whoops!!
1. indeed, when fitting flue do not stand precariously on chair...
2. do not remove exit flue and expect it to go back in one piece....
any ideas?? i need to rebuild the box an am thinking of using some old cracked kiln shelves cut to fit the same area..
the old one was fibre board it's all pretty brittle now and the top is fairly bowed i'm thinking of replacing that with the same it will be easy to cut a circle out for the flue to sit on..