Weil-mclain 672619214170 Cgatm Cast Iron Hot Water Boiler 141000 Btu 84% Afue Natural Gas Intermittent Pilot with Chimney Vent

Product Description

The Weil-McLain 672619214170 is a CGaTM series cast iron hot water boiler designed for residential heating applications using natural gas. This floor-mounted unit delivers a BTU heat rating of 141000 BTU per hour with an input rating of 166000 BTU and an AFUE of 84%, making it a reliable workhorse for whole-home hydronic heating systems. The boiler uses intermittent electronic ignition with a damper, eliminating the need for a standing pilot light and improving fuel efficiency during off cycles. It vents naturally through a vertical chimney vent or existing masonry chimney, which simplifies installation in homes already equipped with a traditional flue system. The cast iron sectional construction is a proven design trusted by HVAC professionals for its durability and long service life. Cast iron holds heat well and resists corrosion in hydronic systems, making it a preferred material for residential boilers in demanding climates. Stainless steel burners provide quieter ignition, more consistent combustion, and extended burner life compared to standard steel burners. The unit operates on 24V single-phase power and connects to the supply and return piping via 1-1/4 inch connections. The system capacity is 3.3 gallons and it meets ASME H pressure vessel standards, which is a key requirement for commercial and residential boiler installations. The CGaTM series is engineered to replace the CA Series 2 model, giving HVAC contractors a direct upgrade path for retrofit and replacement jobs. With a depth of 23-1/4 inches, a height of 60-7/8 inches, and a width of 19 inches, the unit fits into standard boiler room footprints. This boiler is well-suited for hydronic radiant floor heating, baseboard heating, and traditional radiator systems throughout residential applications.

• Cast iron sectional construction for long-lasting durability in residential hydronic heating systems
• Intermittent electronic ignition with damper eliminates standing pilot light and reduces standby fuel loss
• Stainless steel burners deliver quieter startup, more complete combustion, and longer burner service life

Product Highlights

The Weil-McLain 672619214170 CGaTM boiler combines cast iron reliability with intermittent electronic ignition and chimney vent compatibility, giving HVAC professionals a proven natural gas hot water boiler for residential replacement and new installation projects.

Product Information

Standard Information

• Brand: WEIL-MCLAIN
• Manufacturer Part Number: 672619214170

Technical Specifications

• AFUE: 84%
• Application: Residential
• BTU Input: 166000 BTU
• BTU Heat Rating: 141000 BTU per hour
• Boiler Type: Gas Boiler
• Capacity: 3.3 gallons
• Collection: CGaTM
• Depth: 23-1/4 inches
• Fuel Type: Natural Gas
• Height: 60-7/8 inches
• Ignition System: Intermittent Electronic Ignition
• Input: 166 MBH
• Installation Type: Floor Mount
• Material: Cast Iron
• Phase: Single Phase
• Return Pipe Connection: 1-1/4 inches
• Supply Pipe Connection Size: 1-1/4 inches
• ASME Rating: ASME H
• Vent Type: Chimney Vent
• Voltage: 24V
• Width: 19 inches