Hi,
I've recently had some building work done - all really good and super happy with it all.
We have one problem we're now trying to find a solution for which is that the kitchen extractor is far louder than it should be.
The extractor is over an island, and goes through the ceiling to a chimney on a flat roof. 2 90 degree bends and probably most problematic, it has to pass through a massive steel beam - which has a hole cut in but could only make this wide enough for some 100mm ducting.
Question is - being fully aware none of this is ideal - if we had 6 inch ducting either side with only a small pinch point through the steel, is that materially better for noise and airflow than having 100mm all the way through, or is it only ever as good as the smallest point?
I know the best answer is rigid 6 inch ducting all the way, but it's not possible - the only other option is recirculation.
I've recently had some building work done - all really good and super happy with it all.
We have one problem we're now trying to find a solution for which is that the kitchen extractor is far louder than it should be.
The extractor is over an island, and goes through the ceiling to a chimney on a flat roof. 2 90 degree bends and probably most problematic, it has to pass through a massive steel beam - which has a hole cut in but could only make this wide enough for some 100mm ducting.
Question is - being fully aware none of this is ideal - if we had 6 inch ducting either side with only a small pinch point through the steel, is that materially better for noise and airflow than having 100mm all the way through, or is it only ever as good as the smallest point?
I know the best answer is rigid 6 inch ducting all the way, but it's not possible - the only other option is recirculation.