We have 2 bathroooms located near each other both with their own extractor fans but I've just noticed one of them is venting in to the roof space?! The other is venting through a roof tile vent.
I'd like to combine both so they are venting out of the existing roof vent. I've seen 2 suggestions on how to do this - either add non return valves and a y piece (so when just 1 room is on it doesn't just blow in to the other room) or put the fan on the vent side of the y piece so it sucks from both rooms.
I prefer the second option of a single fan but can't get my head around the wiring for it. They're both wired conventionally at the moment (switched live, isolator switch etc) but on 2 different lighting circuits.
Any ideas on how I could could combine this in to 1 fan or will I need to go the 2 fan route?
Thanks in advance!
I'd like to combine both so they are venting out of the existing roof vent. I've seen 2 suggestions on how to do this - either add non return valves and a y piece (so when just 1 room is on it doesn't just blow in to the other room) or put the fan on the vent side of the y piece so it sucks from both rooms.
I prefer the second option of a single fan but can't get my head around the wiring for it. They're both wired conventionally at the moment (switched live, isolator switch etc) but on 2 different lighting circuits.
Any ideas on how I could could combine this in to 1 fan or will I need to go the 2 fan route?
Thanks in advance!