Venturi Effect Chimney Cap

The venturi effect the secret to getting a flue to draw is to have a constriction in the chimney.

Venturi effect chimney cap. The vac u stack is a round device with stationary vanes which produces a venturi effect thereby creating a vacuum on the inside of the chimney as the wind is blown against. The venturi effect is the reduction in fluid pressure that results when a fluid flows through a constricted section or choke of a pipe. This work on the venturi principle and is named after an italian physicist giovanni batista venturi 1746 1822. I became convinced that a chimney cap designed to create a venturi effect would be the answer to my.

There are no moving parts to bind or malfunction. The vacu stack creates a venturi that causes flue gases to flow up and out of the chimney. The venturi effect is named after its discoverer giovanni battista venturi background. In fluid dynamics an incompressible fluid s.

Usually the most economical solution is to either install rain caps which divert the wind from being blown down the internal flue tiles or by installing a vac u stack. This creates the venturi effect at the top of the chimney and can correct your chimney smoke problem. Vacu stack chimney caps may eliminate the costly unsightly need of raising the chimney venturi effect the vacu stack when the wind blows the air is forced around vacu stack chimney caps rather than though their openings.