The Dunkirk Helix VLT is a stainless steel, wall-hung condensing boiler with an AFUE of up to 95%. The Helix VLT features an innovative 316L/444 stainless steel fin
tube heat exchanger, built-in primary/secondary piping, factory wired and installed probe-type low water cut-off, corrosion-resistant CPVC flue collector and an easy control with outdoor reset, priority domestic hot water and integrated multiple boiler control capability for up to 16 boiler modules. The Helix VLT is replacement ready with 1-1/4” piping connections and low pressure drop.
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