Lining
Lining
Relining the Chimney
This is the process whereby a chimney that is too damaged (or too big in the case of a stove) is given a new liner. It must only be undertaken by someone who is proficient in the field, as an incorrect relining can cause all sorts of problems, even being so bad as to need ripping out and re-relining.
Pumped Liners
In theory an excellent method.
However, one that isn't perfectly done can crack and leave bald spots on bends and long runs. To protect yourself, insist on the following points being written into the contract.
a) On completion, the work will be left for two weeks to dry.
b) Then the flue must be inspected by an independent CCTV firm.
c) The lining firm will pay the CCTV and recover the money from the client if the relining is shown to be free of any cracks or bald spots. (Plus a handling charge, of course.) The customer will pay NOTHING up front.
d) In the event of any cracks or bald spots being found, the client will be able to choose whether the firm has to ream out the lining and redo it until the lining is done properly, or whether they have to leave without receiving a penny from the customer.
Be prepared to have most firms refuse to agree to this.
Flexible Liners
These come in two types:
- Single skin for gas
- Double skin for solid fuel
Be warned, relining the flue to an open fire may cause it to smoke.
Points to watch;
- Be sure to have it insulated
- Make sure that it is installed the right way up with the correct adaptor at the bottom and something similar at the top to stop it unravelling
- A locking plate to hold it up
A reputable installer should cover these points as a matter of course. Sweep the chimney before installing. Fitted correctly these have a long life and work brilliantly. They are very cost effective.
Rigid Sectional Liners
The Rolls Royce of liners, with the pumice type possibly the best of all. Interlocking tubes backfilled around them, these will outlast anything.