Product Description
The Weil-Mclain 672619218697 is a WTGOTM Series 4 hot water oil boiler designed for residential heating applications. It delivers both space heating and domestic hot water heating through a dedicated water-only system built around durable cast iron sections. With an input rating of 98 MBH and an AFUE of 85.3%, this unit provides reliable, fuel-efficient performance for homes that rely on oil-fired heating systems. Cast iron construction is a trusted standard in the boiler industry, known for its long service life and resistance to thermal stress. This boiler is floor-mounted and connects to a natural draft vent system, making it well suited for replacement or new installation projects in residential settings. The unit ships with a Taco 007e circulator included, which handles hot water distribution throughout the heating loop. A low water cutoff and full water trim are also included as standard equipment, ensuring safe and code-compliant operation right out of the box. The burner is sold separately and is compatible with Carlin, Beckett, or Aiello oil burners, giving HVAC technicians flexibility in matching the right burner to the job. The quick-open top and swing-away burner door provide full chamber access, which reduces service time during annual tune-ups and inspections. Two flue outlets on the rear and top of the unit allow for complete venting flexibility, which is especially useful in tight mechanical rooms or when working around existing vent configurations. Supply and return pipe connections are 1.5 inches, making this boiler compatible with standard residential hot water piping layouts. The unit operates on 120V single-phase power and has a flow rate of 0.95 gallons per hour. ASME certified, CSA certified, and UL listed. The WTGOTM Series 4 was updated in 2021 with a new Slate Gray color. It is Energy Star Compliant when ordered with an optional vent damper kit sold separately.
- Cast iron sectional construction for long-term durability and thermal efficiency in residential oil-fired heating systems
- Includes Taco 007e circulator, LWCO, and full water trim for complete installation readiness
- Quick-open top and swing-away burner door for fast, unobstructed access during service and inspection
Product Highlights
The Weil-Mclain WTGOTM Series 4 is a cast iron oil boiler built for residential use, delivering 98 MBH input and 85.3% AFUE with a Taco 007e circulator included. Its flexible venting options, standard safety trim, and full chamber access make it a practical choice for HVAC professionals handling oil boiler installations or replacements.
Product Information
Standard Information
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Brand: WEIL-MCLAIN
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Manufacturer Part Number: 672619218697
Technical Specifications
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Collection: WTGOTM Series 4
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Application: Residential
AFUE: 85.3%-
Input (MBH): 98 MBH
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BTU Heat Rating: 115000 BTU/h
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Fuel Type: Oil
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Material: Cast Iron
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Installation Type: Floor Mount
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Vent Type: Natural Draft Vent
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Condensing: No
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Flow Rate: 0.95 gph
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Supply Pipe Connection Size: 1.5 inches
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Return Pipe Connection: 1.5 inches
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Volts: 120V
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Phase: Single Phase
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Height: 35.625 inches
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Width: 20.25 inches
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Depth: 16.875 inches
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ASME Certified: Yes
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CSA Certified: Yes
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UL Listed: Yes
