| AFUE Rating | : | 94% |
| DOE Heating Capacity | : | 139 MBH |
| Input Capacity | : | 155 MBH |
| Series | : | Ultra 4 |
| Vent Type | : | PVC/CPVC/PP |
| Water Volume | : | 1.17 Gal. |
Weil-McLain 383-500-735 Ultra 155 High Efficiency Condensing Series 4 Gas-Fired Water Boiler
- Cast Aluminum Nano-Coated Heat Exchanger
- Nano-coating provides antiadhesive and anticorrosion properties
- Modulates with 5:1 turn-down ration
- Outdoor reset and domestic hot water priority
- High grade stainless steel burner features quiet operation
- U-Control gives you the power for easy set-up and maintenance
- Temperature management for up to 3 different set points
- Control multiple boilers from a single panel
- Capable to vent with PVC, CPVC and PP
