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Urgent help needed!!! Fast! - please.

TGT

Tom 'Green' Thumb
Veteran
I have ran into a major problem lately that needs to be fixed as soon as possible. As some of you might know I set up a grow room about eight months ago. It consists of 4 - 1000 watt HPS with bare bulbs vertical style. The room is sealed really well with B&W Panda Plastic and has an Elicent 200B fan exausting through a Can-100 Carbon Scrubber. This creates a vacuum in the room that allows no unscrubbed air to leave without first going through the scrubber. New air is pulled through structural leaks in the room and through the cold air vent. I relocated the return vent from the grow room to the next room over so no unscrubbed air would circulate. The scrubbed air is ejected out of the room to the joining room allowing me to have no air leaving the house thus being more stealthy. I am using the central air conditioner to cool the house and room and it has kept both perfect all summer with the way it is set up described above.

My problem is now that the colder weather is coming it seems with the way the room is set up the central air conditioner still needs to be running to keep the house cool for living and growing. At night when the lights come on the house gets so hot we need to put the air conditioner on just to be comfortable up stairs. The grow room also gets too hot. I wouldn't mind running the air all winter, but it looks weird to the neibours and I am worried it is going to raise a red flag. What the heck do I have the central air running when it's 15 degree's celcius out?

I am sure this set up will be okay when it gets really cold out, but right now it's inbetween and causeing me much stress. So much so that tonight I unplugged the lights early so I could shut off the air. The neibour will be leaving for work soon and I don't want him to see it running when it is so cold outside. Every other day has been warm enough to justify air, but tonight it's damb cold out! I don't want to take any chances. I have done everything perfect up until now and I don't want to loose my 'piece of mind' if you know what I mean. I need to fix this problem tomorrow so that I can get my plants under a regular routine. I don't want to screw things up now as they are three weeks into bud and looking great.

I have thought of a couple solutions that might work. I was thinking of getting a fan smaller than my carbon scrubber fan to pull cold air in from outside and disperse it up high into the room. If my exaust fan is larger than my intake fan I still should be able to keep a vaccum in the room to prevent smell. Do you think this will work?

Any suggestions would be greatly appreciated as I am so worried and have to think of something for tomorrow. One night of lights off is okay, but I can't do it too often. So the sooner I fix this problem the better. Thanks in advance and I hope someone can help me! - soon please.

TGT
 
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ItsGrowTime

gets some
Veteran
Welcome to dialing in your room! If it gets hotter in living quarters just wear less clothes. I have the same issue with temps moving up and down but without A/C (hard to describe). These plants, weeds, are made for it tho. Big circulation is key IMHO. Get stronger fans in your room and circulate the air more. They can tough it out until ambient temps come down.

(btw, I find that 14/10 works ok for veg..18/6 is overrated...been thinking about starting a thread on it.)
 

toohighmf

Well-known member
Veteran
what if??

what if??

you completely sealed the room, intake, exhaust, etc. and let no air escape the room. let the carbon scrub the room. If the room is completely sealed, how would odor leak? perhaps running a mini split AC where the exchanger can be placed anywhere out of view from neighbors and all you need is to drill 1-1/2" hole in the wall of the room for the connections to the condenser. get yourself a Co2 tank, regulator and controller and run a true CEA room. It's either that or take the gamble with odor and the central air...
 

TGT

Tom 'Green' Thumb
Veteran
Thanks for the reply. I am going to try to cool the room with outside air for now and see how she does. Just by adding the new intake fan I should improve air circulation greatly. I just have to be careful to not input more air than I am exhausting. I need the vacuum in the room to prevent smell from sneaking out into the living area's of the home.

I would like to try vegging for 14 hours to see how it works. Really it won't help out the heat issue for me as I only bud at this place. But thanks for the info. I would love to see a thead on it, so I'll be looking forward to it. Thanks!

Any other input appreciated.

TGT
 
try running your furnace fan 24/7. This will not solve all your problems but should help get temp a couple degrees cooler without ac running.
 

TGT

Tom 'Green' Thumb
Veteran
Albert Hofmann said:
try running your furnace fan 24/7. This will not solve all your problems but should help get temp a couple degrees cooler without ac running.

I already tried to leave the fan running and it made the room a little cooler but heated up the living area. Thanks for the input though! I think I might leave it on when I have my new ventilation setup.

TGT
 

TGT

Tom 'Green' Thumb
Veteran
gdawg said:
later on down the road maybe air cool the lights.

I have the air cooled lights, but I prefer the hoodless vertical setup for production. I have done both and find I get a better yield out of bare bulbs so if I can get away without using the hoods I will. I posted a pic of the hoods I purchased. If I am not forced into using them I will donate them to someone in need. Thanks for your suggestion, it might be that I will HAVE to use them unfortunately. We will see.......



TGT
 
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TGT

Tom 'Green' Thumb
Veteran
Wow, I just did three of my own posts in a row! Not all in the same day so I don't feel too silly. Anyways, tonight I put 6 inch ducting from outside to inside the grow room and have cool air being dumped right in the top middle of the ceiling over the lights and plants. It's powered by a squirel cage fan that is powerful, but not as powerful as my scrubber. Seems to be working well, but we will see after a few hours........

Anyone have any experience fooling with grow room temps, please chime in. It's been a while and I thought I would get more response on this thread.

I'll know if my new intake works by 8 in the morning, so I got my fingers crossed. Wish me luck!

TGT
 
goodluck tgt, sorry i can't really give any solid advice... but i would look at some portable a/c units, like a window unit, this is if your new intake doesn't solve the problem...
again goodluck, you got it under control.. don't lose that piece of mind!
 

TGT

Tom 'Green' Thumb
Veteran
This is an rather old thread, but I just wanted to update how the room was doing with the new fan. The temperatures during lights on never get past 80 degrees F. Before I set up the fan the temperatures would sometimes reach as high as 90! At night I have it timed to shut down a half hour before the lights go off to warm it up a little. The night temps are now steady at 70 degree's F. Much different from the previous night temperatures of 80.

I have so far done 3 grows of AK47 in this room and each has turned out great so far. There has been a lot of tweaking, but now I seem pretty sure of myself. I posted a few pic's of my current grow below. It is 5 and a half weeks into bud and already they are looking impressive. I Can't wait to see the finished product.

Thanks for all the help you guys/gals gave me when I needed it. I would have had to experiment much more than I did to get to where I am today without all your help. Thanks again!









TGT
 

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