

CGi
*Note: Weil-McLain is phasing out production of the CGi as per federal government efficiency standards set to take effect Jun. 30. Contractors can continue to purchase and install CGi boilers after Jun. 30, and parts will be available for at least 20+ years. Weil-McLain is building up its inventory of CGi boilers prior to the cut-off date but they will only be available while supplies last. Learn more.
Ideal For:
- Residential chimney or sidewall venting
- Retrofit applications
- Easy installation
- Category: Residential
- Product Type: Water
- Fuel Type:
Natural Gas
Propane
(Conversion Kit Needed) - Material: Cast Iron
- Input MBH: 50, 60, 90, 120, 167, 200, 233 MBH
- AFUE: Up to 85.1%
- Output MBH
42, 51, 76, 100, 140, 167, 194 - Vent Category & Material:
Cat. 1-B-Vent / Cat. 3-AL29-4C
*Check local code / inspectors for acceptance - Warranty:
Residential
20 yr Heat Exchanger / 2 yr parts
Commercial
10 yr Heat Exchanger / 1 yr parts - Notes:
Chimney or Sidewall vent. For Cat. 1 venting increase from 3 to 4" up to CGI-3 and 3 to 5" for all other sizes.