I made the stupid mistake of being conned into having a thermal concrete flue installed, mainly because the guy selling it seemed to know his stuff whereas the guy who tried to sell me a flexi liner was definitely prehistoric!
I now wish that I had gone Prehistoric! We had a storm which damaged the top of the chimney stack and ever since have had water seeping down and following the edge of the liner. It cannot get out other than through my newly lime plastered internal walls carrying soot stains with it. The new plaster is now blowing and will need replacing. I now realise too late that chimneys need to have air circulation of some sort. What a dunce ! Send me to the corner of the class!
Dont get concrete!
I now wish that I had gone Prehistoric! We had a storm which damaged the top of the chimney stack and ever since have had water seeping down and following the edge of the liner. It cannot get out other than through my newly lime plastered internal walls carrying soot stains with it. The new plaster is now blowing and will need replacing. I now realise too late that chimneys need to have air circulation of some sort. What a dunce ! Send me to the corner of the class!
Dont get concrete!