CGi
Gas Boiler Series 4
The Weil-McLain CGi Series 4 is a high-efficiency, gas-fired water boiler designed for both residential and light commercial applications. Featuring durable cast iron sections and an insulated steel jacket, it offers long-lasting performance and improved heat retention.
Features
DURABLE DESIGN
Gas fired water boiler with cast iron sections
Vent Options
Natural draft and direct exhaust capability
Flexibility
Can be used with natural or propane gas
Safety Built-In
Now with built-in low water cut off functionality
Compact Design
Compact design saves valuable living space
Simplified Venting
No vertical draft hood and no mechanical vent damper
Service Friendly
Intermittent electronic ignition with standard components for easy servicing
HIGH EFFICIENCY
84% AFUE
big on warmth, low on energy use
Engineered for comfort, designed for efficiency
Certified ENERGY STAR® and heat pump ready, this high-efficiency boiler delivers powerful, eco-friendly performance while keeping energy costs low.
Technical Specs
| MODEL | AFUE (%) | CSA INPUT (MBH) | NET (MBH) | DOE HEATING CAP. (MBH) | VENT SIZE (IN.) | NATURAL DRAFT VENTING (IN.) |
|---|---|---|---|---|---|---|
| CGi-25 | 84 | 48 | 35 | 41 | 3 | 4 |
| CGi-3 | 84 | 58 | 42 | 49 | 3 | 4 |
| CGi-4 | 84 | 90 | 66 | 77 | 3 | 5 |
| CGi-5 | 84 | 119 | 88 | 102 | 3 | 5 |
| CGi-6 | 84 | 158 | 117 | 135 | 3 | 5 |
| CGi-7 | 84 | 190 | 140 | 162 | 3 | 6 |
| CGi-8 | 84 | 222 | 164 | 189 | 3 | 6 |
Downloads
Product Manuals
CGi Series 4 Users Manual CGi Series 4 Users Manual – French CGi Series 4 Boiler Manual – French CGi Series 4 Boiler ManualSales Collateral
CGi Series 4 Sales FlyerMore Residential Boilers
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