Description

Weil-McLain CGa-7 Series 3 200,000 BTU Cast Iron Natural Gas Boiler

Weil-McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.

Features

Natural draft, silent operation
Integrated Boiler Control Module with intermittent electronic ignition system and indicator/diagnostic lights
Compact design saves valuable living space
Built-in low water cut off functionality
Stainless steel burners for quieter ignition, longer life, and improved combustion
Gas fired water boiler with cast iron sections
Easily accessible controls, vertical flueways, and top cleaning for easy and quick servicing

What Our Experts Think

Reliable heat delivery: The Weil-McLain CGa-7 Series 3 200,000 BTU Cast Iron Natural Gas Boiler offers consistent, steady hydronic heating well-suited for large homes, multifamily properties, and light commercial spaces.

Proven cast-iron durability: Cast-iron sections provide excellent thermal mass and corrosion resistance, delivering long-lasting performance and smooth, even heat output.

Straightforward design: Conventional boiler architecture makes service, troubleshooting, and maintenance easier for HVAC technicians.

Trusted brand heritage: Weil-McLain’s CGa series has a strong track record for reliability and dependable operation in traditional heating systems.

Product Q&A

What type of boiler is this?
A cast-iron, natural gas-fired hydronic boiler that heats water for baseboard, radiator, or radiant floor systems.

What is the heating capacity?
200,000 BTU/hour — ideal for large spaces and high heating load requirements.

Does it require special venting?
Yes — conventional gas boilers require proper chimney or flue venting installed per code and manufacturer instructions.

Is this suitable for new construction?
Yes — particularly where robust, long-lasting cast-iron heat is preferred over condensing units.

Maintenance Tips

Annual professional inspection: Have a licensed HVAC technician service the boiler before each heating season — checking burner, heat exchanger, combustion, and controls.

Monitor pressure and water level: Keep system pressure within manufacturer-recommended ranges and check expansion tank performance.

Bleed radiators/baseboards: Release trapped air as needed to maintain efficient heat distribution.

Inspect venting and combustion air: Clear any blockages and ensure airtight flues and intake pathways.

Check for leaks: Regularly examine valves, fittings, and pipe connections for signs of water or gas leaks.

Flush system periodically: Remove accumulated sediment and scale to preserve efficiency and extend service life.

Weil-McLain CGa-7 Series 3 200,000 BTU Cast Iron Natural Gas Boiler-Schneller Versand

Description