Product Description
The Weil-McLain 672619218581 is a cast iron hot water oil boiler from the WGOTM Series 4 lineup, designed for residential floor-mount installations where reliable, high-efficiency oil-fired heating is required. This unit delivers a rated input of 171 MBH and an Annual Fuel Utilization Efficiency of 86.1% AFUE, making it a dependable choice for HVAC contractors and heating professionals working on residential heating systems. The boiler is a dedicated water-only unit, meaning it does not include a tankless heater or cover plate, keeping the system focused entirely on space heating performance. It ships with a Taco 007 circulator included, reducing the need for additional components during installation. The burner is sold separately, with compatibility for Carlin, Beckett, or Aiello oil burners, giving installers flexibility to match the burner to the specific job requirements. The WGOTM Series 4 features a quick-open top and a swing-away burner door that provides full combustion chamber access, improving visibility during inspection and routine servicing. Two flue outlets are positioned on the rear and top of the unit, offering complete venting flexibility to accommodate a variety of chimney vent configurations. The recessed target wall design protects internal components from damage during flue brush cleaning. This boiler includes a Low Water Cut-Off and full water trim as standard equipment, meeting safety and code requirements straight from the factory. It is AHRI certified, ASME H rated, and UL Listed. It is also Energy Star qualified when ordered with the optional vent damper kit. The slate gray cabinet finish, updated in 2021, provides a clean, professional appearance. The supply and return pipe connections are both 1.5 inches, and the unit operates on 120V single-phase power. Dimensions are approximately 35.625 inches tall, 23.125 inches deep, and 20.25 inches wide.
- Cast iron sectional construction delivers long service life and excellent heat retention for residential hot water heating systems
- Swing-away burner door and quick-open top provide full chamber access for fast, easy inspection and servicing
- Dual flue outlets on rear and top allow flexible chimney vent configurations to suit a wide range of installation layouts
Product Highlights
The Weil-McLain WGOTM Series 4 cast iron hot water oil boiler combines 86.1% AFUE efficiency with durable cast iron construction, factory-included safety trim, and flexible burner and venting compatibility for straightforward residential heating installations.
Product Information
Standard Information
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Brand: WEIL-MCLAIN
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Manufacturer Part Number: 672619218581
Technical Specifications
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Collection: WGOTM Series 4
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Boiler Type: Cast Iron Boiler
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Application: Residential
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Fuel Type: Oil
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Media: Hot Water
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AFUE: 86.1%
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Input Rating: 171 MBH
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BTU Heat Rating: 171,000 BTU/h
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Net I=B=R Capacity: 184,000 BTU
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Gross BTU Output: 196,000 BTU
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Flow Rate: 1.75 gph
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Installation Type: Floor Mount
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Vent Type: Chimney Vent
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Condensing: No
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Supply Pipe Connection Size: 1.5 inches
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Return Pipe Connection Size: 1.5 inches
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Voltage: 120V
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Phase: Single Phase
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Ignition System: Indirect Fired
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Material: Cast Iron
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Height: 35.625 inches
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Width: 20.25 inches
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Depth: 23.125 inches
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ASME Rating: ASME H
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UL Listed: Yes
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AHRI Certified: Yes
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Energy Star Compliant: Yes (with optional vent damper kit)
