Wall mounting exhaust fan

[discbrks]

I have a Dayton 3C149 belt driven exhaust fan. The blade diameter is 48" and the overall shroud is 54" square. This will be mounted high in the gable end of the shop wall. Shop walls are standard 2x4 16" o/c construction. Should the fan be mounted flush to the inside of the 2x4s?

 

[Charles (in GA)]

Do you have a louver set that opens when the fan is blowing and falls closed, by gravity, when its off?

Charles

 

[kbs2244]

Simple answer is yes.”
But it does depend on the louvers.
Most will use up the 2x4 stud space for their frame.
But you want to mount tight to them.

 

[discbrks]

i don't have louvers yet, but i do plan on installing them in the future. So if the louvers use up the 2x4 stud space, should the fan have its own frame? Or should I frame it with 2x6's and mount it flush to the inside of them?

 

[CADPoint]

How old is the structure? You might be concerned with shaking the walls.

Any HVAC supply house has rubber pads for that you could use and bolt through. They have 1.5" sq through to sheet sizes. You could also get foam strip padding at any box store. I'd use lag bolts if your going to finish around the fan, bolts, washers, lock washer, plactic locknut, if your keeping it open.

 

[KCarGuy]

I had 2 Exhaust Fans...I larger belt driven out of a furnace and a 3 speed Squirrel Caged fan.
I set up mine like this and use a Cheap Replaceable Filter.
I also added a Door to close it off.
The Entire Board hangs of 4 studs that are screwed into the window Frame and can be removed.
The Metal Exhaust exit fits through the window (once removed) and I have a Screen on that (to prevent bugs and such).
Works Great for me.

 

[Plump]

KCarGuy, absolutely not trying to be a jerk, but why do you have a filter on the fan if it exhausts outside?

I'm looking to use an old squirrel fan as a sort of dust filter but was thinking of just mounting it on the ceiling. I want to learn as much as I can before I make some bone-headed mistake.

Hard to see if it's just a re-circulating fan from the pictures. Love the box though!

 

[Strouty]

KCarGuy, absolutely not trying to be a jerk, but why do you have a filter on the fan if it exhausts outside?

Sometimes when painting inside, you can send overspray outside and make a mess. Same thing with sanding bond or grinding steel.

 

[pattenp]

I think that fan can be surface mounted. Not recessed into the wall.

 

[NitroNic]

KCarGuy, absolutely not trying to be a jerk, but why do you have a filter on the fan if it exhausts outside?

Probably to keep the dust or whatever is in the air from building up in the fan. When the fan is full of dust/debris, it's not going to move air very well. Replacing a filter (or cleaning one) is easier and faster than cleaning the whole fan.

...And of course, depending on what is in the air that you are exhausting, might not want it going out into the environment.

Nic

 

[KCarGuy]

Yes...To keep from clogging up the fan and Motor...And to keep all the Overspray off of the tree outside the window (even though its my neighbors tree).

I used to have a Box mounted to my ceiling that had a circulating fan, like you are mentioning. It had a filter to catch all the **** in the air...It got dirty toooooo fast.

So I went a different way.
It works Great!

 

[Plump]

Eureka! Makes total sense. Thanks y'all.