Grow Tents & Odor

For anyone who has used a grow tent--have you found it to be an effective way of growing and masking the odor? I see a lot mentioned about carbon filters, exhausts, intakes, etc... which all makes sense, I was just wondering how tents accomodated these things. Does the exhaust have to leave the tent and out a window or is the room it's in sufficient (i.e. will the air being blown out of the tent via the exhaust fan reek of weed)?

Thanks!

hi, i got a grow tent that is 3' x 1.5' x 6' with a fan (somewhere near 200cfm) inside, connected to ducting that leads out of the tent and is connected to a carbon filter (odor sock). My understanding is that it is better to suck air through the filter than to push it through, but due to space limitations i had to have the fan pushing air. Works perfect for my tent size though and im week 6 in flower.

Here is 2 pics illustrating my set up (before i had the carbon filter). I had it going cooltube - ducting - fan.

Now i have it going cooltube - fan - ducting - carbon filter. By having the fan inside the tent it cuts out considerable noise as its in my wardrobe and when the fan was outside my girlfriend wasn't happy (i had a smaller fan before also so the bigger one outside the tent would have been very loud).

Also having bends in the ducting is not a good idea, as it loses some of the 'air flow power' (anyone feel free to chime in with a better term), but it was my only option and is working fine so far.

Someone told me that i'm an idiot for having the ducting coming straight from cooltube and venting the whole tent into the carbon filter, he said this makes the cooltube useless, but its working fine so far and i can place my hand right under the light and its not even hot. It may be a problem in the high heat of summer i guess, or with a bigger light - mine is a 400hps.

I do that too, with a 400 in a tent. I do it for simplicity. I have a 6 inch inline. i have it outside though. i pull thru the light thru the fan and push thru the charcoal filter. As an experiment i managed to just put the light on a circuit and i only lost a few degrees. Now that can ,ake all the diference and I plant to make it permenant but to do so in my tent i gotta get flanges and cut more holes. For now in wither i am doing ok.
My only other fan is a 6 inch duct fan. And i cannot decide if i want to put the light on the inline or the duct fan and do i want to put the charcoal filter on the inline or the duct fan.
Too much air through the charoal filter and it loses it power to clean. to little and it canot get all the smell in.
Some people put the filter inside. that is something else to think about. For now i keep it all under 80 so I am not worried. The prob i noticed id that when it starts to get over 80 very far it is going to go farther and then that few degrees wont really matter I will need a airconditioner on anyway.
If it gets hotter and i cant afford an airconditioner then i will try that again. I also have a little 50 dollar 4 inch ebay charcoal filter witha built in fan that works pretty good. I was going to use that for mother and clones in another tent but i have not built that tent yet. I will see what happens.
if anyone has any idea for me either i would not mind and as always will rep. Noce thread and reps for bringing it to the pages.

I do that too, with a 400 in a tent. I do it for simplicity. I have a 6 inch inline. i have it outside though. i pull thru the light thru the fan and push thru the charcoal filter.

Click to expand...

If you were to pull air from 40f weather to cool the bulb, then vent the exhaust outside the growing environment, would the moisture that is flowing over the bulb, harmful? If not then you could probably get your light super close to the plants if you had serious cooling going on. Eharmony420, how many plants do you tackle with your 400? I was in HD and noticed they sell pretty good inline duct fans 6" and 8" 25.00/35.00 Poo, is that a cyclone fan and if so is it quiet?

I personally would prefer that there were more intake and outtake ports on these tents. I am currently running 2 x 400 watts in mine with a carbon filter extracting out stale air and an inline bring in new air. Problem is its a little too hot in there on those hot summer nights and I need to change to a 600 with a cool tube.

But I want to bring the air in from outside, thru the cooltube and vent straight outside without the carbon filter which will work on its own venting port pulling air from inside the tent, filtering and extracting it. The reason for this is that will give the 600 watt the coolest air since it comes from outside and not from in the tent which is already at 25 degrees c.

But that means two intake ports, one for the air for the tent, and one for the cooltube, and two vent ports, one for the carbon filter and one for the cooltube. Most of these tents only have one intake port and two vents which are all 100mm ports which are two small for the 150mm cooltubes.

So I might have to cut a new intake and vent ports somewhere near where the cooltube will be. Unless anyone else knows a better way with these tents.

how much did you pay for your tent? is the odor eliminated?

Swapped mine for an oz. As for the odor, the carbon filter does its thing as it does, never had a problem with odors. Just a heat issue when the temps are high outside the tent (as in, in the room the tent is in) when the lights are on.

One of the issues is the amount of air you can move out of a tent. If you use too powerful an inline fan to pull out air your tent will suck up and put a lot of strain on the framing. So the way around that is to have an intake fan to pull in air through your ducting from some outside area, but it has to be exactly the same as the vent fan in litres of air per sec because you dont want your tent to bloat out from too much air and not enough extraction, and therefore the odors could leak through the flaps into your room.

But because most of the retail tents of small to medium size only have 100mm vent ports and sortof around about 125mm intake ports, it limits just how much air you can move through the tent which affects temporatures. Whereas if they had 2 x 150mm intakes and 2 x 150mm vents then there would be ample chance to move lots of cold air through when needed, more lights, more lumens, more bud.

ypu could screw on flanges then cut holes in the middle. that miight give some pretty stable vents.

hmmm good idea, thanks for that.

my tent is pretty smll, its a 20x36x66 i think...i have the screw in flanges in mine and it does the job for a 4"inline and carbon filter. the filter is pretty heavy so the flanges will support it but the actual tent canvas does not, all i had to do to keep the filter and the fan horizontal in the flange was take a few zip ties and tie the filter to the frame. thats right isnt it? the air being sucked through the filter which is inside the tent and being blown out the tent through the fan which is on the outside?

hey jonus, so you manage to grow in the tent during summer do u? How hot does it get round your way?

Im just asking as i'm nearing the end of my first grow and heading into summer, i thought i would give it a rest cos of the heat, i've heard alot of people saying not to bother

(sorry to hijack the thread)kiss-ass

I have some pics and a diagram posted of my tent. I started from seed and am just starting to see some sex. My carbon filter in the tent takes care of 90 percent of the smell. Ona gel or an ion generator will work for the rest

Grow Room
https://www.rollitup.org/general-marijuana-growing/131911-600-watt-small-grow.html

Flowering Pics
https://www.rollitup.org/indoor-growing/133211-flowering.html

poo said:

hey jonus, so you manage to grow in the tent during summer do u? How hot does it get round your way?

Im just asking as i'm nearing the end of my first grow and heading into summer, i thought i would give it a rest cos of the heat, i've heard alot of people saying not to bother
(sorry to hijack the thread)kiss-ass

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Winter here isnt all that cold compared to other parts of the world but most houses in this country do not have adequate insulation. So winter I use 2 x 400s and summer 1 x 600. If the house was properly insulated I would be using the 600 all year round.

Carbon filter/extractor fan and also intake fan pulling cool air from outside the house.

Also as a non-essential option, I have a standard extractor fan venting air from the room the tent is in. This can be a factor too. The tent will warm the room during summer, and in turn cause temperatures to rise.

Lights come on at 8pm and go off at 8am.

Average temp is about 27c between 8pm and 11pm, then drops to 26c till the sun comes up. Just starting to climb by the time lights go out at 8am.

Temps during the day with lights off are 22c. So overall there is only about 3 to 4 degrees difference between lights on and lights off.

I have a pic somewhere in my archives of the dying plants during one of the earlier grows, will dig it out and post here in a ricky tick.

nomaninsf said:

I have some pics and a diagram posted of my tent. I started from seed and am just starting to see some sex. My carbon filter in the tent takes care of 90 percent of the smell. Ona gel or an ion generator will work for the rest

Grow Room
https://www.rollitup.org/general-marijuana-growing/131911-600-watt-small-grow.html

Flowering Pics
https://www.rollitup.org/indoor-growing/133211-flowering.html

Click to expand...

Nice one. Thats the mylar tent I will be picking up within the weeks end. Way to go.

and do u all think a diy10mm plastic tent built wit 2x4s would work?would duct tape be sufficent for connecting the plastic together?

?????help please

cant find 10 so i went with 5.5mm plastic!