Weil-McLain 381-800-875 - Gas Steam Boiler, 125 MBH
Weil-McLain 381-800-875 - Gas Steam Boiler, 125 MBH
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The Weil-McLain 381-800-875 Gas Steam Boiler delivers reliable space heating with a rated input capacity of 125 MBH. Built with durable cast iron section construction, this unit provides dependable thermal energy transfer for low-pressure steam systems. It operates on natural gas and provides an 82% AFUE efficiency rating.
Gas steam boilers function by burning fuel to heat water within the internal heat exchanger until it turns into steam. This steam naturally rises through distribution piping to deliver heat directly to terminal units before condensing and cycling back to the vessel.
Key Performance Features:
- Input Capacity: Provides an AGA input rating of 125 MBH for steady heat generation.
- Heating Output: Delivers a 78 MBH Net IBR output to satisfy system steam requirements.
- Operating Efficiency: Operates at an 82% AFUE efficiency level for balanced fuel economy.
- Body Construction: Cast iron body construction provides dependable thermal retention and heat transfer.
- Fuel Source: Configured for operation with natural gas supplies.
Application: Weil-McLain steam heating installations requiring a 125 MBH natural gas boiler. Confirm the part number against your existing system 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) | 381-800-875 |
| AGA Input | 125 MBH |
| Net IBR Output | 78 MBH |
| AFUE Efficiency | 82% |
| Body Construction | Cast Iron |
| Fuel Type | Natural Gas |
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