#CAPTION# #CAPTION-Mobile# #DOWNLOADTYPE# Download #DownloadDropDown# #file-path# #caption# Home / FAMCO / Chimney Caps FAMCO - Round Base Chimney Vacuum Cap - AluminumDOWNLOADSRound Base Chimney Vacuum Cap - Aluminum Model: VCA The FAMCO Vacuum Cap VCA Chimney Cap has been used for decades with gas, oil, coal and wood burning chimneys. This chimney cap increases updraft and prevents downdrafts caused from wind. This works by forcing the wind to alter its direction...Category: chimney caps | chimney hoods | chimney pots...MasterFormat: Central Heating Equipment | Breechings, Chimneys, and StacksView Product Details From Manufacturer FAMCO649 North Ralstin StreetMeridian, ID 83642 Tel: (800) 234-1903 Fax: (208) 884-8943famco@famcomfg.com https://www.famcomfg.com Find a rep/distributor Request More Info DOWNLOADS Related Products Overview Round Base Chimney Vacuum Cap - Aluminum Model: VCA The FAMCO Vacuum Cap VCA Chimney Cap has been used for decades with gas, oil, coal and wood burning chimneys. This chimney cap increases updraft and prevents downdrafts caused from wind. This works by forcing the wind to alter its direction over one of three gores on the cap. The change of direction creates an area of lower density air (partial vacuum) at the outlet of the pipe. Lower density air creates draft within the exhaust pipe, helping to remove exhaust gases and increasing overall efficiency. The positioning of the cap relative to the prevailing winds is not critical but is slightly more effective when placed with its flat side facing the winds. This Chimney Cap has a round base for installation over a round pipe. Quality constructed in .020 - .025 gauge Aluminum. Additional Information SKU VCA UniFormat B30 FAMCO649 North Ralstin StreetMeridian, ID USA 83642 Tel: (208) 884-8931 Fax: (208) 884-8943 Tollfree: (800) 234-1903famco@famcomfg.com Website: https://www.famcomfg.com Downloads