Quick Ventilation setup ques

bro54209

Well-Known Member
Yo rollers so I put my girlies in flower a week ago and hadn't installed my filter yet, so better start now b4 I need to panic. So I have 2x 6inch inline fans, one for my 4x2 and one for the 4x4. I was pulling air from the light straight out for both of them with the fan sitting directly ontop (outside) of the tent.

Question: Should I install light>fan> filter with fan and filter ontop of the tent ( Hot air will half fans life and pushing air out filter is not ideal) OR Light>fan + buy another fan (inline or boost?) and keep the HID completely sealed with its own vent sucking the air out and use the 6"to suck through the filter and blow out heat? Basically I want to make one 6 inch fan be able to extract the heat from the HID while filtering the smell. I mean the fans are a little OP to where they can't adjust down to low CFMs, I have to have them turned to their lowest possible pretty much as close to where the electricity is not giving a steady air flow where it turns off and on. Also if I'm around 80 degrees f and 50% humidity should I try to ventilate more heat at the expense of lowering the humidity(for Veg)? Any tips are priceless

Both are up to 300 watts rn with the flwer @ 72 degrees with the light on (RH ~35%) and 68-81 degrees off/on for the veg (RH ~45%). Been putting wet paper towels near the fan to help moisten the air in the veg but that and putting a pot of boiling water to raise the humidity really sucks, i need to
 

caveman117

Well-Known Member
humidifiers are cheap. and as far the filter situation. go filter-light-fan so your sucking air through everything then blowing it out of the area.

if 80 degrees and 50% seems to work well keep it their. if not id say its probably ok to drop a bit a humidity for lower temps or vice versa. play with it till you find what works best for you.

I know my humidity in veg is significantly lower than 50% and my plants dpnt seem to mind.
 

bryangtho

Well-Known Member
I run 4 x10 inch fan 2 in and 2 out and only run 2 for 7 or 8 months of the year as it can get very very hot here. Temp can reach from up 120 here so need to have a over kill of air just for those hot day. The picture is drawing the air out of room
 

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bro54209

Well-Known Member
Wow I feel so silly because I had planned filter>light>fan but I was originally more so confused on how to hang and install the filter i don't think my fan n filter combo off amazon came with a flange either and I'm not sure how to seal proof everything besides duct taping the edges, Thanks Caveman! So basically the filter just hangs on the ropes on the hooK Bryangto? Also my 4x4x6.5ft tent from virtual sun hydro came with 4 cross bars i assumed the flat ones were for the lights and the other 2 dipped ones would sort of cradle the filter with the velcro straps it came with but the 2 dipped cross bars were 42 inches so I wasn't sure if the two 4 ft flat ones stay 3 inches from the edge and the 2 42 inchers perpendicular? Edit: i remember why i wasn't going to go through with my original plan was so have the filter directly on the fan to prevent any smell leaks in the microholes of the ducting or light ? I wouldn't imagine a small crack in the Hoover dam would cause a tidal wave
 
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GreenThumbsMcgee

Well-Known Member
i also have my fan directly on top...im growin in a small 2x2x4 tent, so as far as filter options for me, i HAVE to run filter outside tent and am pushing air thru the filter. i had zero height to play with...ideally, the way you are going to set it up is best. I never even thought to push air thru...i was gonna have to skip the the filter entirely if i hadnt gotten the idea to run it that way from the ppl at the hydro shop, so they are good for somthing. lol
 
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