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Weil-Mclain 381-359-012 CGI-8 222 Input MBtu 84% AFUE Cast Iron Natural Gas Water Boiler Series 4 with Taco T-007 Pump


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Product details

Weil-Mclain 381-359-012 CGI-8 222 Input MBtu 84% AFUE Cast Iron Natural Gas Boiler Water Series 4 with Taco T-007 Pump

  • Gas fired water boiler with cast iron sections
  • Natural draft and direct exhaust capability
  • Can be used with natural or propane gas
  • Now with built-in low water cut off functionality
  • Compact design saves valuable living space
  • No vertical draft hood and no mechanical vent damper
  • Intermittent electronic ignition with standard components for easy servicing
  • 84% AFUE




  • Integrated boiler control module with intermittent electronic ignition system & indicator / diagnostic lights
  • Integrated low-water cutoff, with test button
  • Combination pressuretemperature gauge
  • Two-piece, top jacket panel
  • Insulated extended steel jacket
  • Cast iron sections with built-in air separator
  • Radiation plates
  • Steel base
  • Inducer assembly (with cover—sizes 25–6 only)
  • Flue gas collector / transition assembly
  • Combination gas valve for 24 volt
  • Wiring harness
  • Air pressure switch
  • Non-linting pilot burner
  • High-grade stainless steel burners
  • 40 VA transformer
  • Electrical junction box
  • Rollout thermal fuse element
  • High-limit temperature control
  • Circulator (when ordered) − Sizes 25–5: Taco 007e − Sizes 6–8: Taco 007
  • 30 PSI ASME relief valve (boiler sections tested for 50 PSI working pressure)
  • Drain valve


  • CGi AL29-4C stainless steel vent starter kit
  • Outdoor reset kit (part #381-356-586) Low cost, simple plug-in sensor — check local utility program for possible rebate.
  • Zone interface harness kit (part #381-356-585) Used to communicate between an existing relay panel wired into the system and boiler, to separate DHW from space heating demands.
  • Expansion tank package —  shipped in separate carton (expansion tank, fill & check valve, auto air vent and fittings)
  • High Altitude Kits
  • Weil-McLain five- and ten-year homeowner protection plan


  • Residential: 20 Years Heat Exchanger; 2 Years Parts
  • Commercial: 10 Years Heat Exchanger; 1 Year Parts
See All Weil-McLain Products

Specification Sheet

Basic Information
MPN ? Manufacturer Part Number 381-359-012
UPC / GTIN 672619214354
Manufacturer Weil-McLain
Series ? A manufacturer's grouping of items that match, coordinate, or complement each other. CGI Series 4
Dimensions and Measurements
Weight ? Weight 420.00
BTU Input 222,000
AFUE 84%
Tank Capacity 4.4 gallons
Height (Inches) ? The vertical measurement from bottom to top, measured in inches. 28-3/8"
Width (Inches) ? The horizontal measurement from left to right, measured in inches. 25"
Characteristics and Features
Material ? The material(s) used in the construction of the product. Cast Iron
Boiler Type Residential
Fuel Type Natural Gas
Venting Induced Draft
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