Weil-McLain LP & Natural Gas Boilers
Key Components
- A negative regulated gas valve that Precisely delivers gas to the boiler.
- A variable speed motor that matches combustion output to your heating needs.
- System intelligence with the Ultra Control Module which maintains proper, efficient and Precise Hydronic heat through inputs of all system Data.
- A cast aluminum mono block heat exchanger designed to operate in low temperature condensing applications.
- A cast aluminum mono block heat exchanger designed to operate in low temperature condensing applications.
- Pre-mix stainless steel burner designed for perfect firing rate modulation, efficiency, clean combustion and quiet operation.
| Model | A.G.A. Input (MBH) | DOE Heating Capacity (MBH) | Net I=B=R Ratings (MBH) | Weil-McLain Low Temp Seasonal Efficiency | Min. Chimney Size |  Roll Mouse over picture for larger image |
|---|---|---|---|---|---|---|
| UG80 | 80 | 71 | 62 | 98.1 | 3 in. PVC/ABS | |
| UG105 | 105 | 94 | 81 | 98.1 | 3 in. PVC/ABS | |
| UG155 | 155 | 71 | 123 | 98.0 | 3 in. PVC/ABS | |
| UG230 | 230 | 207 | 183 | 98.0 | 3 or 4 in. PVC/ABS | |
| UG310 | 310 | 289 | 252 | 95.6 | 4 in.PVS/ABS |
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