B
buckley plumb
hi serviced alot of fires in precast flues and found most dont pull very well.when going into the loft on some of them i have noticed the transition block from precast to twin wall is a 90degree block. can 45 degree blocks be purchased to fit the old 63mm precast blocks.also on the old 63mm flues some just dont pull apart from changing the terminal from ridge to a pot type and sweeping is there anything else that can be done.
thanks ant
thanks ant