Cutty Starks

New Member
I'm planning on setting up 3 4'x9'x9' rooms. Each next to eachother on their long sides. I want the rooms a little bit bigger than the light footprint to give me some elbow room to work with hence the room sizes. 2 rooms will have 2 315 sun system lec each with Co2 alternating veg/flower schedule while the third room is for mother plants and cloning and will also have 2 315's. I plan to both veg and bloom in each flower room so I don't have to move plants around much (bad back). So I basically take cutting from the mother plants and put in hydrocodoner and once they have good roots move them into the room they will flower in and begin their veg cycle. One month later I fill the next room so that every month I harvest a room. I want all 3 rooms to share AC as I have a more than powerful portable dual port AC to cover all 3 rooms. I already have a ceiling vent for excess heat to be drawn up an out the roof.

I was thinking I could put in-line fans from one room to another to exchange air at the top of the rooms. Any input or advice would be much appreciated.

My questions are:
1. What would be the best way to vent the rooms to share AC/Dehumidification?

2. Do I need to vent fresh air in as well or can all 3 rooms remain sealed?

3. Will sharing AC disrupt my Co2 in the flower rooms (Co2 only run during their flower cycles)?
 

xmatox

Well-Known Member
I'm planning on setting up 3 4'x9'x9' rooms. Each next to eachother on their long sides. I want the rooms a little bit bigger than the light footprint to give me some elbow room to work with hence the room sizes. 2 rooms will have 2 315 sun system lec each with Co2 alternating veg/flower schedule while the third room is for mother plants and cloning and will also have 2 315's. I plan to both veg and bloom in each flower room so I don't have to move plants around much (bad back). So I basically take cutting from the mother plants and put in hydrocodoner and once they have good roots move them into the room they will flower in and begin their veg cycle. One month later I fill the next room so that every month I harvest a room. I want all 3 rooms to share AC as I have a more than powerful portable dual port AC to cover all 3 rooms. I already have a ceiling vent for excess heat to be drawn up an out the roof.

I was thinking I could put in-line fans from one room to another to exchange air at the top of the rooms. Any input or advice would be much appreciated.

My questions are:
1. What would be the best way to vent the rooms to share AC/Dehumidification?

2. Do I need to vent fresh air in as well or can all 3 rooms remain sealed?

3. Will sharing AC disrupt my Co2 in the flower rooms (Co2 only run during their flower cycles)?
To answer your questions

1. what size ac do you have. I had the biggest portable you can buy and it couldn't manage the heat of 1000 watts. Dividing into three rooms isn't gonna work, I promise you. But if you insist, do a vent split from the portable. First, get a stack boot and rig it up to the outlet of the portable ac. Look for a 6 inch or 8 inch (depending on your ducting size). Buy a Y split in the same size you got the stack boot. Get good vent tape to help connect these.( links to find this stuff at the bottom) Do this one more time and you could have as many splits as your hearts desires. Again, a portable isn't powerful enough, and 2 of the rooms will suffer.

2.If you are running a sealed room you don't need to vent. Problem is you're pushing air into your room from the portable, you will have to exhaust the air somehow. It's not like a mini split that will recycle the air. You are pulling new air into the room from your portable. This now means that maybe co2 isn't necessary because you will be wasting it if you have to exhaust. You can set an exhaust up on a timer and only do it once every 30 minutes or so ( you will have to adjust to your setup). This would allow more co2 to stay in the room. You could also get a co2 reader and see what your room looks like before you buy co2. Normal co2 in the air is enough to grow. So maybe you wont waste co2 from a tank or burner.

3.I'm not sure what you mean by disrupt your co2. I think I may have answered that in number 2.

links

Stack boot- http://www.homedepot.com/p/10-in-x-3-1-4-in-to-4-in-Stack-Boot-SB10X3-25X4/100129949

Y-split - http://www.zenhydro.com/ideal-air-wye-branch-6-in-x-6-in-x-6-in-12-cs.html?utm_source=google_shopping&gclid=CjwKEAjw34i_BRDH9fbylbDJw1gSJAAvIFqUUrQTdc5iWEML5yBNMSQG8HMC2BPBe5x5zWHgWi-pmBoCw-Dw_wcB
 

Cutty Starks

New Member
Thankyou that's great info. I have to check my type of portable AC in a bit as I don't remember off hand but each room Wil only have 630 watts of lec so heat shouldn't be too big an issue but will need to manage humidity levels here in the rainy PMW. Can also run a window unit if necessary which I've been leaning towards to save floor space. I figured the venting will just be between the two flower rooms so they share AC AND Co2. Probably via 10" vents with fans both top and bottom of room with one side blowing into the room next to it with 2 more vents with fans on opposite side pulling air from the far room to the AC room to get good ventilation between the rooms and can definitely add timers and back draft deals to prevent air/Co2 exchange. My buddy said he doesn't use AC in his veg anymore with the lec so I may be able to get by with leaving the AC for the flower rooms only but if necessary adding AC there won't be an issue as I may just window AC the flower rooms and move the portable to the veg room. One room is next to a window an already setup to exhaust the portable AC
 

Cutty Starks

New Member
I'm currently just using the last growers room that's 9'x46.5"x9' and so far no need for the AC with just one 315 lec
 

bottletoke

Well-Known Member
You can get portables that work with sealed rooms, look at the units with 2 hoses. They will work and they will only recirculate the air in the room, not exhausting or adding air. One hose takes outside air and blows air over the condensor and it exits out the second. The condensor is sealed off so only your room air goes into the ac unit and over the evaporator coil then back into the room.
 
Top