Hey guys does anyone know how to air condition a grow room my temps are around 90 degrees.. I have 7 1000 Watters running with plans for more if I can get the heat under control. Right now I have a 10 inch carbon filter and fan sucking air from one end and two 6 inch hole for air intake with no fans. Will my filter/fan suck more air I put a tee piece of ducting on it and suck air from two holes instead of one ??? and/or maybe add another intake hole ?? any help would be awesome.. Thx
Heat problem how do I set up air conditioning??
- Thread starter sillyc2
- Start date
ScoobyDoobyDoo
Well-Known Member
if you are gonna do more lights i'd get rid of the exhaust fans and put an a/c in. you can get window units pretty cheap. a step up would be a mini spilt. i can't believe you keep it that cool with 7000w and no a/c right now. if you add a/c then you can vent your lights but you don't want to have intake and exhaust vents. plus, if you add a/c you can add Co2.
I was thinking initially that alot of air flow would take care of the heat lol clearly a mistake I'm still pretty new to this stuff. I have an area where I bring in my air that's pretty big can I put the a/c right beside my intake and have both going bringing in air from outside ??
Ou8aCracker2
Well-Known Member
When it comes to active exhaust/passive intake,it's all dependant on
1) Temp of intake air
2) Airflow/CFM.
I'd look into minisplit ductless a/c's,and a thermostat to run the fan on.
IMO,when doing large grows you should always build a CGE/sealed room,running minisplit ductless a/c during the day as well as a c02 generator/burner.Ventilation fan at night to exhaust unused c02 (plants don't use it during lights off and expell any c02 it didn't digest during the day),and also to remove humid stale air (humidity skyrockets during lights off).
Of course you could skip ventilation and use dehumidifiers and humidifiers to dial it in but you better plan on a bigger a/c as the dehumidifiers and humidifiers will add heat to the grow room.
1) Temp of intake air
2) Airflow/CFM.
I'd look into minisplit ductless a/c's,and a thermostat to run the fan on.
IMO,when doing large grows you should always build a CGE/sealed room,running minisplit ductless a/c during the day as well as a c02 generator/burner.Ventilation fan at night to exhaust unused c02 (plants don't use it during lights off and expell any c02 it didn't digest during the day),and also to remove humid stale air (humidity skyrockets during lights off).
Of course you could skip ventilation and use dehumidifiers and humidifiers to dial it in but you better plan on a bigger a/c as the dehumidifiers and humidifiers will add heat to the grow room.
Ya the problem is I've spent alot already and underestimated the costs of things, I can't really afford to buy much more equipment. Can I put an a/c in the window right in the grow room?? Will the that even help?? The other thing is I'm in Canada and it's cold here isn't more air flow just like a/c right now??
superstoner1
Well-Known Member
Dude, summer is going to kill you. Great advice already given.
By summer time I'll have a huge crop off already and ill buy more equipment. And it's a legal grow so if need be ill just keep adding more and more ventilation till its cool even if my spot stinks. Anyways if anyone can answer if it will help with a window unit or two?? And if my idea of turning the venting off when the airs on makes sense or not?? It would be greatly appreciated. Great advise already given ya but not quite an answer to my questions lol Thx
ScoobyDoobyDoo
Well-Known Member
if you get a/c then shut all the exhaust and intake vents. you won't loose anything significant through a window a/c as cars as smell or Co2. they are closed loop systems.
Red1966
Well-Known Member
The outside air in Canada is plenty cool. You don't need A/C. You do need more intake area, 2 x 6" holes won't flow as much air as a 10" hole. Those holes should be connected to an outside air source. 7 x 1000w is a lot of heat. You should add another exhaust, filter,and intake, maybe a 8" exhaust. There are calculators available here somewhere that will tell you how much you need. I think it's like 3-5 times the volume of the room every hour? You would need about a 35,000 BTU A/C to cool just the lights (@ 5,000 BTU per 1000w light). They don't make window units that big. To A/C the room means you'll need to seal the room and add co2. Investing in cool tubes or hoods will drastically ease heat problems. I tested a bare bulb 800w set up with a 5,400 BTU A/C (ran nearly constantly) and the humidity dropped below 14% (the lower limit on my gauge) in an hour with no plants in the tent. Temp at the top of the tent was 80 deg. and 95 deg. 18 inches horizontally from one of the vertical 400w bare bulbs. (Mostly from the infrared, I think) Cool tubes fixed the problem, even allowing me to crank them up to 1200w and the A/C only running intermittently. I could also disconnect the A/C entirely and just vent to the room, allowing the central A/C to remove the heat. This was in 95 deg ambient temps out doors. As cold as it gets in Canada, you will need some king of thermostat on your fan(s) so you don't freeze your plants.
ScoobyDoobyDoo
Well-Known Member
No point in my opinion. The idea behind an a/c is to seal your room. Having an open vent just creates the possibility that mold, mildew, pathogens, bugs, etc...can get into your room. The air quality will be fine.
Ou8aCracker2
Well-Known Member
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