Fireplace Insert Without Chimney Liner

Please remember these liners are sold in 5 increments 15 20 25 so for instance an 18 chimney will need a 20 liner.

Fireplace insert without chimney liner.

A liner going to an insert or stove in the fireplace will be measured from the top of the chimney to the top of the insert or stove or the center of the hole on the back of the stove. When the correct insulated chimney liner is installed there is far less resistance to flow and very little temperature variation within the venting system therefor although creosote is not. While the original masonry fireplace and clay flue liner can be used as a passageway the original chimney flue can not be used to vent the wood burning insert. Stoves inserts connected to fireplaces.

The chimney draft is created like a tornado when a warm front meets a cold front. Grout shall be prevented from bonding with the flue liner so that the flue liner is free to move with thermal expansion. Without a chimney liner your chimney will be in danger of overheating which can cause your chimney to combust. You don t want to play with fire and if you don t have a liner then you re in danger of burning down your house.

4 vertical bars shall be provided for each additional flue incorporated into the chimney or for each additional 40 inches 1016 mm in width or fraction thereof. A different equation when installing an insert into a fireplace the size of an insert s firebox is smaller than that of the masonry firebox so the existing masonry flue may now be disproportionately large.