Vacuum Chimney Caps

Vacuum chimney caps. For use with fossil fuel chimneys. Designed to prevent downdraft and poor draws created by wind when blowing across the side gorges. The cap creates a vacuum at the base pulling air and/or fumes from the pipe and out the cap.

Galvanized or stainless stell construction available. Available in 3 to 20 inch sizes.

model description usually ships price QTY
GVC 426 Vacuum cap for use with fossil fuel chimneys. 4 inch size. Galvanized steel construction. 5-6 Days. Special Order $24.00
GVC 526 Vacuum cap for use with fossil fuel chimneys. 5 inch size. Galvanized steel construction. 5-6 Days. Special Order $24.00
GVC 626 Vacuum cap for use with fossil fuel chimneys. 6 inch size. Galvanized steel construction. 5-6 Days. Special Order $24.00
GVC 726 Vacuum cap for use with fossil fuel chimneys. 7 inch size. Galvanized steel construction. 5-6 Days. Special Order $28.00
GVC 824 Vacuum cap for use with fossil fuel chimneys. 8 inch size. Galvanized steel construction. 5-6 Days. Special Order $31.00
GVC 924 Vacuum cap for use with fossil fuel chimneys. 9 inch size. Galvanized steel construction. 5-6 Days. Special Order $33.00
GVC 1024 Vacuum cap for use with fossil fuel chimneys. 10 inch size. Galvanized steel construction. 5-6 Days. Special Order $38.00
GVC 1224 Vacuum cap for use with fossil fuel chimneys. 12 inch size. Galvanized steel construction. 5-6 Days. Special Order $41.00
GVC 1424 Vacuum cap for use with fossil fuel chimneys. 14 inch size. Galvanized steel construction. 5-6 Days. Special Order $71.00
GVC 1624 Vacuum cap for use with fossil fuel chimneys. 16 inch size. Galvanized steel construction. 5-6 Days. Special Order $101.00
GVC 1824 Vacuum cap for use with fossil fuel chimneys. 18 inch size. Galvanized steel construction. 5-6 Days. Special Order $133.00
GVC 2024 Vacuum cap for use with fossil fuel chimneys. 20 inch size. Galvanized steel construction. 5-6 Days. Special Order $166.00
SVC 326 Vacuum cap for use with fossil fuel chimneys. 3 inch size. Stainless steel construction. 5-6 Days. Special Order $47.00
SVC 426 Vacuum cap for use with fossil fuel chimneys. 4 inch size. Stainless steel construction. 5-6 Days. Special Order $46.00
SVC 526 Vacuum cap for use with fossil fuel chimneys. 5 inch size. Stainless steel construction. 5-6 Days. Special Order $48.00
SVC 626 Vacuum cap for use with fossil fuel chimneys. 6 inch size. Stainless steel construction. 5-6 Days. Special Order $51.00
SVC 726 Vacuum cap for use with fossil fuel chimneys. 7 inch size. Stainless steel construction. 5-6 Days. Special Order $56.00
SVC 824 Vacuum cap for use with fossil fuel chimneys. 8 inch size. Stainless steel construction. 5-6 Days. Special Order $66.00
SVC 924 Vacuum cap for use with fossil fuel chimneys. 9 inch size. Stainless steel construction. 5-6 Days. Special Order $81.00
SVC 1024 Vacuum cap for use with fossil fuel chimneys. 10 inch size. Stainless steel construction. 5-6 Days. Special Order $117.00
SVC 1224 Vacuum cap for use with fossil fuel chimneys. 12 inch size. Stainless steel construction. 5-6 Days. Special Order $126.00
SVC 1626 Vacuum cap for use with fossil fuel chimneys. 16 inch size. Stainless steel construction. 5-6 Days. Special Order $141.00
SVC 1824 Vacuum cap for use with fossil fuel chimneys. 18 inch size. Stainless steel construction. 5-6 Days. Special Order $173.00
SVC 2026 Vacuum cap for use with fossil fuel chimneys. 20 inch size. Stainless steel construction. 5-6 Days. Special Order $204.00
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Do you have questions about the products on this page?

Click on the ? image on the left or this link to ask us your questions!
#1 Q:   Is the vacuum Chimney Cap a good roof cap to use on a kitchen hood vent. The kitchen hood is a 810 CFM. The vent pipe is 8. My goal is to maintain the CFM by providing the correct roof cap. The backdraft prevention design here seems like a good idea for this application.
A:   We would not recommend it. This cap is designed for traditional chimneys and most likely does not have the water infiltration protection required for a non-chimney application. If you are very concerned about airflow, then upsize your cap from 8 inch to 10 inch to lower the restriction. https://www.hvacquick.com/products/residential/Ventilation-Accessories/Discharge-Caps-Roof/roof-caps-galvanized-steel

       Asked on 2020-04-12 by Finn
#2 Q:   Exhaust pipe is 8 OD Aluminum. Will cap fit inside or outside of pipe?
A:   That is designed to fit over the pipe.

       Asked on 2018-03-09 by Tom

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