DuraVent Type B Gas Vent Draft Hood Increaser h31.8 Burn time will vary on

Burn time will vary on wind and other conditions but approx burn time is 6-7 hours per fill

and an easy to maintain

Heating up to 5

Set Size Width Depth Height 20" 26"

DuraVent Type B Gas Vent Draft Hood Increaser h31.8 Burn time will vary onOverview DuraVent is the premier company in the venting industry. With a broad range of engineered venting products, DuraVent has earned its reputation as the industry leader by offering innovative, safe, and professional products for the HVAC and Hearth markets. Type B Gas Vent DuraVent's innovative system for a lock tight connection for Type B Gas Vent is called DuraLock. See the alignment indicators meet; feel the ends grasp together; hear the snap