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Weil Mclain Products

Weil Mclain 381355046

381-355-046 CGI-4 100,000 BTU Cast Iron Boiler, Spark Ignition, Natural Gas

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The product is not available for shipping from our warehouse. We have contacted the manufacturer and expect shipment to our warehouse within 48-72 Hours. It will then take a few more days to be delivered to you, depending on the way you requested it to be shipped.

Quick Specs: View More

  • Width: 13"
  • Height: 28-3/8"
  • Depth: 23-1/4"

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Discontinued No longer available.

This item has been replaced by:

Weil Mclain CGI Boilers are Gas fired water boiler with cast iron sections. These Weil Mclain Boilers offer direct vent capability and can be used with natural or propane gas. All units are factory-tested, and include a limited lifetime warranty on cast iron sections. The Compact design of these boilers saves valuable living space, there is no vertical draft hood and no mechanical vent damper. The boilers offer intermittent electronic ignition with standard components for easy servicing. Available at AppliancesConnection


 Weil Mclain CGI-4 - 74,000 BTU Output Cast Iron Boiler, Spark Ignition (Nat Gas) 381-355-046.


  • Includes Taco 007 Pump
  • C.S.A Input: 100 MBH
  • DOE Heating Capacity: 85 MBH
  • Net I=B=R: 74 MBH
  • DOE AFUE: 84%


  • Fuel Type: Natural Gas
  • Efficiency: 84%
  • System Type: Hydronic (Water)
  • Width: 13"
  • Features: Power Vent
  • Vent Size: 5"
  • Water Connection: 1"
  • Gas Connection: 1/2"
  • BTU Input: 100000
  • BTU Output: 74000.0
  • Warranty: Limited Lifetime on Cast Iron Sections/1-year on parts
  • Boiler Type: Standard
  • Height: 28-3/8"
  • Application: Heating
  • Depth: 23-1/4"
  • Vent Type: Stainless Steel

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  • Brand:Weil Mclain
  • SKU:381355046
  • UPC:672619136984
  • Stock Id:256041
  • Product Number:381355046


  • Fuel Type:Natural Gas
  • Vent Type:Stainless Steel
  • BTU Output:74000.0
  • BTU Input:100000
  • Efficiency:84%


  • Height:28-3/8"
  • Width:13"
  • Depth:23-1/4"

    Technical Details

  • Energy Star:No
  • Features:Power Vent
  • Warranty:Limited Lifetime on Cast Iron Sections/1-year on parts
  • Application:Heating
  • System Type:Hydronic (water)
  • Vent Size:5"
  • Water Connection:1"
  • Gas Connection:1/2"
  • Boiler Type:Standard
  • Weight:240.00 lbs