ventilation for a grow tent?

[viperhighs]

What is a DIY way for venting a 4'x4'x6' grow tent? I'm running a 400w hps in my flower room, with six plants. (so i have to also think about cooling the bulb.)

There are holes in the tent where i can attach 4' ft ducting, will a computer fan attached to a dryer hose with a carbon filter on the end work?

 

[grnhrvstr]

chances are it wont be enough.I have about the same size tent using a passive venting system by running an active air 265 blower at the top of my tent blowing air up into my attic which is sucking air through my cooltube 600w/scrubber which in turn is sucking air from the bottom 4-6" vents that run behind my tent sucking in air from outside.the 265 is barely enough so i run it 24/7 with 3 15 minute shut off's during the early light cycle for my co2 injections.pics in my journal.peace

 

[viperhighs]

chances are it wont be enough.I have about the same size tent using a passive venting system by running an active air 265 blower at the top of my tent blowing air up into my attic which is sucking air through my cooltube 600w/scrubber which in turn is sucking air from the bottom 4-6" vents that run behind my tent sucking in air from outside.the 265 is barely enough so i run it 24/7 with 3 15 minute shut off's during the early light cycle for my co2 injections.pics in my journal.peace

I live in a townhouse and plan to set my tent in my room. How would you set up a ventilaiton system given that i probably can't drill any holes in the walls, or without my neighbors knowing?

 

[spiked1]

I live in a townhouse and plan to set my tent in my room. How would you set up a ventilaiton system given that i probably can't drill any holes in the walls, or without my neighbors knowing?

I live in a townhouse too and have a 6'6"x6'6"x6'6" mylar tent
I have 1 6" inline fan (powerful but noisy) blowing air into the tent through the bottom vent, and another fan the same sucking air through 3 cool tubes, these fans are only on when the lights are.
I also have 2 4" fans (also strong but noisy) 1 blowing air in at the bottom, and 1 sucking air out at the top, I leave these on 24/7.
I have them on 12/12 9pm to 9am to help reduce heat. (summer here atm)
But it still gets hot in there, so I have to leave all the windows open.
I want to set up my fans with ducting to blow hot air directly outside and do the same with the inlet.
But I have 2x400 hps and 1x600 hps..
That's what I have come up with so far after a very hot summer and temps around 105F, (40C)
If there are more suggestions I'd like to hear them as well.

 

[spiked1]

Oh, I also have a large oscilating fan inside the tent to keep the air moving.

 

[viperhighs]

Oh, I also have a large oscilating fan inside the tent to keep the air moving.

hey man is there any way you could put a pick up of your tent? i'm wondering if i should drill a hole in the ceiling to vent in the attic.

 

[spiked1]

hey man is there any way you could put a pick up of your tent? i'm wondering if i should drill a hole in the ceiling to vent in the attic.

Man I would love to do that, it would certainly solve a lot of problems,
but I rent, so I can't.
It's just a standard tent with 2x 6" vent holes at the top and 1 at the bottom,
but I also have a fan connected to ducting that I put through the bottom of the zippered entrance. I haven't cut any extra holes, have thought about it though.

 

[viperhighs]

Man I would love to do that, it would certainly solve a lot of problems,
but I rent, so I can't.
It's just a standard tent with 2x 6" vent holes at the top and 1 at the bottom,
but I also have a fan connected to ducting that I put through the bottom of the zippered entrance. I haven't cut any extra holes, have thought about it though.

so you don't actually have ventilation going out side, just outside the tent?

How many girls do you got at once veg/flower? I'm now going to run 4 4' ft cfl, and a 1000w HPS. i can't make up my mind if i want to split a 4'x4'x6' ft tent in half, buy two 2'x4'x6' tents, split a 6'x'6x6, or just get a three ft rubbermaid cab and use 2' floro's. I'm buying everything this tuesday, i'm gonna have to decied fast.

I think we can cut a hole in the dry wall in the ceiling for ventilation. My bro is a carpenter and he said he could do it. Then to fix it up you just get a piece of dry wall cut it to size..kinda the same way like if someone punched a hole in the wall.

 

[spiked1]

so you don't actually have ventilation going out side, just outside the tent?

How many girls do you got at once veg/flower? I'm now going to run 4 4' ft cfl, and a 1000w HPS. i can't make up my mind if i want to split a 4'x4'x6' ft tent in half, buy two 2'x4'x6' tents, split a 6'x'6x6, or just get a three ft rubbermaid cab and use 2' floro's. I'm buying everything this tuesday, i'm gonna have to decied fast.

I think we can cut a hole in the dry wall in the ceiling for ventilation. My bro is a carpenter and he said he could do it. Then to fix it up you just get a piece of dry wall cut it to size..kinda the same way like if someone punched a hole in the wall.

No I dont have it going outside, I did have the exhaust vents attached to the window but you could see it from outside. But it's upstairs so I leave all the windows open 24/7. The exhausted air is quite hot.