not sure this is the right forum, but I have a couple of queries.
I want to vent a cooker hood with 150mm duct (70cm high), converting to 220 flat at a 90 bend, then 1m of flat and another 90 bend to outside. I have a powerful hood (650 m3) so it should be able to cope.
queries -
The manual says I should include a condensation trap and i presume this is on the vertical 150mm pipe. Trouble is, I can't find one at this size. They tend to be 100mm, and I would rather not reduce the ducting size. Also, am I right in thinking the trap would need an outlet? There is a stainless steel chimney around the ducting, so where is the outlet meant to go to?
The 220 flat that goes out through an airbrick only has a the dampning louvre design so no back draft shutter. If I were to install one, it would have to be in the ducting somewhere. Should it be nearer the hood's fan, or nearer the wall outlet?
Incidentally, why are the airbrick outlets available in single, or with an adapter to make it into a double? In the double only the top half is used.
I want to vent a cooker hood with 150mm duct (70cm high), converting to 220 flat at a 90 bend, then 1m of flat and another 90 bend to outside. I have a powerful hood (650 m3) so it should be able to cope.
queries -
The manual says I should include a condensation trap and i presume this is on the vertical 150mm pipe. Trouble is, I can't find one at this size. They tend to be 100mm, and I would rather not reduce the ducting size. Also, am I right in thinking the trap would need an outlet? There is a stainless steel chimney around the ducting, so where is the outlet meant to go to?
The 220 flat that goes out through an airbrick only has a the dampning louvre design so no back draft shutter. If I were to install one, it would have to be in the ducting somewhere. Should it be nearer the hood's fan, or nearer the wall outlet?
Incidentally, why are the airbrick outlets available in single, or with an adapter to make it into a double? In the double only the top half is used.