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Old 07-03-2008, 01:37 PM   #6
sed8ed
Seedling
 
Join Date: Feb 2007
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sed8ed is beginning to sprout.

Well I was very tired and very frustrated when I first posted this and I think I forgot a few
details... The room is in the far end of the house, no windows, concrete walls on 2 sides up past the ceiling... the two walls that meet the inside of the house and the ceiling of the room have been insulated and vapor barriered. Great room right??? NOPE, the first problem I ran into was there is only a 6x10 inch heating duct and a 6x10 inch cold air return inside the room, that is it for intake's and exhausts, I don't really want to break another hole in the concrete wall (I had to add a drain into the room, the sewer main runs directly below the room) in order to access the outside air, even if I did, digging a 6 foot deep pit outside the house is not on my dream list. Hence the reason for going with AC and CO2, I just couldn't find a viable method of ventilating the room.

Alleycat: my concern is that I can't get the temps below 78 with the lights off (lower density) as well as the fact that only 2 lights are on and the temps are 85+ (this morning they were 87) what happens when I fire up the other 600, the two 400 not to mention the 2 1000's

So until I go and get you pictures, here is the layout:
Alleycat:
3 - 600w on adjustawings over the first 4x8
2 - 400w (will be in a cooltube) over the 2x4
2 - 1000w over the second 4x8 on a light mover for better coverage
The only ballasts in the room are the digital 600's and they actually do put out no heat, they are cool to the touch after being on for 17 hours, however I discovered one problem with them, they wont ignite an hps bulb if there is more than 15' of 14ga cord between the bulb and the ballast hence why they can't be outside the room (lumitek ballasts)
As for timing of the cycles, yes I am running the lights during the coolest part of the day, come time for 12/12 I plan on running from 9pm to 9am

There is a can 50 carbon filter with an 8 inch vortex up in one corner of the room that is ducted back to the far opposite corner of the room (this is to reduce the amount of smell as well as to increase the air circulation in the room, it can be louvered to vent the room if necessary

Lou Cypher:
The portable ac is hooked up to the cold air return for an intake and to the heating duct for an exhaust (this utilizes a 6inch vortex to compensate for any back pressure from the heating system and it's long ductwork) It sits in the room.
Unfortunately the nearest window in the house is just over 31 feet from the closest point in the room so ducting across the living area and through someone's bedroom is not really an option

The 2 - 400w are in the only cooltube in this room, they are hooked up between the two existing ducts, these lights are in a 24" cooltube that is specifically made to house 2 - 400-600w lamps

There are 8 oscillating fans in the room

The heating duct is blocked off in each bedroom in the house and is modified in the furnace room to dump the excess heat up the chimney

I have a 2200cfm squirrel cage blower from a previous grow and a can 150 filter, I am going to try ducting out the door into the upstairs to see if it can lower the temps (crosses fingers)
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Lou Cypher (07-03-2008)