Duravent 6-Inch 304 Stainless Steel Chimney Liner Kit For Fireplace Inserts – 6DF304 – 15ft-35ft

Features

• Includes: 304 Stainless Flexible Pipe, 304 Stainless Chimney Cap, 304 Stainless Appliance Connector, 304 Stainless 16″ x 16″ Universal Top Plate
• Lifetime Warranty
• Outside Diameter Is 3/8″ Larger Than Inside Diameter
• Required By Most Wood Burning Appliances Installed In A Masonry Chimney/li>
• Available In 15FT, 25FT, And 35FT Lengths
• UL1777 Listed

WHY DO I NEED A CHIMNEY LINER?

A chimney liner is a very important part of the installation of a wood-burning appliance when venting into a masonry chimney. All appliances are tested to perform with a pipe of the same diameter as the collar of the appliance. It is expected that this diameter pipe will be used until the venting terminates above the chimney or building. When the smoke leaves the appliance or pipe (if the chimney is left unlined) the smoke expands. When it expands it cools. When it cools, the smoke doesn’t travel upward as fast which slows the draft. This causes condensation in the form of creosote on the inside of the fireplace and chimney walls. This creosote is still flammable and if a hot enough fire is burned can ignite and cause a chimney fire. The creosote has to be cleaned from the inside of the chimney more regularly to avoid a chimney fire.

Key Terms

• The appliance adapter connects the flexible chimney liner to the appliance.
• The flexible chimney liner pipe connects from the appliance adapter and connects to the top plate above.
• The top plate is designed to fit almost all chimney flues. It has a hose clamp type of support to support the weight of the liner.
• The chimney cap prevents weather from getting in the pipe while allowing smoke to escape.