Venting my 4x4x7 tent

Until you get it sorted out, you really should turn one of the lights off. Temps above 87 will stunt growth, possibly kill your plants and increase the risk of pests and disease.

Are you running the lights during the day or during the night? I always have lights off during the hottest part of the day (between 12 noon and 6pm).

well right now im using floro tubes to veg with, im using the hps to flower, but last i checked the hps was runnin at 87 or so degrees, thats why i decided to veg with floros to keep the heat down until i installed the window ac, and now im about to start using the hps again, im trying to figure out how to cool this fucker down, i used 1 of the exaust fans i got from home depot, and it was able to keep the heat down in my 4x4x4 box but i got a WAY BIGGER cfm fan, and its more than enough cfm for the tent and it doesnt even stunt the heat. im at a lost for words right now.

What are the temperatures outside the grow area like? If it's very hot, you may need to run some kind of air conditioning unit.

Psychopassive said:

Until you get it sorted out, you really should turn one of the lights off. Temps above 87 will stunt growth, possibly kill your plants and increase the risk of pests and disease.

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temps above 87 will stunt growth......bullshit
possibly kill your plants........bullshit
increase the risk of pests and disease.......bullshit


it will however adversely effect potency and make the plant much thirstier

it depends how far the ducting is run through the line before released outside. If the duct line is too long for the fan to pass air through, not only will it do nothing, it will burn out your fan. Either run a seperate exhaust suitable for your fan, or add duct boosters to your house ducting. It will also need to be air tight with a suitable intake (center room). I would suggest an impeller if you need an upgrade

easygrinder said:

temps above 87 will stunt growth......bullshit
possibly kill your plants........bullshit
increase the risk of pests and disease.......bullshit


it will however adversely effect potency and make the plant much thirstier

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increased risk of pest is completely accurate .. wont kill your plants or stunt growth, unless the light source is the primary heat source, in which the plants move away from the light.

It will however make your plants burn nutrient much faster and the humidity isnt bad either. I wouldnt leave the daytime temp over 85 too often, but up into the early 90's is fine, as long as its well watered, and not the norm.

Resident Kush said:

increased risk of pest is completely accurate .. wont kill your plants or stunt growth, unless the light source is the primary heat source, in which the plants move away from the light.

It will however make your plants burn nutrient much faster and the humidity isnt bad either. I wouldnt leave the daytime temp over 85 too often, but up into the early 90's is fine, as long as its well watered, and not the norm.

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i'm not saying its ideal, but it doesn't set you back that much in growth and the potency does drop a little but increased pest danger is untrue, you gotta have the bugs near by in the first place, it doesn't invite them in it just makes them multiply, a more accurate statement would be that it helps pests thrive.

Basically if your gonna get em your gonna get em, more heat don't make a difference it just helps em multiply

Like i said, i installed a window air conditioning unit that keeps the room at about 74 degrees it cuts on and off every hour or so. The room is about 87 with the hps on, but ive yet to try it with my new window ac. A question i have is, how long can the ducting be to have the blower fan reaching full capabilitiy, right now its probably about 6 feet long before the air leaves the ducting.

Resident Kush said:

it depends how far the ducting is run through the line before released outside. If the duct line is too long for the fan to pass air through, not only will it do nothing, it will burn out your fan. Either run a seperate exhaust suitable for your fan, or add duct boosters to your house ducting. It will also need to be air tight with a suitable intake (center room). I would suggest an impeller if you need an upgrade

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I just spent 200 dollars on a fan that could be used on a room twice its size, though the ducting does have one bend in it, im thinking this maybe the reason.