Product Features: Unique Section Design Burner and crown sheet are at the top of the section for higher efficiency and reduced sediment problems. Low NOx Emission Technology Certified by South Coast Air Quality Management District (Rule 1146.2) in California. Direct Vent Through wall, roof or unused chimney.

Sealed Combustion
Reduces energy usage by eliminating air infiltration.

GCM Gold Control Module^®
Designed for Weil-McLain, it features mistake-proof wiring and diagnostic indicator lights.

Easy Stand-Up Service
Components are easy to get to by removing the top jacket panel.

Easy to Understand
Pictorial wiring diagrams and troubleshooting guide are right in the top jacket panel.

Fewer Parts
Faster, easier service... more reliable operation.

Unique Combustion Technology
Assures higher efficiency with fewer parts and less complexity. Achieved through premix technology - gas and air are thoroughly mixed in the blower before entering the single burner.

Simple Propane Conversion
Just change the orifice plate provided with the boiler - simple to do.

Easy to Handle
New crate design with the weight at the bottom for easy hand trucking.

Factory-Tested
Every boiler is tested at the factory to assure dependable operation.

Hot Surface Ignition
Provides more reliable starts without adjustments.

New Parts Approach
Parts furnished in convenient kits with everything needed.

Limited Lifetime Warranty
Covers cast iron sections.

Multiple Boiler Systems
Use two or more high-efficiency GV boilers in place of one large - capacity boiler to meet the space-heating requirements of larger buildings.

Easy Power Hookup
J-Box is located on the outside of the boiler and has pre-stripped wires.

Homeowner Protection Plan:
Optional plan covers parts, supplied by Weil-McLain, and labor for all eligible repairs. Available through participating installers.