- Free 5-year Parts & Labor Warranty
- Gas fired water boiler with cast aluminum heat exchanger
- Venturi mixing body mixes air and gas providing higher efficiency
- Designed to operate in low temperature condensing applications
- Outdoor reset and domestic hot water priority standard
- U-Control gives you the power for easy set-up and maintenance
- Negative regulated gas valve precisely delivers gas to the boiler
- Modulates with 5 to 1 turn-down ratio
- Variable speed motor matches combustion output to heating needs
- High grade stainless steel burner features quiet operation, high efficiency, and cleaner
  combustion for low NOx applications
- Ultra 310 93.3% AFUE rating is a gross output and combustion efficiency.
- Assembled in our "state of the art" manufacturing facility in Eden, North Carolina, USA

- 91% AFUE efficient
- Durable cast iron primary heat exchanger
- Condensing stainless steel secondary heat exchanger
- Unique 7 pass heat exchanger design maximizes heat transfer
- Vents with PVC
- Multiple vention options (direct vent, direct exhaust, concentric)
- Easy conversion to propane (kit included)

- Gas-fired direct vent water boiler with cast iron sections
- Uses sealed combustion technology which reduces energy usage by eliminating air   infiltration
- Control module and ignition control with mistake proof wiring and diagnostic indicator lights
- On-board pictorial wiring diagrams and troubleshooting guide
- Fast power hookup with external J-box and pre-stripped wires
- Low NOx Certified by South Coast Air Quality Management District (Rule 1146.2) in California
- Easily accessible components, and fewer parts for quick and easy servicing
- Energy Star Rating
- Simple propane conversion

- Gas fired water boiler with cast iron sections
- Direct vent capability
- Can be used with natural or propane gas
- All units are factory-tested, and include a limited lifetime warranty on cast iron sections
- Compact design saves valuable living space
- No vertical draft hood and no mechanical vent damper
- Intermittent electronic ignition with standard components for easy servicing

- Uses sealed combustion technology which reduces energy usage by eliminating air   infiltration
- Compact design saves valuable living space
- Control module and ignition control with mistake-proof wiring and diagnostic indicator lights
- Uses stainless steel burners for quieter ignition, longer life, and improved combustion.
- Easily accessible controls, vertical flueways and top cleaning for easy and quick servicing
- Gas fired water boiler with cast iron sections

- The CGt is available in one size and has a built-in tankless heater as standard equipment.
- The CGt gas boiler from Weil-McLain offers a compact design boiler that also provides   domestic hot water.
- Other features include high-grade stainless steel burners, integrated control module and   venting flexibility.

- Control module and ignition control with mistake-proof wiring and diagnostic indicator lights
- Compact design saves valuable living space
- Stainless steel burners for quieter ignition, longer life, and improved combustion
- Gas fired water boiler with cast iron sections
- Easily accessible controls, vertical flueways and top cleaning for easy and quick servicing.

- Comes with automatic vent damper for higher efficiencies and reduced fuel consumption
- Easy access to controls for convenient servicing
- Available with standing pilot or intermittent electronic ignition
- A versatile gas cast iron boiler for water or steam applications