Product Description
The Weil-McLain 672619218567 is a WGOTM Series 4 cast iron hot water oil boiler designed for residential floor-mount installation. This unit delivers 122 MBH input capacity and operates at 86.2% AFUE, making it a reliable and efficient choice for heating professionals working on oil-fired hydronic heating systems. The boiler is built with durable cast iron sections that provide long service life and consistent heat transfer. It is a dedicated water-only unit, meaning it does not include a tankless heater or cover plate, keeping the system focused on space heating performance. The Taco 007 circulator is included to move hot water through the heating loop efficiently. The burner is sold separately, giving installers the flexibility to select a compatible Carlin, Beckett, or Aiello oil burner based on job requirements. A quick-open top and swing-away burner door provide full combustion chamber access, which simplifies inspection and routine servicing. Two flue outlets located on the rear and top of the unit allow for complete venting flexibility, making it easier to fit the boiler into a variety of mechanical room configurations. The recessed target wall design helps protect internal components from damage during flue brush cleaning. The unit includes a low water cutoff and full water trim as standard equipment. It is AHRI certified and carries a Net I=B=R capacity rating of 126,000 BTU. The WGOTM Series 4 is UL listed and ASME rated. It features a natural draft vent system and operates on 120V single-phase power. Supply and return pipe connections are both 1-1/2 inches. The unit measures 35-5/8 inches in height, 20-1/4 inches in width, and 16-7/8 inches in depth. Ordering with an optional vent damper kit can qualify the unit for Energy Star certification. Finished in a modern Slate Gray color introduced in 2021, this boiler suits both new installations and replacements in residential oil-fired hydronic systems.
- Cast iron construction provides durability and long service life in residential oil-fired hot water heating systems
- Quick-open top and swing-away burner door allow easy inspection and servicing of the full combustion chamber
- Two rear and top flue outlets offer complete venting flexibility for a wide range of mechanical room layouts
Product Highlights
The Weil-McLain WGOTM Series 4 cast iron oil boiler delivers 122 MBH input capacity with 86.2% AFUE efficiency and includes the Taco 007 circulator, full water trim, and LWCO for a complete residential hydronic heating installation. Its flexible venting, durable cast iron build, and burner-agnostic design make it a practical choice for HVAC professionals.
Product Information
Standard Information
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Brand: WEIL-MCLAIN
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Manufacturer Part Number: 672619218567
Technical Specifications
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Collection: WGOTM Series 4
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Application: Residential
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Material: Cast Iron
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Fuel Type: Oil
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Input Capacity: 122 MBH
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AFUE: 86.2%
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Net I=B=R Capacity: 126,000 BTU
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BTU Heat Rating: 146,000 BTU/h
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Vent Type: Natural Draft Vent
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Installation Type: Floor Mount
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Supply Pipe Connection Size: 1-1/2 inches
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Return Pipe Connection Size: 1-1/2 inches
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Height: 35-5/8 inches
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Width: 20-1/4 inches
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Depth: 16-7/8 inches
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Voltage: 120V
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Phase: Single Phase
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Condensing: No
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ASME Certified: Yes
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CSA Certified: Yes
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UL Listed: Yes
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AHRI Certified: Yes
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Flow Rate: 1.2 GPH
