Product Features:

Control Module and Ignition Control
Designed for 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.

Product Features:

Sealed Combustion
Reduces energy usage by eliminating air infiltration.

Compact Design
Saves valuable living space. Boiler is only 28 inches high, 23 inches deep. Power venting eliminates the need for a draft hood.

High-Grade Stainless Steel Burners
European-designed, high-grade stainless steel burners for quiet 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. See the CGs Burners in Action! Real Media .rm Format (305 KB)

Designed Control Module and Ignition Control
Designed for mistake proof wiring...diagnostic indicator lights.

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.

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 tested at the factory 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 CGs boilers in place of one large-capacity boiler to meet the space-heating requirements of larger buildings.

Highest efficiency comfort heating
Models: UG-80, UG-105, UG-155, UG-230, UG-310

Innovative
Innovative combination of appearance, intelligence and technology.

High Efficiency
Over 92% AFUE and up to 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 maximizing 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.

• 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
• Negative regulated gas valve precisely delivers gas to the boiler
• Electronic control module automatically adjusts blower speed and gas flow rate in response to environment
• Modulates with 5 to 1 turndown 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

Locinvar Knight Boilers

Unmatched innovation and efficiency have made Lochinvar a legend in commercial water heating since 1919. Now, you can bring the legend home with the KNIGHT Heating Boiler.

The KNIGHT will be your hero in the battle against high heating bills. Strong, reliable, efficient, attractive, and intelligent—the KNIGHT is everything you want in a home heating system!

• 7 Models to Choose From
• 80,000 - 500,000 Btu/Hr
• 93% AFUE (KB 080-285)
• 90.3% Thermal Efficiency (KB 399-500)
• Up to 98.6% Low Temp Application Efficiency
• SMART SYSTEMTM Control
• Internal Cascading Sequencer
• PVC Venting
• ENERGY STAR® Compliant
• Condensing Stainless Steel Heat Exchanger
• Fully Modulating Burner w/ 5:1 Turndown