Dunkirk Helix VX Boiler Overview
The Dunkirk Helix VX is a gas-fired, wall-hung modulating condensing boiler with an efficiency of 95% AFUE. The Helix VX is an Energy Star 2016 Most Efficient product and is available in five sizes. It has a 5:1 turn down ratio and features a self-cleaning, vertically mounted helical fin tube heat exchanger constructed of 316L/444 stainless steel. The unit offers a variety of venting options and is approved for PVC, CPVC and Polypropylene venting. A top gas pipe connection with built-in drip leg makes installation easier, and the unit’s electrical wiring is easy access with a protective terminal strip. Other features include a control module with text display which manages up to 16 boilers, intermittent direct spark ignition, 30 PSI safety relief valve, boiler drain valve and condensate drain with built-in trap.
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