on all orders to the lower 48 states
Vacu-Stack is the premier chimney cap (collar included) for solving common, wind-related chimney draft problems. Wind-induced downdraft can cause smoke.
Application: Double wall or triple wall air-cooled chimneys. (Collar Included)
Vacu-Stack is the premier chimney cap (collar included) for solving common, wind-related chimney draft problems. Wind-induced downdraft can cause smoke to enter the living space when: Hills, mountains, tall trees, and or tall buildings are in the vicinity. Vacu-Stack also functions as a conventional chimney cap by protecting the chimney from rain, snow, debris, and animals.
The optional stainless steel 1" mesh screen, used as a bird guard, will never rust and are available for either style of Vacu-Stack caps. The screen will assist against debris and animals from entering the chimney and will help contain sparks.
|Diameter A (Inside Flue Dimension)||Diameter B||Diameter C|
SIZES: Custom sizes available up to 48". Please contact us for price, shipping time, and specifications.
CHIMNEY TYPES: Double wall or triple wall round, air cooled.
Step 1: Note the Spacers. The three spacers located on the underside of the TDW Air Cooled Vacu-Stack chimney cap maintain ventilation space between the bottom of the Vacu-Stack and top of the chimney. This is essential for uninterrupted air flow through cooling channels in air-cooled chimneys.
Step 2: Fitting the Vacu-Stack inside the flue. Vacu-Stack chimney caps fit inside round metal and masonry flues. Press the pipe end of the Vacu-Stack into the flue until fit is snug.
Step 3: Applying a Watertight Seal. Apply a thin layer of silicone caulking to seal joint between Vacu-Stack and top of chimney. The chimney silicone is an optional add-on for this product. If you are installing on rectangle or square flues, please visit the masonry adapter page.