Product details:

Designed for appliances tested and listed for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood oil, coal, or gas. To calculate the installed length of DuraPlus chimney pipe, subtract 1 1/2" from each length of chimney pipe. DuraPlus is a triple-wall, all-fuel chimney for use with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas.