Chimney build up is called creosote. You should clean your chimney regularly to remove the creosote from the lining of the flue.
Usually as the chimney is blocked, mainly by a build-up of soot from previous fires.
soot
Soot
Such debris is usually called soot
It is the accumulation of ash and smoke residue that builds up on the inside of a chimney after use.
A chimney scrubber does not just clean a chimney it scrubs it. It cleans up and build up in the flute which can be a fire hazard.
It is best to start at the bottom and work up.
an umbrella
you just build one. doesn't matter how it looks. if you think it's a chimney, then it's a chimney.
Usually as the chimney is blocked, mainly by a build-up of soot from previous fires.
Mainly creosote, which is released from the wood as a vapour during burning which then condenses on the inside of your chimney or flue liner. The cooler the chimney, the worse the problem, so burning your stove turned right down will speed up this build-up. Similarly, burning unseasoned wood or certain species like pine & cypress can speed up this process. The cure is to sweep the chimney regularly and burn your stove hot from time to time. If you dont, one day the build-up can catch fire within your chimney. Lining the chimney with a stainless steel flue liner to increase the speed of gases up the chimney (preferably insulated liner to further reduce heat loss) also reduces the problem.
I don't get why, but it's an umbrella
A chimney.
Chimney liners help keep soot out of your fireplace by not allowing it to build up onthe inside. Liners also make cleaning much easier, and prevent fire hazards by keeping chimney clear and not clogged.
An umbrella
an umbrella
What may go down the chimney up but not down the chimney down?