extractor reducer 150mm to 83mm

Just out of curiosity, are you talking about an exhaust fan?

"Yaz" wrote in message news:j3zwj.7665$ snipped-for-privacy@newsfe6-gui.ntli.net...

Sounds like you likely need a larger "vent out" as (US) you have a 6" outlet on the fan and only a 3.5" "vent out". Sounds like you may just need a 4 x 6 IR (increaser reducer). This is in US inches, 4" to 6" round sheet metal increaser/reducer given the metric I am not sure but if you are in the US they are available anywhere. That said, the fan isnt going to perform to it specs being choked down to a 3.5"-4" outlet.

Mark

"Glenn" wrote > Just out of curiosity, are you talking about an exhaust

I am trying to vent out a standard shower extractor fan (ie steam / condensation) etc.

Sid

I actually need a reducer 6" to 3.25"+-. Has anyone done this and how will it affect the performance of the fan?

Sounds like you likely need a larger "vent out" as (US) you have a 6" outlet on the fan and only a 3.5" "vent out". Sounds like you may just need a 4 x 6 IR (increaser reducer). This is in US inches, 4" to 6" round sheet metal increaser/reducer given the metric I am not sure but if you are in the US they are available anywhere. That said, the fan isnt going to perform to it specs being choked down to a 3.5"-4" outlet.

Mark

For questions such as this, I usually contact the manufacturer. They already know the answers in most cases. What country are you in?

It will reduce performance by at least 70%.

It could make a difference dependant on whether the reduced end is at the roof or at the extractor end. I dont know which is better as I want to push as much out as possible.