86 degree tent

yeatster

Well-Known Member
If anything, it would be the dryer side needing a damper. Your exhaust fan for tent should be plenty strong enough to have no concern.
 

MeJuana

Well-Known Member
75F is fine just keep the light back 18 inches is what I use in hotter temps so if the temps flucuate up and/or the plants grow a little I am fine. But I do use a temp gauge x 2 at canopy top. 240 cfm is great for a carbon filter so save that. You need something in the 400-500 range. I recommend researching a very quite quality inline fan. I have had mine for years now it is 460 cfm I think, I can't look right now. I bet there is better ones now

Edit: I wanna add that yes in the laundry room. It is always cheapest to cool your room if you can eject that hot air away completely. Next best scenario throuh the roof next to an attic vent because heat rises
 
Last edited:

Traplife

Well-Known Member
Is you exhaust vent at the top/roof of your tent? Most people forget basic physics - heat rises. I would say make sure you vent the hot air out a window, and your intake to also be routed to a window or a source of fresh air. 6" fans are kinda small i've learned that 8" inline fans with 8" ducting really gets the job done.

Try and have the ducting make the least amount of turns or bends possible.
Also, do you have fans running air into your tent? or just running through your reflector/cooltubes? my homie who runs HPS has separate ventilation for the lights and separate ventilation for the actual tent itself. it helps keeps the temps down. Couldn't stand having to deal with heat issues where i live. thats why i went LED. good luck man; your setup seems pretty legit! happy growing!
 

Kratomist

Active Member
I run a 6" into the tent at the bottom for cool air and I have a 6" 240cfm fan (I know that's small)on the hood blowing air the air in the tent through the hood and out of the tent. I only have two six inch holes in the tent and one eight inch hole to work with. But as of now I have the 8" closed up and just using the fan on the hood as an exhaust cause I can't afford another fan like that, also the floor in my tent is too small to add an exhaust fan, I just should of gotten a bigger tent, straight up.
 

Traplife

Well-Known Member
I run a 6" into the tent at the bottom for cool air and I have a 6" 240cfm fan (I know that's small)on the hood blowing air the air in the tent through the hood and out of the tent. I only have two six inch holes in the tent and one eight inch hole to work with. But as of now I have the 8" closed up and just using the fan on the hood as an exhaust cause I can't afford another fan like that, also the floor in my tent is too small to add an exhaust fan, I just should of gotten a bigger tent, straight up.
check out this cheap ipower 8" inline for $30 it pushes 420cfm which is great for that price! Having an exhaust separate from the one on your hood will greatly help reduce your temps.
 

highdave

Well-Known Member
Try to straighten your ducting could be losing airflow that way.

Looks like the tent is kinda just sitting in a room? Do you have a.c. in the house? What temp is the room its sitting in at?

You could seal that hole ya got in your ceiling that would at least help keep it in the attic space. I did something similar for my tent but was getting a lot of hot air running back in. I got some styrofoam insulation and cut it to size and made a hole for the ducting taped it off and called it good.
 

Attachments

Kratomist

Active Member
Try to straighten your ducting could be losing airflow that way.

Looks like the tent is kinda just sitting in a room? Do you have a.c. in the house? What temp is the room its sitting in at?

You could seal that hole ya got in your ceiling that would at least help keep it in the attic space. I did something similar for my tent but was getting a lot of hot air running back in. I got some styrofoam insulation and cut it to size and made a hole for the ducting taped it off and called it good.
It's inside of my bedroom, with ac and the Temps stay around 73. I think I'm just gonna move it to the laundry room, buy a window unit and exhaust the air outside that way I'll always have fresh cold air from the window unit to supply my intake fan.
 

highdave

Well-Known Member
It's inside of my bedroom, with ac and the Temps stay around 73. I think I'm just gonna move it to the laundry room, buy a window unit and exhaust the air outside that way I'll always have fresh cold air from the window unit to supply my intake fan.
Yes definatly get it away from the tent. Ducting it to the attic space worked for me. But like I said I had to seal it up.

Sounds like you gotta plan. Doesn't get hot and humid in there? Mine does but it's also attached to a garage and doesn't have a window.
 

420monster

Well-Known Member
Growing 2 Nothern lights, hoping they can take a little heat, I'm mostly worried about my seedlings, which haven't sprouted yet, still germing.
Got 4 northern lights in flower my temps rise into the mid 80's every now and then they don't mind the heat at all
the mistake is I was doing a side by side in mg soil and organic soil imo case closed since I'm getting nitro tox in flower even after a 2 month veg

Sent from my SM-J100VPP using Rollitup mobile app
 

Kratomist

Active Member
Got 4 northern lights in flower my temps rise into the mid 80's every now and then they don't mind the heat at all
the mistake is I was doing a side by side in mg soil and organic soil imo case closed since I'm getting nitro tox in flower even after a 2 month veg

Sent from my SM-J100VPP using Rollitup mobile app
Nice, I'm germing two Nother lights as we speak, using fox farm ocean forest and I'll be using the fox farm nutrient trio, good to hear that your temps get that high and they still do okay. I'm ready to start growing again
 

Kratomist

Active Member
Yes definatly get it away from the tent. Ducting it to the attic space worked for me. But like I said I had to seal it up.

Sounds like you gotta plan. Doesn't get hot and humid in there? Mine does but it's also attached to a garage and doesn't have a window.
My garage is open but the laundry room is closed off and has a window right above my dryer, and I'm sure it'll be pretty humid in mid summer but this grow should be done before then and I'm sure I'll have the money for a nice dehumidifier.
 

420monster

Well-Known Member
Nice, I'm germing two Nother lights as we speak, using fox farm ocean forest and I'll be using the fox farm nutrient trio, good to hear that your temps get that high and they still do okay. I'm ready to start growing again
I don't suggest letting them get that high if you can help it if not tho it happens but it defiantly will not kill them you will just have to water more often I have 2 blue mystic aswell (in organic soil) that are said to have northern lights that I wouldn't be embarrassed to show hahaha but they are very happy and I'm only about 30 days into flower

Sent from my SM-J100VPP using Rollitup mobile app
 

highdave

Well-Known Member
My garage is open but the laundry room is closed off and has a window right above my dryer, and I'm sure it'll be pretty humid in mid summer but this grow should be done before then and I'm sure I'll have the money for a nice dehumidifier.
Hell ya man get 'er done
 

Kratomist

Active Member
I don't suggest letting them get that high if you can help it if not tho it happens but it defiantly will not kill them you will just have to water more often I have 2 blue mystic aswell (in organic soil) that are said to have northern lights that I wouldn't be embarrassed to show hahaha but they are very happy and I'm only about 30 days into flower

Sent from my SM-J100VPP using Rollitup mobile app
Nice I really think I'll be able to drop the temp at least 4 to 5 degrees by venting out of the window and using a window unit and I'll run the light at night, I'll start at like 7 pm and left them go till 1 pm the next day before the hottest part of the day. Then from 1 to 7 have the light off, I think that'll work well
 

Carolina Dream'n

Well-Known Member
So venting it out of the window will help? This summer I plan on getting a window unit AC to keep the laundry room a constant 72 degrees.
If you plan on getting an AC do not vent out of your house.

When we turn on the central ac what's the first thing we check? Make sure the windows and doors are shut.

Running an ac and sucking that air right out is working backwards.

Set up the ac and vent the tent in the same room. Keep the door shut. You have created a lung room. You'll have more control of temps and actually use less power than venting the tent outside.
 

Flagg420

Well-Known Member
So my tent and light came in yesterday and I set it up about an hour or two ago. I'm having huge temperature problems, I cant get it to drop under 86F. I think my main problem is that I'm exhausting the heat from my light into the same room that my tent is in and because of that my intake fan is suckin in the same hot ish air and making the tent stay hot. Maybe if I move it to my laundry room and blow that exhaust air out of the window I can bring tempsdown some. What do you think? Tent is 36x20x62 with a 600watt hps lamp and air cooled hood. 240cfm exhausting the lights heat and the heat from the tent, 7" intake Honeywell fan blowing cool air into the tent, two 14" oscillator fans and a 6" fan blowing under the hood.
240cfm fan... inline centrifugal fan....... or a 'booster fan*' (*max speed when installed in a closed system with a main fan pushing it)

Go big on fans, always easy to put on a speed controller, not so easy to force more airflow than design allows.....

My early grow room used a 4" exhaust fan system to go outside, matches bathroom/laundry venting.... later did portable a/c vented out the window.... (warning, SMELL, cant filter this way)

You gotta vent somewhere, gotta have the 'fresh' air be cooler than the temps, and after a few hrs of lights, that may be tough... I would go with a window A/C unit in the room, a 400cfm 6" fan on the lights, pullin thru a filter....
 
Top