On Thu, 6 Nov 2003 22:24:53 -0000, MR wrote:

Now I'm wondering from the posts whether the loose tubing in Pic 2
could be posing a problem as this is not secured fully
flush/air-tight) to the hole in the loft.

That round hole leads up to a chimney/external vent I take it and you
can feel an up draft at that round opening? The other end of the pipe
then goes to the rectangular hole in your earlier photograph.

All these joints need to be gas tight otherwise the flue gases will
seep out. Flue gases aren't the best things for ones health...

There looks plenty of room in the box flue I'd be tempted to take that
single skin flexable liner right down to a register plate above the
fire or even to the flue outlet of the fire (if it has one) with just
the single joint into the round hole. In fact I'd probably investigate
getting the liner right up to the pot as well.

--
Cheers
Dave. pam is missing e-mail