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Also known as wind beaters, fireplace smoke caps, chimney smoke caps, or wind caps.  Superior Chimney's specialty chimney caps cure most wind related fireplace smoke back up issues via the Venturi effect, which utilizes wind movement hitting this cap to increase strength in positive draft literally sucking the exhaust & fireplace smoke out of your chimney. It is the easy solution to fireplace smoke or back puffing from dynamic wind loading or wind induced downdrafts.

Advantages of the Vacu-stack:Superior chimney vacu stack demo

  • Prevents fireplace smoke & other chimney smoke problems related to wind.
  • Induces strength in positive draw to reverse fireplace smoke back up.
  • Allows for fireplace smoke free use in variable conditions.
  • May eliminate the costly & unsightly need of "raising the chimney".

Superior chimney vacu stack
Venturi effect - When the wind blows, the air is forced around the vacu-stack rather than though its openings. This creates the Venturi effect at the top of the chimney correcting your chimney smoke problem.  The pressure inside the chimney is decreased and Bernoulli's principle goes to work, forcing exhaust in the chimney up towards the top, increasing the upward draft, preventing fireplace smoke back up. The harder the wind blows, the more upward draft will increase. And it doesn't matter which direction the wind is blowing!
Wind induced downdrafts -The downward flow of air into a chimney usually caused by the deflection of wind by obstacles higher than the chimney such as neighboring tall trees, roofs, home additions, and other buildings or homes.  A wind downdraft may even be a low speed "breeze".  This can cause chimney smoke problems or fireplace smoke in house.

*Superior Chimney's CSIA (Chimney Safety Institute of America) Certified Chimney Sweeps will evaluate your chimney and recommend any corrective action to ensure that it is capable of proper & sufficient draft and flow. Fireplace smoke back up & other chimney smoke problems are accompanied by many serious potential hazards.
Superior chimney dynamic wind loading
Dynamic wind loading - Can occur when the wind causes negative air pressure. Negative air pressure and consequent telltale back puffing of smoke may be particularly noticeable when a door or window is opened on a side of the home other than the windward side. To restore normal pressure in the home, make up air is apt to enter via the chimney and come down into the living area. If the appliance is operating, smoke is then carried into the room.  This is one example of chimney smoke problems.

* In a relatively airtight house, negative pressure problems can be caused by appliances that exhaust the inside air out of your house, such as cooking ranges, exhaust fans, a clothes dryer vent, furnaces, attic fans, or other devices.  This describes many common chimney smoke problems and fireplace smell entry issues.  Your individual chimney smoke problems may be the result of a variety of factors.

Contact Us Call Superior Chimney today to resolve
your fireplace smoke problems!  Call Toll FREE... 877-244-6349

Contact Information
Phone 877-244-6349
Fax 630-889-8740
Click here to E-mail us
Directions 1105 E. St. Charles Road
Lombard, IL 60148
Office Hours
Monday - Friday 8-5
Saturday 9-5
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