New Room Setup No exhaust No cooling... Tips?

[riflecityjesus]

Hi all! I'm a newbie to this site, but not so new to horticulture.

I'm currently helping a friend set up his grow room, and have a few obstacles to overcome. Any ideas, tips, opinions or criticisms are welcome.

I've attached a generic blueprint of the set up we are going for.

The room is ~ 5ft x 8ft x 10ft (width x height x length) with one door entrance, no windows, one central air vent, and a water heater.

We are doing the "bubble bucket method" except we are using 15gal tote containers, with thick styrofoam sheets to hold the net pots, that way they float on the water, and a 380gph pump with air stones for oxygenating the nute solution. The lights will be hung from a stand--A central 400w HPS, a 260w HPS that we will swing to opposite sides everyday, and supplement with fluorescents or LEDs. We are going to do a screen of green with Northern Lights feminized seeds from NIRVANA. Planning on 18 plants.

Exhaust and cooling are the two obstacles we are trying to overcome.

Right now it's averaging 30 degrees F outside, so cooling shouldn't be a problem until summer maybe. But exhaust is an issue.

Any ideas?
All I can think of is opening the door during the dark hours. Will this be enough? Do we need exhaust if heat isn't an issue, since we will be supplementing with CO2?

We haven't decided on a CO2 source yet. Ideas include the MyCO2 mushroom output bags (anyone have experience with these), or getting dry ice (cooling and CO2?), or vinegar and baking soda mixture.

The equipment is being supplied by me, all old equipment I no longer use. And he/we are on a tight budget, so butane CO2 generators, and an expensive mini split AC are kind of not an option (unless it's cheap!). Plus putting holes in the wall isn't an option for him.

Also, we plan on using a cylindrical carbon filter on the ground with a fan mounted on top to pull air through the filter and back into the atmosphere. Will it work?

So recap on the questions:

-Exhaust ideas? Even necessary?
-Cooling ideas?
-Good CO2 source ideas?
-My carbon filter idea with fan on top? Will it work?

Like I said any ideas or criticisms are welcome. Especially if they save us some $$$.

Also, yield estimates? Never grew northern lights before. And this lighting setup is less than ideal.

Thanks guys!

Cheers

 

[daloudpack]

660w of light in a 5 x10 over 18 plants seems modest....1000w covers a 4x4

 

[riflecityjesus]

660w of light in a 5 x10 over 18 plants seems modest....1000w covers a 4x4

Yeah I know. It's what we got to work with at the moment. Think we'd have better results with less plants? Obviously, max yield is always the goal.

 

[daloudpack]

yep..... id cut it in half... i did 8 plants under 1000w hps and 240w of cfls in a 4x6 and got sum nice dense nuggs

 

[daloudpack]

im updating my room with a cool tube and xxl wing , and a 6 inch ipower fan in a few hours but here is my current set up... are u growing in a tent , or a room... i put a window Ac unit in the wall of my room it helps alot here is my current set up ill post new pics in my journal when i get done with the update

 

[daloudpack]

i also have to passive intakes in the bottom back wall that u cant see

 

[Kianinet]

I guess cylindrical carbon filter is good idea and it will cope with more powerful lights if you wish to add.

 

[riflecityjesus]

im updating my room with a cool tube and xxl wing , and a 6 inch ipower fan in a few hours but here is my current set up... are u growing in a tent , or a room... i put a window Ac unit in the wall of my room it helps alot here is my current set up ill post new pics in my journal when i get done with the update View attachment 3587065 View attachment 3587066

It's just a room, no tent. And he's not keen on putting holes in the wall for AC or ventilation, unfortunately. So we're making due. Not ideal, but trying to make the most with what we have.

 

[R1PJAW]

About your one door entrance. You could get a sheet of plywood from your local hardware store (Big enough for the door) and cut it vertical or how ever you like to make a smaller door. Cut exhaust and/or intake holes in one piece Use duct tape or similar to hold it in place and seal it to the door frame. The other piece of plywood can be used as a door that can be removed. I recommend using rubber self adhesive door/window seals, running it around the plywood boards and door frame for an air tight seal.

Now you can exhaust the heat and get cooler air inside without technically cutting holes in walls or anything. You can now run ducting down a hallway or room window etc.

 

[DemonTrich]

co2 wont help with just 1x600w light. not even close. you need 3x that amount of light. if you want to run co2, no intake or exhaust will be needed. you need a sealed room. those co2 bags and magical 2liter bottles are worthless also. get a burner or a tank for optimal co2 uptake and growth in your garden.

 

[riflecityjesus]

About your one door entrance. You could get a sheet of plywood from your local hardware store (Big enough for the door) and cut it vertical or how ever you like to make a smaller door. Cut exhaust and/or intake holes in one piece Use duct tape or similar to hold it in place and seal it to the door frame. The other piece of plywood can be used as a door that can be removed. I recommend using rubber self adhesive door/window seals, running it around the plywood boards and door frame for an air tight seal.

Now you can exhaust the heat and get cooler air inside without technically cutting holes in walls or anything. You can now run ducting down a hallway or room window etc.

That's actually a great idea! Thanks, man!

co2 wont help with just 1x600w light. not even close. you need 3x that amount of light. if you want to run co2, no intake or exhaust will be needed. you need a sealed room. those co2 bags and magical 2liter bottles are worthless also. get a burner or a tank for optimal co2 uptake and growth in your garden.

Not to be rude, mate, but I'm trying to figure out why you say CO2 won't have any effect because I have a 600w light (I have a 400w and a 260w) instead of an 1800w light. That just doesn't make scientifically sound sense. A sealed room with no exhaust will be depleted of CO2 in no time. I think a CO2 source is absolutely needed regardless of lighting conditions.

 

[DemonTrich]

Running co2 you need alot of light.

If your running a small 4x4 room with a couple plants, then 1x 600 will be ok. If your running a bigger room and more plants, you'll need more light. Running co2 requires alot more light than non co2 grows. The plants absorb light, nutes, co2 at a much faster rate. I'm watering/feeding 1 day sooner w/co2 vs my old grow method of running a intake/exhaust room. My stalks are 2x+ the size previously, buds stack on bigger and quicker it seems, and they must have temps from 85 to 95 tops to be benificial.