Sealed Grow Room a/c question.

Jack*Herrer420

Jack*Herrer420

Well-Known Member
Hey guys, I'm planning on making a sealed grow room with 4 1ooow lights, an electric ignition co2 generator and an ac. I've heard to use 3500 btu a/c / for each 1000w, but I'm not sure. I also heard that co2 generators produce a lot of heat and humidity. Is this also true with the electric ignition generators? I will also be using a dehumidifier. So would a 14000 btu ac work? The room dimensions are 10 L x 8 W x 8 H.
 
5280blazin

5280blazin

Active Member
First of all no i seriously doubt a swamp cooler will do you any good even if you live in a extremely dry city it simply doesnt have the cooling power. I am using a 3500 btu ac unit and it works fine even with my box being out in a 95 degree garage it keep my box which has simply a shitload of flouro at about 75 degrees. so yea 14000 im pretty sure will do you fine you should run sealed cool tubes around each light along with the ac and you'll probably be fine with 3500btu like me.
 
5280blazin

5280blazin

Active Member
also a swamp cooler will just make it humid as hell which will cause you all sorts of problems otherwise. Ac drys out the air in its own so you shouldnt need a dehumidifier.
 
i grow everglades bud

i grow everglades bud

Well-Known Member
yup i agree with blazin an a/c dehumidifies good and if not then go buy one and throw here in there, swap coolers..... not a good route. your gonna need a carbon filter. good luck buddy im workin on a room too! a lot bigger tho lmao
 
Treeth

Treeth

Well-Known Member
don't waste all that energy with the ac just to cool down those lights...

get cool tubes first.

this will help your ac stay on top of the propane burner, which shouldn't have to run too often if you do a good job sealing the place,

ideally, the ac and co2 should run as,... sparingly as possible,
you really just need to tube your lights to get closer to the perfect climate equilibrium.

copacetic?

bien venidos!
 
Jack*Herrer420

Jack*Herrer420

Well-Known Member
hey thanks for the replies. I think I'll go with the 14000btu ac. Also , would I need a carbon filter in a sealed grow room. Im not that worried about the smell. I like it.
 
Jack*Herrer420

Jack*Herrer420

Well-Known Member
hey treeth, i was posting while you were so I didn't read your response. Im not to familiar with cool tubes and how they work. If they would help me with temp then im all for it.
 
MasoMystic

MasoMystic

Member
Yeah what are these cool tubes you talk of? Ive read something about them else where as well and they got my interest for sure.
 
Treeth

Treeth

Well-Known Member
i like to think of it as,... an intestine for your hot hood air.

-fact. hids make a ton of heat. More heat than anything else in your grow. well, wouldn't it be great to take your hps light outside the room to use it?

using enclosed hoods, ventilation ducting, necessary high CFM air movers, ... and you can use outside air to cool your lights. and kick that hot used air back out of the room.

just as your intestine is tube which is outside you body, as to put the right kind of cells between you and that environment.

keep the hids outside your sensitive environment, cool tubes are one way, also easy are the more expensive enclosed hoods.

much smarter than brute force a/c
 
cyborg

cyborg

Well-Known Member
the cool tube is exactly that. Its like a glass tube they come in different sizes but the diameter of the tube is like 4-5 inches or sumthin. The tube has the light inside, and both ends are open so that you can attach a carbon filter, some ducting, and a strong inline fan. The tube lets you push the hot air from the bulb out so you dont have to vent. It lowers temps, but if it doesnt enough then youde have to have a seperate ducting for air exchange inside your room
 
Jack*Herrer420

Jack*Herrer420

Well-Known Member
hey thanks for the replies guys. I did a little research on the cool tubes and this is my take. Cool tubes are better for small tight spaces and dont have an even light distribution. Also, the light from the cool tube gets absorbed alot before it is even released. I also dont really plan on having any ventilation. I dont want to have to ventilate my lights. So, as of now, I think that having a strong ac to fight the temps is all ill do.
 
TriggerFinger

TriggerFinger

Active Member
I have a 1000w HPS in a cool tube for my flowering room and an open bulb 430w hps for my veg room.
I need to keep my AC unit cranked and running 24/7 just to keep temps under control under the 430w.
If I was doing it again I would go with another cooltube and let my AC kick on only when it needed to.
Its cheaper to run a cooltube than a AC unit for sure.
 
Jack*Herrer420

Jack*Herrer420

Well-Known Member
what about ventilating for the cooltubes. If I had a sealed room with co2, ill keep the temps around 85 F with an ac. And I heard that cooltubes work best when hung vertically.
 
Jack*Herrer420

Jack*Herrer420

Well-Known Member
Do you keep the ventilation on constantly, or is it hooked up to a controller that turns it on at a certain temp? If I had a good ac, i could have 1000 watters in reflectors, with no glass, and no ventilation, and get the most lumens/sq ft out of that light. Cooltubes do keep it cooler, but it also takes away from the strength of the bulb.
 
TriggerFinger

TriggerFinger

Active Member
I have my plants inches from my cool tube, I'm not sure how close you could get your plants to an open bulb. Closer the better.
I have my room sealed with Co2 and the cool tubes vent from outside the room straight through and out of the house
 
Jack*Herrer420

Jack*Herrer420

Well-Known Member
The problem is that I dont have any room or anywhere to vent the hot air. If i did vent it, it would be vented to the room where the cold air is supposed to be. It would be constantly running the same hot air over the lights.
 
TriggerFinger

TriggerFinger

Active Member
That is a problem, although hot air blown over the light is better than no air, 1000 watters get hotttttt with out active cooling
 
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