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Helix VLT Vertical Laser Tube, Wall Hung Modulating Condensing Boiler

Innovative. Efficient. Dependable. Dunkirk.

The Dunkirk VLT features 95% AFUE.

Plus:
-Built-In Primary/Secondary Piping
-Built-In Low Water Cut Off
-5:1 Turn Down Ratio
-Approved for PVC, CPVC and Polypropylene venting
-Innovative Heat Exchanger
-Low Maintenance, Self-Cleaning
-Designed in the US, for the US
-150 psi MAWP

  • Wall Mounted: Bracket included.
  • Boiler Control Module: Automatic Line Voltage/Intermittent Direct Spark Ignition/Modulating with a 5:1 combustion turn down ratio. For multiple boiler applications - the control module can stage fire up to 16 boilers.
  • User Display Interface: Easy programming with text display. Outdoor Temperature Sensor included.
  • Heat Exchanger: High grade 316L/444 Stainless Steel Fin Coil with Flame Sight Glass.
  • Built-in Primary/Secondary Manifold Piping and Pump.
  • Combustion: Gas Valve with Premix Venturi and Blower, Durable Stainless Steel Mesh Modulating Burner with 5:1 turn down ratio, Direct Spark Igniter, Flame sensor and LP Conversion Kit included.
  • Electrical: Detachable Low Voltage Terminal Strip, High Voltage Junction Box and Transformer.
  • Other: 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.

  • Central Heating Pump available for 50 to 200 MBH only (Taco 007 or Grundfos UP15-42F).
  • Concentric Vent Kit (2" and 3").
  • System Sensor (For Multiple Boiler Applications).

Efficiency:
Energy Star Rated

Capacity:
50, 75, 100, 150, 200 & 299 All Dunkirk Helix VLT capacities are 95% efficient and meet the criteria for Energy Star 2014 Most Efficient.

Heat Exchanger:
Direct Vent

Combustion:
Sealed Combustion

Venting:
Direct Vent

Boiler Type:
Hot Water

Rebates & Incentives