Setting up new room (ventilation???'s)

[beatster]

Ok so we got some supplies and have started construction on the new setup...Me being a new grower, I wanted to post some pics get some feedback on the ventilation.... the wall that is up now will be used for our flower room it will have 2 windows in it as you can see.. we are debating how we should set up the ventilation... we will be purchasing 2 1000 watters (w/ cool tubed hoods) too for this room, we have a window ac unit too we can use... the flower room is 81 inches in width.. 127 inches in length so over 6 ft by 10 ft..

So my question for yall is how would you set up the ventilation..?? The most efficient way possible price not being an option, just wanting to best way to know how to control the environment

 

[freeworldorders]

Looks like a awesome room ya´ll building there, good luck guys.
I dont know how helpful you find this , but i would put a intake at the bottom at the room (for fresh an cool air) and an outake from the window to the cool tube, i would put a carbonfilter at the end of the cooltubes. So the hot and "smelly" air would ventilate trough the the carbonfilter, through the cooltube and finally out the window. Not saying its the perfect way but works great for me. You could also try one of the DYI on on IC.
http://www.icmag.com/ic/showthread.php?p=678179

 

[reckon]

cold air IN down low.
Hot air OUT up high
get the heat of the lights OUT of the grow space, so for cool tubes, I'd intake fresh outside the grow room air, through the tubes, and out through a carbon scrubber pack,.....and after looking at that room, I'd intake air through one window, through the tubes, and out the other,....you'll need an inline fan at the exhaust end, and probably TWO inline boosters, just make sure the exhaust has more CFM's than the intake boosters combined, or you'll INCREASE the pressure in the lights, and force hot air out of cracks, and into the grow space. I'd also probably add enough oscillating fans inside the grow space to raise the air pressure inside the grow area HIGHER than the rest of the apt, so your not constantly sucking in lint, dust, oils, hair, etc,.. INTO the grow space,...with positive pressure inside the grow space, air wants to flow OUT of the space, so your plants get less dust on them (especially since 90% of household dust is YOUR sloughed off skin cells/particles)

TWO 1000 watt lights will draw nearly 20 amps, make sure you have a panel/breaker/wiring that will handle that,...I was told long ago by a VERY GOOD SPARKY, "never load more than 75% of capacity",...so if you have more stuff, you need to add/modify the panel, even adding separate conduit housed wiring to increase capacity if need be.

nice frame up (it even looks plumb! , except those two curvy 2X4's), can't wait to see the rest of your setup.

 

[BORNaSMOKER]

alright mate. I would use a 6" fan outlet, a 4"/5" inlet. A heater for the night is a good idea if it's cold where you are. I use ecotechnics conrollers for piece of mind but you can get other conrollers for less. If this is a long term thing, ecotechnics is the best money you will ever spend. Also has room for CO2 if you need.

The guy above reckons you want pos pressure in the room. If you do this the smell WILL leak!!!! that is a schoolboy error. You need neg pressure to insure the scrubber works properly!! Put the scrubber on the ceiling attaced to the big fan blowing out of the room high. Put the intake low, smaller than your outlet. Oscialtors are good for circulation but they do not raise pressure much this is governed by the speed of airflow in and out.

Hope this helps.

Oh and this is a quick guide to working out current!!!!!

2 x 1000 = 20 amps??? more like 8 if you use 240 volts and 16 if you use 120!!!!!! If you do use 120 volt supply then you need to stagger start by 15 mins so that lights dont come on together!!

Love the hollow wall!!

Peace and buds!

P=IV amps = watts/volts

 

[2Lazy]

I believe that you should intake from that adjoining room. If you intake your air from outdoors you can run into an issue with the outside temps being 100+ while trying to keep the room around 75 degrees with all those lamps and such. Intake from the house should be within reason all year long, all you need to do is filter the dust and fuzz and you're in good shape there.

Mounting the AC unit in one of those windows would be fine. If anything, it will really help you control the humidity in the room, but it will also allow you to fine tune the temperatures if you want to run a little cooler at the end of flowering and get some of those fall colors to come out.

Carbon filter -> Lights -> Exhaust fan ->Outside.

You could also try getting a little creative with the AC unit and try hooking it up straight to the cool tubes, then exhaust that air into the room to be cooled again. You could then run CO2 (and a humidifier) and you wouldn't exhaust anything. The AC would need to run 12 hours a day though, which is like another 1500w at least, but I think the yield with the CO2 would compensate the power charges.

 

[BORNaSMOKER]

can advise on a full setup if you tell me what your ambient temp is in summer. I dont use ac as i'm blessed with cool outside air but I know a lot of people need to as it's hot in the states!! I still reccomend the ecotechnics controller though as a one stop enviroment controller.

 

[reckon]

I have been growing since 1978. (stick THAT in your schoolboy)
never been busted, never even had a curious glance from a passerby,...I personally don't like cat hair, skin cells, lint, and airborne lipids ON my smoke, and if you put a carbon scrubber IN the room, you won't have to worry about any SLIGHT odor, from going with a SLIGHT (2-4mm/hg) increase in grow room air pressure. (it's not a fucking wind tunnel)

schoolboy error? dude, you say shit like that to peoples faces? around my neighborhood you'd get your teeth handed to you,.......

nice public relations work there buddy, you just made a new friend.

 

[beatster]

Thanks yall for all your replies really helps alot

Tbh I would rather put the hot smelly stank back in the house.. smell really not an issue too badly as long as it stays in the house..(I'm legal to grow in my state)
We don't mind a lil diy work so we figure we can make one down the road if need be.



With an ac unit in the window we figure it would be suitable/cool enough to pull air from the house and not always from outside cuz in the summer which is soon approaching it gets out enough to where we need a ac in the 1st place... Was just thinkin of pulling air in through the tubes(leave it open with a fan blowing/sucking) and out in the house.. but then it would have to go through the veg room we are building next to it.. =/ Don't know if this is a good idea or the best.. but since we are going to put this much work into it.. we want to make sure we do it right and in the most efficient way the 1st time.

As far as lint/dust etc.. they sell ducting caps wouldn't that help?

In the summer time here.. it gets into the mid-high 90's sometimes..

 

[BORNaSMOKER]

I have been growing since 1978. (stick THAT in your schoolboy)
never been busted, never even had a curious glance from a passerby,...I personally don't like cat hair, skin cells, lint, and airborne lipids ON my smoke, and if you put a carbon scrubber IN the room, you won't have to worry about any SLIGHT odor, from going with a SLIGHT (2-4mm/hg) increase in grow room air pressure. (it's not a fucking wind tunnel)

schoolboy error? dude, you say shit like that to peoples faces? around my neighborhood you'd get your teeth handed to you,.......

nice public relations work there buddy, you just made a new friend.

sorry reckon mate i didn't mean to offend but the 20 amp claim was a little high i = p/v?? . Also where I'm from, a little unwanted smell is not an option, you need to seal the room and filter the intake. I don't like dust on my stash either. It's never dust free though you always carry dust in the house when you tend your girls unless you have a lab standard clean room on the go.

As far as positive pressure is concerned, fair enough if it works for you go for it. I have always had BAD experiences with air leaks.

ANyway I didn't come here to argue with you I'm trying to help beaster set up his room, which is what this thread is for!!!!

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Beaster... sorry for making the thread negative mate, I didn't mean to rile anyone.

As far as venting in to your veg room, it's not a good idea as it will affect your veg temps.

If it gets that hot then your going to need a good extractor and cold air inlet, the air temp you pull in has to be low so you would need some cool AC air from the house (or wherever).

I agree with 2 lazy about the inlet, it would probably need to come from your house as it can get hot outside.

As reckon said, the hoods would be best served by air from the window passing through them and in to the house or back outside.

As far as fans are concerned, a 150mm inline outlet (or 6") and a 125mm (5") inlet. Additionaly you would ideally need a couple of oscilating fans to keep the air moving in the room. I use bionair circualtors that sit on top of my heaters to move the radiated air around evenly.

The Outlet high and central and ported through the wall. I would attach it staright to the wall and run the ducting through the wall and out. If you add a scrubber it'll need to go on the front of the fan.

The inlet is best low and cetral although this can be a pain if you have a veg room adjoining. I use a feeder tube that is like inflatable fabric to deliver inlet air evenly around the room.

If money is no object then I would buy something like this.

http://www.somhydro.co.uk/product.asp?pid=1200

There is probably a similar product in the US for a better price!! You basicaly plug everything in and away you go. All you have to do is make sure your cold fan has a cold air supply. Like you said, if you want efficent air movment, this is your best weapon. Before having one of these, every new room took weeks of dialling in and varying with change in ambient outside temp, now I just plug in and away I go, I like this particular one because it's good to my fans and isn't juas an on off device.

Sorry I sound like a salesman!! Hope this al helps, let me know hat you decide before you go ahead.

Born

 

[beatster]

Got more supplies!!

Got more supplies!!

Got some more supplies today. and we have started construction on the 2nd wall, also picked up some goodies at the hydro store too!!!

2 1000 watt hps Yield Master 6 in cooled hoods w/ ballast.
1 6 in can fan 270 cfm.
25 ft of ducting (plenty lol)
1 Y 6x6x6 adapter
1 Goldstar room air conditioner (not pictured)

Now what else besides some fans in the room would one person need..?

We are thinking we are set with this.. as the ducting wont be longer then 3 ft to exhaust..?