Stove Help & Advice Home
Read this in conjunction with:
page - including what to do if you have a chimney fire.
Chimney Fire Stats
Chimney Tar, Soot and condensates
Ways to reduce the risk of chimney fires
Chimney sweeping brushes and rods
Reasons for lining and insulating a chimney
When using a woodburning or multifuel stove
- Insulating your chimney liner reduces tar and soot deposits thereby reducing the risk of chimney fire.
- Lining your chimney creates a continuous smooth chimney with less surfaces for tar / soot to condense onto. Tar that does form can flow directly back to the stove to be recombusted as opposed to building up in the rough crevices of a masonry chimney.
- Insulating your chimney liner increases the temperature of the flue gases which in turn will tend to improve the draw of a chimney since warm air rises.
- Lining your chimney will cure problems of smoke leaking out through cracks in a masonry chimney.
- Lining your chimney will stop new tar from leaking out through cracks in the chimney or onto your stove.
- If your chimney is very large then lining your chimney for use with a stove can be a safer option as flue gases in a large chimney cool very quickly resulting in a high level of condensates which are hard to remove when sweeping.
- Containing the flue gases in a pipe of consistent diameter maintains the flow and velocity of the gases in the system - ie the flue gases will travel faster. This will reduce deposits (as the gases spend less time in the chimney and cool less) and will also improve draw.