It has 4" or 6" duct connector, what's the native size? Will 4" reduce CFM?
1629651
The unit comes with the reducer to 4" installed. The reducer would need to be removed to fit a 6" duct. I don't know if the CFM is reduced but the unit made a huge difference in the moisture in our master bath.
1629652
The 4" duct size will not compromise the CFM rating as long as it is a short run, approximately 10' or less. For longer runs it is recommended to use the 6" duct size to maintain proper air flow and allow the motor to achieve the 110 CFM.
1629653
The unit comes with the 4" adapter attached to the output. To use the 6", you just need to remove the adapter.
225820
Not exactly. The hole on the fan is 6". With that said I put a new 6" duct from the fan to the hole in the roof. The hole in the roof is a 4" hole. I just put a 6" to 4" transition and the fan runs fine. It is super quiet and gets plenty of flow.
325187
The manufacturer doesn't provide a flow rating for 6' for this model. They stop at 4' so I'd guess it's not recommended for your application.
223298
No too small get a 6in fan and filter you need Atleast 400cfm for that square footage
1319338
Hi Joe: I had my electrician install both of these fans and I will say that honestly I do not know but.....I had him replace my 4" to a 6", it is a very inexpensive hose.
1979905
Hi - I don't have a 6" installed but I was going to do it in the future for my table saw. I think it can only help. The double 4" adapter comes off the unit and a 6" fitting is behind it. My unit has a 5" hose from the blower to the filter. Good Luck.
639368
It connects to a six inch duct. You could reduce it with a fitting but this would also reduce the fan's output.
469739
A 4" to 3" is not included with the fan, I bought the reducer separate at Home Depot as part of a dryer vent kit for $13. I was able to use the reducer and it came with an angled piece I needed, so it wasn't a waste of money for me. I believe you can find a reducer in the ABS black plastic if you just need the reducer. I sealed mine with the shiny silver duct seam tape.
571472
It is a 6" opening on each end but you should be able to find a reducer to fit 6" to 4".
384919
yea size is wrong I couldn't even connect my 6inch ducting to the filter I could the fan if it don't work just use a duct tap works just as good! btw make sure it well sealed
648287
According to the installation instructions for the fan, it directs to install a circular duct (4 inches) to the adapter.
577337
Good fan. I've got it hooked up to a 4" exhaust tube. I think 5" will work as well, but not 6".
1275828
If you want to get technical, you will want to know the CFM (cubic feet per minute) of the fan you are using. If you have a 6 inch and a 4 inch fan with the same CFM, they will vent the same amount of air. You will need 6 inch ducting to attach to the hood, but that does not necessarily mean you can only use a 6 inch fan. I rigged this up to a lasko blower fan from walmart (~$45) and it does well.
95168
The outlet adaptor is about 5.75"; so, the pipe (the corrugated pipe for the existing air flow) is 6", if I recall correctly.
95167
6 inch connection. Fan works very well. I have had installed for three years now
1510410
No it doesn't. But a 4" flex duct fits on with a little bit of work and i think you could buy an adapter at home depot, amazon, or lowes. I bought this for my mother in law bathroom and it is so quiet. Easy to install. I put mine in a wall above the toilet next to the shower.
1194012
I recently put an 80 cfm fan in a powder room that is also about 5 x 7 with 8 foot ceiling on main floor of two story house (length of ductwork makes some difference). I think that was a little bigger than the recommended size (I saw anywhere from 5 to 8 minutes recommended to remove the room air volume) but I didn't want to go too small. 80 cfm is plenty. Drawback of going bigger is need for larger diameter duct to make use of the fan power, a little more noise from a larger motor, and less energy efficient both due to motor and to pulling more heated or cooled air out of the house.