http://www.pexsupply.com/pex/control/BTUCalculator ). For a precise number, we would recommend that you perform a heat loss calculation.