Fireplace Insert Without Chimney Liner

The chimney draft is created like a tornado when a warm front meets a cold front.

Fireplace insert without chimney liner.

For chimneys more than 40 inches 1016 mm wide two additional no. 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. 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. 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.

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. Please remember these liners are sold in 5 increments 15 20 25 so for instance an 18 chimney will need a 20 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. Stoves inserts connected to fireplaces.

Without a chimney liner your chimney will be in danger of overheating which can cause your chimney to combust. A connector and chimney system designed with the wood burning insert in mind would be a necessary addition to the wood burning stove inserted into the fireplace.