We have a 13 year old Cape Cod home in which the Chimney was done with a full clay liner 6 1/4 or 6 1/2". We communicated that we were putting in a woodstove insert that was NOT the main source of heat for the home. We bought the Insert and when it was installed, it was put in with 5 feet of stainless pipe up the flu. We are now being told that we need to line the entire chimney by Chimney Sweep as it should have been from beginning (he said). He said there is nothing that is safe to put so that pipe adheres to clay so that any criosote chunks do not drop between the two above the stove. We have had no issues, but it does need a cleaning (hence finding this out), which was our purpose in calling the Sweep. Is there any way to solve this issue without paying about $3000 for a liner/labor? Are there ways to do this oneself?
Any advice would be welcome - please