Boilers - Weil McLain - Responsive heating that provides warmth and comfort to your home.

Model Ultra

Innovative
Innovative combination of appearance, intelligence and technology

High Efficiency
Over 92% AFUE and 98% for low temperature applications

Attractive
The Ultra boiler features a new attractive design for installation in any setting

Intelligent
Features PhD Technology - an intelligent system that delivers Precision Hydronic heating and hot water needs while maxmizing efficiency by measuring and responding to the Data parameters of your heating system.

High Technology
Cast mono block aluminum heat exchanger. Gas valve, blower and venturi technology that constantly maintains optimal air and fuel ratio at all firing rates.

Model CGa
Weil-McLain Control Module and Ignition Control
Designed for Weil-McLain...mistake-proof wiring...diagnostic indicator lights.

Compact Design
Saves valuable living space. Boiler is only 28 inches high, 23 inches deep.

Stainless Steel Burners
Burners provide fixed primary air... no air adjustment required. Provide quieter ignition, longer life, and improved combustion.

Wiring Harness
Plug-in connectors that attach only one way to assure mistake-proof wiring for installation and component replacement.

Easy Power Hook-up
J-box located on outside of boiler with pre-stripped wires.

Convenient Servicing
Accessible controls...control module with diagnostic indicator lights... simplified wiring... vertical flueways...top cleaning.

Factory Tested
Every boiler is factory tested to assure reliable operation.

Improved Parts Kits
Parts furnished in convenient kits.

Limited Lifetime Warranty
Covers cast iron sections.

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

Cast Iron Sections with Elastomer Sealing Rings
Boiler sections are made of durable cast iron for strength, efficiency and long life. Modern elastomer sealing rings in the port openings assure a permanent watertight seal.

Temperature and Pressure Gauge
New large-faced gauge features easy installation, increased accuracy and easy monitoring.

Automatic Vent Damper
Prevents heat from escaping up the chimney when the burners are not operating. Saves fuel. Standard equipment on SPDN, SPDL and PIDN models.

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