Hi,
I recently fitted cowls to adjacent chimney pots, which are for the living room and bedroom directly above it.
The bedroom has an open fireplace, which is not in use, so I used a cowl that taps off the chimney and has holes around it to allow airflow.
We sometimes use the open fire in the living room, so I fitted a mushroom shaped cowl for that one. Keeps out the rain, but has a good airflow for an open fire.
Problem is now that when I light a fire, the smoke is not dispersing vertically and seems to be sucked down the chimney into the upstairs bedroom.
So, can anyone recommend a way around this. The choices seem to be:
-Block off the unused fireplace chimney flue in the bedroom (from the bedroom end)
-Block off the bedroom chimney completely with a different type of cowl
-Somehow raise the cowl of the open fire chimney (would rather not do that - don't want to go on the roof)
Any advice appreciated, in particular around how best to block of the bedroom chimney from the inside.
Thanks