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Dayton Squirrel Cage Fan Setup

Discussion in 'Grow Room Design & Setup' started by laserbrn, Mar 25, 2010.


    laserbrn Well-Known Member

    I purchased a Dayton Squirrel Cage fan on ebay. I bought the 465CFM I believe it is. Well it just showed up and I have no idea how to set it up. I haven't wired it yet so I don't know which way the air even moves (never used one before, always used inlines). I also don't know how I'm supposed to hook ducting up to it.

    Is there a 6" flange that I need or something? what the hell do I do with the square side?

    Any help would be appreciated if you've used one of these things!

    Attached Files:

    Dirty Harry

    Dirty Harry Well-Known Member

    Air blows out of the square side. It sucks in from the open center.
    You should be able to find a correct size heating flange at the local hardware store that will have a round end on the other side. Screw and or duct tape the flange onto the fan, connect your ducting to the other side of it, and your in business.

    I think the part is called a heating duct vent...You know the rectangle vents in the house.

    laserbrn Well-Known Member

    Perfect, that's what I thought was up, but I wanted to be sure before heading to the home depot. It looked about that simple anyway. Something tells me I won't be running this fan for very long though...it looks aweful loud and looks like it's gonna gobble up over 300W!!!!! I should've paid more attention before purchasing this thing, that's a lotta power for 465cfm... I feel like my inlines are a lot more efficient than that.

    any idea how I would hang that beast in a grow tent by chance? Any nice and creative ideas? I have an 8x4 grow tent and I plan to use this fan to vent the room. I have a 6" 365CFM fan to cool my lights.
    Dirty Harry

    Dirty Harry Well-Known Member

    Thats a hell of a lot of CFM for that size of space. I think it will implode your tent. Look into a variable fan speed controller. Then you can turn it down to what you need. I suggest it sitting on the floor in a corner unless you are able to make a way to hang it. I am not sure how much your tent can suspend.

    I use a 420CFM can fan and charcoal filter in my 12X12X8 sealed room. I turned it on before making a 3 inch passive intake as I though enough air would flow around the door. It literally started sucking and pulling down the plastic! Even the duct taped seams were creaking. I definitely achieved negative pressure ventilation. :hump:

    laserbrn Well-Known Member

    I have a 4" passive intake for the tent itself and the lights are ventilating 6" straight across the tent. That won't create any negative pressure in the room at all.

    8x4x8 = 256 cubic feet. I suspect this room will stay nice and cool like this and I won't have to worry myself with A/C hopefully. Should be moving air with the quickness. The sound may be my only concern. I admit it's a bit overkill, but I have had a hell of a time cooling that larger tent thus far and with 2x600w it gets pretty warm. I can afford to let it get 5 or 6 degrees warmer than the intake air temperature.

    You say set it on the ground, but isn't ventilating from the bottom of the tent pretty inefficient? I guess i'll stack up some cinder blocks inside the tent or something. I figured suspending it from bungee chords would help cut down the noise.
    Dirty Harry

    Dirty Harry Well-Known Member

    Bungee chords will make it a lot quieter. My fan and filter is on bungees and I don't hear a thing upstairs (Basement room). Any contact with a solid surface will transfer vibration and noise. In fact in the basement I don't hear the fan, only the air flow.
    I didn't mention, but I vent out at 6 inches, and the three inch intake seems to of done the trick. The plastic still pulls in (walls look like bubble wrap between the staples) but no more. When I open the door, you can see the room "relax" until it's shut again.

    I am sure you know this, but if you have odor problems and need to use a filter, negative pressure is your friend. And being sealed up is what you want if you decide to use CO2 in your grow.

    Yes, venting out from the top, and pulling in fresh air from below is the ideal setup. I have no experience with tents, only small rooms, so I don't know if it really matters in a small space but the heat is always above.

    laserbrn Well-Known Member

    I have a 6" 365cfm fan now sitting on top of my tent venting the lights. I have the Squirrel Cage fan sitting on cinder blocks (it's too big to suspend) and it's actually very quiet. It's not any louder than any of my other fans. There was a LOT of negative pressure with a 4" passive intake so I hooked up a 265cfm fan to that intake and it dropped the temps significantly.

    Last night I temperature tested the tent and under the lights it's 84 degrees @ 12 inches with 2x600w lights and no air conditioning. I know this won't hold true through the summer, but I don't really need it to. I'll be moving in the summer and so I won't be able to have anything going during that period anyway.

    Thanks for the help, fan works pretty awesome.

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