Weil-McLain 383900174 - Natural Gas Combi Boiler, 150K BTU, 100K BTU Output, 95% AFUE
Weil-McLain 383900174 - Natural Gas Combi Boiler, 150K BTU, 100K BTU Output, 95% AFUE
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The Weil-McLain ECOTEC Combi natural gas boiler (part number 383900174) supplies both space heating and domestic hot water from a single compact appliance. Rated at 150K BTU input with a 100K BTU heating output, this unit delivers a 95% AFUE operating efficiency for hydronic systems. It provides on-demand domestic hot water at a rate of up to 5.4 GPM.
Combination boilers integrate space heating and instantaneous domestic hot water production into one hydronic platform. Utilizing a durable stainless steel firetube heat exchanger, the unit transfers thermal energy from natural gas combustion directly into circulating system water to maintain steady, efficient heating delivery.
Key Performance Features:
- Heating Capacity: Delivers 150K BTU input and 100K BTU output for hydronic space heating demands.
- High Efficiency: Rated at 95% AFUE to maximize heat output per unit of fuel consumed.
- Firetube Heat Exchanger: Built with stainless steel firetube construction for effective heat transfer.
- Domestic Hot Water: Provides on-demand hot water production at a flow rate of 5.4 GPM.
- Fuel Configuration: Designed for natural gas operation within hydronic heating configurations.
Application: Weil-McLain ECOTEC Combi series hydronic heating systems. Confirm this part number against your existing equipment specifications, or send your model and serial number to National Boiler Supply to verify before ordering.
| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 383900174 |
| Model Designation | ECOTEC Combi |
| Heat Exchanger Material | Stainless Steel Firetube |
| AFUE Efficiency | 95% |
| Domestic Hot Water Rate | 5.4 GPM |
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