by wookey »
Sat Mar 12, 2011 9:57 am
A bend doesn't normally prevent a flexible liner going down the chimney - just makes it a bit more awkward. Many chimneys have bends and offsets in them.
The choices are:
1) Rigid Pumice liners (will last indefinitely - you need to take out bricks for access at the corner)
2) rubber snake down chimney then pour in concrete (needs a specialist company - they have to take out bricks every two metres, should last forever)
3) flexible stainless liner. (easily DIYable, but will only last a limited time. 10-40 yrs depending how much you spend on liner and how much you use the fire)
Insulation has to be heat-proof so you can use vermiculite or Leca.