Hi all , I'm thinking of installing a Woodburner witha twin wall flue system the problem is the system from my coal yard is £1200 approx & when I checked on the Internet for the similar system it works out30% cheaper online , my problem & worry is im not familiar with what products are good quality etc can anyone therefor reccomend a good supplier of twin wall ,is there anything I should consider etc , there is even suppliers on eBay are the systems on eBay any good cheers rob
