Dunkirk is proud to bring you the most efficient, forward-thinking home heating solutions available today like the Dunkirk Helix VLT. Dunkirk's "Vertical Laser Tube," modulating condensing boiler features a revolutionary, vertically mounted helical fin tube heat exchanger, made of 316L/444 stainless steel. This self-cleaning design features wide, smooth waterways that help remove hard water deposits and prevent scaling.

Features & Benefits

• Energy Star® Rated

Specifications

• Type: Gas Fired, Hot Water
• Supply Connection: 1-1/4 Inch Threaded
• Return Connection: 1-1/4 Inch Threaded
• Gas Type: Natural/Liquid Propane
• Gas Connection: 3/4 Inch Threaded
• DOE Heating Capacity: 185 MBH
• AFUE Rating: 95 Percent
• Boiler Dimensions: 23 Inch Width x 16 Inch Depth x 42 Inch Height
• Boiler Height Including Draft Hood: 42 Inch
• Boiler Material: Stainless Steel
• Water Content: 1.8 Gallon
• Ignition Type: Automatic Line Voltage/Intermittent Direct Spark
• Burner Type: Stainless Steel, Mesh Modulating
• Venting Type: Roof/Sidewall/Concentric
• Vent Size: 3 Inch
• Relief Valve Details: 30 PSI Safety Relief Valve
• Pressure Rating: 150 PSI
• Mounting Type: Wall
• Warranty: 15 Year Limited (Heat Exchanger), 2 Year Limited (On Parts)
• Options: Factory Installed Probe Type Low Water Cut-Off with Test Feature, 30 PSI Safety Relief Valve, Boiler Drain Valve and Condensate Drain with Built in Trap
• Inclusions/Features: Bracket, User Display Interface, Outdoor Temperature Sensor, Flame Sight Glass, Flame Sensor, LP Conversion Kit, Low Voltage Terminal Strip, High Voltage Junction Box and Transformer
• Applicable Standard: ASME, AHRI, CSA, CSA (Canada and US)
Application Indoor; Mounting Position Vertical; Vent Length 6 to 100 Foot; AHRI Boiler Input Rating 40 to 200 MBH; Net Water Rating 161 MBH