Vacu-Stack Chimney Cap is the solution for wind induced downdrafting problems. Unique design increases draft in proportion to wind speed, but will not cure otherwise poorly drawing flues. Should only be used for wind related down drafting problems.
Wind driven, the slightest breeze provides positive ventilation with no chance of down drafting. Available in 4 stock sizes. Galvanized steel or stainless steel. Totally enclosed ball bearing requires no additional maintenance. Should only be used for wind related down draft problems.
Used for adapting a Vacu-Stack or Turbine Cap on a
masonry square or rectangular chimney flue.
Note: To use an adaptor plate, flue tile must be raised 1" or more. Stainless Steel custom made to fit your job requirements.