Alright so I have been growing for a few years and am about to set up a new flower room. We are going to be framing a room in the garage. The size of the room we are going to fram is going to be 18x13 with 10 foot ceilings. I currently grow in CAP ebb and grow buckets and love it...This room is going to have 8 1000 watt hps air cooled lights with 8 inch holes..There is a possibility the lights will be on movers also..My plan as of right now is to have 2 rows of 4 lights with one 8 inch can fan max fans aircooling the hoods. One can fan max for each 4 lgihts. I also plan on running another 8 inch inline fan for my intake..My main question is cooling the room. My first thought is to get a couple of portable ac units..How many btu will be need to keep this room between 75-80 degrees?Or do you think a better route would be to get a couple big 12 inch fans to exhaust the room?Power will not be a problem i will have a 100 amp sub panel for this room alone..I really want to make sure that this room is set up properly so i have no heat issues what so ever. I have no expierence what so ever with ac units..All of my flower rooms have been cooled with fans alone. Any input would help a lot construction will be starting in 2 days..I will put pics up for anyone interested......
Setting up new 18x13 foot flower room..Got a Couple cooling questions..
- Thread starter bigbacon2
- Start date
fred flintstoned
Well-Known Member
You need to seal the room and use a BIG ac or vent with a large fan. Exhausting conditioned air is a BIG power waste you don't need. If you're building from scratch, this is an excellent opportunity build a sealed room.
If you can effectively cool the lights, I suspect a 24k ac unit will do the trick. Of course you'll need CO2 injection.
Production should outpace a vented room. I went sealed a few years ago and will never go back. Complete environmental control is the key for lazy growers like me! Less bugs, temp stress, grower stress!
Fred
If you can effectively cool the lights, I suspect a 24k ac unit will do the trick. Of course you'll need CO2 injection.
Production should outpace a vented room. I went sealed a few years ago and will never go back. Complete environmental control is the key for lazy growers like me! Less bugs, temp stress, grower stress!
Fred
fred flintstoned
Well-Known Member
Sealing the room means exactly that.Tightly sealed doors, panda walls with taped joints. No air in or out. Air to cool the lights comes from outside and exits there also. Never mixes with room air.
A fan sitting on top of a filter cleans and recirculates room air. CO2 injection. AC units and dehummers controlling temp and humidity.
Don't know much about portable ac's other than what I read. Seems the two hose types are best as they exhaust their heat out of the room. They're also supposed to be good for containing smell. I use window units mounted in the closet doors with a box on the back that exhausts through the attic. If you effectively cool the lights you will remove approx. 60-70% of the heat. 24000 btu should do the trick if you consider a 1000w lamp generates 4000btu of heat. They would probably be able to handle more than 8000w.
Fred
A fan sitting on top of a filter cleans and recirculates room air. CO2 injection. AC units and dehummers controlling temp and humidity.
Don't know much about portable ac's other than what I read. Seems the two hose types are best as they exhaust their heat out of the room. They're also supposed to be good for containing smell. I use window units mounted in the closet doors with a box on the back that exhausts through the attic. If you effectively cool the lights you will remove approx. 60-70% of the heat. 24000 btu should do the trick if you consider a 1000w lamp generates 4000btu of heat. They would probably be able to handle more than 8000w.
Fred
Thanks that was informative, i still have a couple questions though..
I have always pulled air through my lights and out of the room, but have started to notice a smell from the room air getting pulled into the cracks of the hoods. So if i made a straight line with air pulling air from my garage and pushing it through the lights then out that back of the garage, would this work and be affective enough?
Also does anyone have any recomendations for which ac unit or units i should go with? I would like to be able to buy them on craigs list or something to be able to save a little money.
Also the fan and filter scrubing the air in the room has no duct leaving the room correct? What size cfm should the fan and filter be for just scrubbing the air? the room will be about 2400 cubic feet, will the 12 can fan max that has a cfm rating of around 1700 work with a can 150 filer?
Is there no intake whatsoever coming into the room?
Thanks again everyone..
I have always pulled air through my lights and out of the room, but have started to notice a smell from the room air getting pulled into the cracks of the hoods. So if i made a straight line with air pulling air from my garage and pushing it through the lights then out that back of the garage, would this work and be affective enough?
Also does anyone have any recomendations for which ac unit or units i should go with? I would like to be able to buy them on craigs list or something to be able to save a little money.
Also the fan and filter scrubing the air in the room has no duct leaving the room correct? What size cfm should the fan and filter be for just scrubbing the air? the room will be about 2400 cubic feet, will the 12 can fan max that has a cfm rating of around 1700 work with a can 150 filer?
Is there no intake whatsoever coming into the room?
Thanks again everyone..
fred flintstoned
Well-Known Member
No air in, no air out. If you smell something in the light exhausts. you have a leak. Tape,tape and more tape. Straight runs on ducting are the key to efficiency.
Even at 2400' an 8" on a filter should do the job. It's what I use, although my rooms are only about 1500' each. Never smelled anything anywhere in the house. Believe me I would hear about it, my old lady has a nose like a beagle!
Fred
Even at 2400' an 8" on a filter should do the job. It's what I use, although my rooms are only about 1500' each. Never smelled anything anywhere in the house. Believe me I would hear about it, my old lady has a nose like a beagle!
Fred
mydixiewrecked
New Member
a mini-split or ductless is the perfect solution, and you don't need a pro, it's easy to install, search ebay for ductless a/c. you'll need a minimum of 3 tons or 36,000 btu for that much light. ideally 2 24,000 btu units would be how I would do it.