No-Loss Stackheads

No-loss Stacks Reduce Air Flow Resistance and Save Money!

More and more engineers are conscious of the need to conserve every aspect of energy. One historic 'thief' of a fan's performance has been the back pressure created by the twist and turns of the exhaust from a fan. The ideal solution is to have a straight shot to the atmosphere. But this often was not possible because of the need to keep rain water out of the fan. The No Loss Stack solves that problem.

Stackheads Used to Exhaust Through the Roof

Constructed as a duct that is attached to and exhaust into a second duct that is 1" larger in diameter, the larger duct allows the air to exhaust while allowing rain water to run down its inside walls and drop outside of the inner duct. Typically, the second duct has a length that is four times the diameter (4 x D) of the inner pipe. It is attached to the inner pipe with brackets and often has a flange on the top lip in order to 'guy' wire the entire unit to the roof. 

We make sure all of your size and transition needs are taken care of when you order a no-loss stack for your system.

Download the No Loss Stack Spec Sheet