Weil-Mclain 381359000 Cgi-25 42K BTU (25) 381357856

Product Description

The Weil-McLain 381359000 Cgi-25 is a cast-iron hot water gas boiler with power venting and 84% AFUE. It features an insulated extended steel jacket, integrated boiler control module with intermittent electronic ignition, and an integrated low-water cutoff. The unit includes a circulator pump and supports natural and induced draft venting, with multiple connection sizes and floor mounting for residential applications.

• Cast iron heat exchanger, insulated extended steel jacket, 84% AFUE
• Power vent design supporting natural and induced draft venting; integrated boiler control with intermittent ignition and diagnostics
• Includes circulator pump, integrated low-water cutoff, and built-in air separator

Product Highlights

42,000 BTU class cast-iron hot water boiler with power venting, integrated controls, and included pump

Product Information

Standard Information

• Brand: WEIL-MCLAIN
• Manufacturer Part Number: 381359000
• Country of Origin: United States

Technical Specifications

• Brand: Weil-McLain
• MPN: 381359000
• Model/Series: CGi-25
• Fuel Type: Natural Gas
• Vent Type: Power vent (supports natural and induced draft venting)
• AFUE: 84%
• Maximum Input Capacity: 48,000 BTU
• DOE Heating Capacity: 41,000 BTU
• Net IBR Capacity: 36,000 BTU
• BTU (nameplate reference): 42,000 BTU
• Heat Exchanger Material: Cast iron
• Includes Pump: Yes
• Modulating/Staging: Staging
• Combustion Type: Conventional
• Ultra Low NOx Emissions: No
• Certifications: ASME certified; CSA listed
• AHRI Reference Number: 205261850
• AHRI/UPC Reference: 205261850 / 381359000
• Dimensions: Height 28 3/8 Inches x Width 10 Inches x Depth 23 1/4 Inches
• Weight: 200 Pounds
• Supply Connection: 3/4 Inch
• Return Connection: 3/4 Inch
• Gas Connection Size: 1/2 Inch
• Flue Connection Size: 3 Inches
• Mount Type: Floor
• Medium: Hot Water
• DHW Production: No
• Maximum Altitude: 2000 Feet
• Minimum Altitude: 0 Feet
• Assembly Type: Packaged
• Tank Capacity: 1.5 gallons
• Country of Origin: United States
• Replacement MPN: 381357856