Size: 8". Product Dimensions: 38" W x 8" H x 22" D. 13/12 to 18/12 pitch. 2" clearance to combustibles: There's no need for locking bands or mechanical fasteners. For an extra margin of safety, the inner wall is 25% thicker than competing chimneys. Designed for normal continuous operation at flue gas temperatures of 1000 degrees Fahrenheit. For use with wood stoves, fireplaces, furnaces, boilers, ranges, water heaters, and other wood, coal, or gas-fueled appliances. A venting pipe with an inner diameter of 8" is required for this unit.

Size: 8 Inch Product Dimensions: 38" W x 8" H x 22" D 13/12 to 18/12 pitch 2" clearance to combustibles No locking bands or mechanical fasteners required Adjustable roof flashing for pipes with 8" diameter Inner wall is 25% thicker than competitive chimneys for an extra margin of safety Designed for normal continuous operation at 1000 degree Fahrenheit flue gas temperatures For use with wood stoves fireplaces furnaces boilers ranges water heaters or other appliances fueled by wood oil coal or gas