Is connecting the filter directly to the fan OK or better put some ducting inbetween?

I bought RUCK RKW 150-L 700m3 fan, Rhino Pro Filter 150/600 and over 15' of acoustic ducting.

My original idea was to connect the filter directly to the fan, then connect the ducting and hang its end outside. I figured this setup would be most efficient and quiet. Actually I even like/liked the concept of Foothill filters best.

But now I read some places that if the fan is attached to the filter a lot of noise would escape from/through the filter and the vibration of the fan can settle/unsettle/whatever the carbon in the filter. Even retailers "recommend using a short length of ducting between the fan and filter (just enough to keep them separated from each other, or as much as necessary for your application) to keep vibration from causing the carbon in the filter to settle".:what:

Is that true?

It seems absurd to insert ducting after the filter and double the number of potential failure points.

What are your thoughts?

I can't really try it out. I don't want to screw with the ducting too much. I only hope to connect it once right...


Also I forgot to order the clamp to connect the filter to the fan. crybaby.gif Do I need it at all though?
The RUCK plugs nicely into the Rhino. Could I just seal it with duct tape maybe?

I did all research before starting this thread and I thought that I wrote a sensible, well-articulated question.

But 24 hours later:
17 views and 0 answers


It doesn't appear to be a very useful forum...:(

u can attach your filter directly to your fan,the 2 things that are goint to make noise are #1 if the fan propellers # 2 the air being exhausted out the back,the longer the exhaust tube of the fan, the quiter it is, but it cuts down on efficiency.the bigger than fan the more noise its going to creat.you can counter act the noise by building a 5 sided box out of partical board and glueing foam egg crate to it then screw your box to the wall with 2 holes cut out for your ducting.

Even retailers "recommend using a short length of ducting between the fan and filter (just enough to keep them separated from each other, or as much as necessary for your application) to keep vibration from causing the carbon in the filter to settle".

I think this is the answer to your own post. The boards are queit on the weekends, so thats why not many replies. You should run a little ducting between the fan and filter..