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Vertical bare bulbs without ac or co2?

SMARMY ARMY

Member
Wuzup folks.

I currently grow in a spare bedroom. It's 11' x11'. I'm running 2 1000w hps in air cooled hoods. It takes up almost half the room. Theres also a walk in closet that i have a darkroom tent in for my moms.
A friend of mine has been talking to me about hanging the bulbs vertically with no reflectors. I like that idea, my concern is the heat. My plans are to grow 6 trees, using about 11' x 8' of the space. I wanna hang 8 600w bulbs around the plants. now my boy uses a window ac to cool the room along with co2, i cant do that cuz a window unit would stick out like a sore thumb in my neighborhood. I dont wanna use a portable ac cuz they suck. The room is connected to the central ac of the house though.

Do you think i can run those lights if i just use a huge inline canfan and filter to cool the room along with the central ac? I was thinking alot of airflow , like 3 wall fans and maybe one of those small cyclone fans blowing up under each bulb. Obviously no co2 since im gonna be running a passive exhaust.

Does anyone here run vertical lights without ac and co2? if so, tell me about your set up.

Or should i stick to the aircooled hoods and just add 2 more 1000watters?

Thanks
 

turbolaser4528

Active member
Veteran
Interested in this as well.

You'd have to exhaust a lot of air to keep that room cool, where would you be pulling it all from? jw

I wonder in the summer when outside temps hit 90*F, how does one keep the room cool??

Even if one has A/C won't that just get sucked out of the room with the exhaust? jeeze..

gl :wave:
 

Grizz

Active member
Veteran
unless you can keep it cool enough with your house ac i would stay with your hoods and keep that hot air going out of your room, sog or scrog might be a better system for you, all those bare bulbs are going to bring temps up
 

Lazyman

Overkill is under-rated.
Veteran
Passive exhaust is probably not going to work, you need active exhaust and active intake to effectively cool a room. I doubt it's 90*F at night so run your lights at night of course, but I air cool 16KW flower and 3KW veg with no AC and bare bulbs. It takes ~4300CFM of exhaust and 1000 cfm intake to do so, I should have more intake fan but I keep the room around 77*F when the lights are on with no trouble. If it gets too hot I dim the ballasts til it cools down (during heat waves that last several days.)
 
D

DHF

Lazyman....the hardest workin grower I know of that can do what Heath and I`ve preached for yrs with lil to no a/c and major air exchange....and on a BIG setup.....:tiphat:......LM.....

You`re my fuckin hero....Run lights at night of course in summer.....but......whatchas gonna do with flip rooms when the lights run 24/7.......

Get more environmental control........Overkill A/C for redundancy and piece of mind IME....

Environment`s everything for consistent production....Overkill`s underrated....Word.....

Peace....DHF....:ying:.....
 
D

DonkDBZ

I did 4 bare 600's and 3 1000's in cooltubes. With a 10" duct booster as the intake and a 8" valuline as the exhaust. temps hit 85 on a few hot days but otherwise stayed 78-81.

I got very creative with the ductwork though.



I put dampers on the inlets to evenly distrabute the fresh air throughout the room
 

turbolaser4528

Active member
Veteran
when it gets real hot, do you slow exhaust while upping a/c?

or do you just let all the a/c air get exhausted? and run em both heavily? so confused...lung rooms? whole concept I cant seem to get
 

zor

Active member
turbo, i think dhf's lung room he refers to is a the 'room' that his pods use to sit him and draw intake air from. I believe based on his posts that he had AC running in those lung rooms. So imagine a bedroom with an 8x8 tent inside it. The tent is exhausted using a fan, but the bedroom is cooled using an air conditioner. I use a similar setup.

Without this type of 'lung' room to intake and exhaust your air from, any type of AC would be very innefficient and probalby cost more than its worth.
 

mg75

Member
turbo, i think dhf's lung room he refers to is a the 'room' that his pods use to sit him and draw intake air from. I believe based on his posts that he had AC running in those lung rooms. So imagine a bedroom with an 8x8 tent inside it. The tent is exhausted using a fan, but the bedroom is cooled using an air conditioner. I use a similar setup.

Without this type of 'lung' room to intake and exhaust your air from, any type of AC would be very innefficient and probalby cost more than its worth.

do you exhaust the hot air from the tent outside the room (outdoors) or you let the hot air back into the bedroom for the AC to cool?
 

turbolaser4528

Active member
Veteran
do you exhaust the hot air from the tent outside the room (outdoors) or you let the hot air back into the bedroom for the AC to cool?

and if so, where is the fresh air exchange in all of this ?(aka Co2 from outside?)

I ran this lung room in an apt. involuntarily, but they didn't have co2 except for me sleepin with the ladies, and when I opened the door.

How does one get high fresh air exchange AND use A/C properly?
 

jgrow

Member
Turbo Ive been wondering this for the last few days! Ive never had to use ac to cool my room. I will soon so i'm figuring it out now.
 

Lazyman

Overkill is under-rated.
Veteran
If your room gets too hot with the AC on, your AC is too small or you have too much light (heat.) A properly sized AC will keep your room cool with the lights on. If it doesn't, running it is just wasting power while your fans blow the poorly conditioned air outside.

If your room is sealed and uses AC only for cooling, you must supplement CO2 with either tanks or a generator to keep CO2 levels from dropping below ambient.

There is no halfway air conditioned or halfway sealed room, it's sealed with AC and Co2 or air cooled with neither. Gotta pick one side!
 

zor

Active member
do you exhaust the hot air from the tent outside the room (outdoors) or you let the hot air back into the bedroom for the AC to cool?

back into the same room the ac is in. So yes, the AC cools the hot air from teh tent.

Co2 can be supplemented in the lung room, however, i have never used co2 in this type of setup and never had any problems as the 'lung room' was not completely sealed (cracks under the door etc) adn teh door would be open a few times a day.
 

turbolaser4528

Active member
Veteran
If your room gets too hot with the AC on, your AC is too small or you have too much light (heat.) A properly sized AC will keep your room cool with the lights on. If it doesn't, running it is just wasting power while your fans blow the poorly conditioned air outside.

If your room is sealed and uses AC only for cooling, you must supplement CO2 with either tanks or a generator to keep CO2 levels from dropping below ambient.

Ok, got it.

There is no halfway air conditioned or halfway sealed room, it's sealed with AC and Co2 or air cooled with neither. Gotta pick one side!

Never !!


Howabout yourself lazyman, you run bare bulbs and exhaust your air. Can I scale this down to bedroom size with 2 x 1200w (4x4) vert. tents?

What about the inherent risks of venting scrubbed air outside? Ozone, frequent scrubber refills/exchanges, muffler, stealth exhaust port?

Need to stay safe, you know?
:)
 
If your room gets too hot with the AC on, your AC is too small or you have too much light (heat.) A properly sized AC will keep your room cool with the lights on. If it doesn't, running it is just wasting power while your fans blow the poorly conditioned air outside.

If your room is sealed and uses AC only for cooling, you must supplement CO2 with either tanks or a generator to keep CO2 levels from dropping below ambient.

There is no halfway air conditioned or halfway sealed room, it's sealed with AC and Co2 or air cooled with neither. Gotta pick one side!
that last part is not my experience. i use an ac with no co2 most of the time.. when the weather is right i open the door,use fans and or ac..works great..just my experience.
 

Hammerhead

Disabled Farmer
ICMag Donor
Veteran
I have my walkin with 2 600 bare bulb vertical. There is a h33 6" scrubber mounted high. There is a Portable A/C in it with a 6" inline for intake. I use the A/C exhaust with a can 9000 scrubber on it that goes out the window.
 
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Grizz

Active member
Veteran
back into the same room the ac is in. So yes, the AC cools the hot air from teh tent.

Co2 can be supplemented in the lung room, however, i have never used co2 in this type of setup and never had any problems as the 'lung room' was not completely sealed (cracks under the door etc) adn teh door would be open a few times a day.

thats wrong in my book, get that hot filtered air out of the room, why keep the room your tent is in hot, makes no sense,
 
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