Ventilation Setup

I have a 112"x22½"x93" closet space. About 3 feet to the left of the closet I have a sliding glass door that leads outside. I suppose I would use this for my exhaust. I'm wondering a few things.

Such as:

• What size/CFM fan would I need?
• How much ducting would I need?
• How would I exhaust out of the sliding glass door? I mean I don't want to keep it open 24/7. Or is there another way I could exhaust.
• Any specific recommendations/advice?

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Here's my closet grow space. I use a Thru Wall fan w/ the grill removed for better air flow.





Here's the fan:

http://www.homedepot.com/buy/thruwall-7-5-8-in-transfer-fan-tw108.html

Add a grill to the bottom of the closet door to get air into the closet. You may crack the slider for some fresh air into the room.

Hope this helps.

you need way more lights for that plant to keep growing, did you grow that whole things just under those 2 bulbs?

Dookz said:

you need way more lights for that plant to keep growing, did you grow that whole things just under those 2 bulbs?

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Mostly grown outdoors, currently isolated and being treated for mite, hence the two Hot Shot Pest Strips in the 200 cubic foot space. At ten times the recommended concentration for the Hot Shots, the freakin' bugs didn't last too long.

dray86man, I like your vent setup. But I'd rather lead the exhaust out of my room entirely. I do have to sleep in there ya' know.

I was thinking maybe I could leave my sliding glass door (pictured on left) cracked enough for some 6" ducting to fit through. I'd then close off the opening with some plastic sheeting. I could install a zipper on the sheeting and open it just enough for the exhaust, then it will be sort of closed even with the exhaust leading outside.

So to achieve this what would I need to do exactly? I don't entirely understand how a fan can suck air, etc. Could someone maybe draw a diagram based off the picture I've provided? I can take more pictures, and I'd appreciate all help. Thanks!

nice lookin plant more light and a little mag/cal but still looks great

maybe a coupla 6 inch rotateing fans would help to

GrowinTheDank said:

dray86man, I like your vent setup. But I'd rather lead the exhaust out of my room entirely. I do have to sleep in there ya' know.

I was thinking maybe I could leave my sliding glass door (pictured on left) cracked enough for some 6" ducting to fit through. I'd then close off the opening with some plastic sheeting. I could install a zipper on the sheeting and open it just enough for the exhaust, then it will be sort of closed even with the exhaust leading outside.

So to achieve this what would I need to do exactly? I don't entirely understand how a fan can suck air, etc. Could someone maybe draw a diagram based off the picture I've provided? I can take more pictures, and I'd appreciate all help. Thanks!

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Two things....
1. If you cut a piece of plywood 10"-12" wide and the height of your sliding glass door you can put it in the sliding grove. At that point you can cut a hole for the exhaust and keep the room secured from the elements...I do it all the time for radio coax.
2. If you get an inline fan...like an old girlfriend it sucks and blows. Turn it so the air goes out the ducting and it will exhaust.
Does that do ya? Hell, I touht you'd like the dreams you'd have exhausting into your bedroom.

Brother Numsi said:

Two things....
1. If you cut a piece of plywood 10"-12" wide and the height of your sliding glass door you can put it in the sliding grove. At that point you can cut a hole for the exhaust and keep the room secured from the elements...I do it all the time for radio coax.
2. If you get an inline fan...like an old girlfriend it sucks and blows. Turn it so the air goes out the ducting and it will exhaust.
Does that do ya? Hell, I touht you'd like the dreams you'd have exhausting into your bedroom.

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Oo what a great idea! So just to be 100% clear. I need to have an inline fan on the bottom of my grow room floor, and lead the exhaust ducting out the top of the sliding glass door? I'm probably going to do the plywood thing. That sounds awesome.

A couple things...how are you venting out ofythe closet oe how do you get the duct work out of the closet? Also the less bends in the ducting the better so that should dictate where the hole is cut in the plywood is cut. Measure the sliding area to get the accurate thickness of plywood.. The inline fan has 1 purpose...to exhaust the closet. I'm thinking that it will draw fresh air in thru the opening under the door...which will need to be blocked during dark hours. Also you'll need to be in the closet to see if any light comes thru the ducting. You'll sill need a fan or two for movement.

Keep in mind this method will compromise the security of your house. Maybe paint the exposed side the same color as your house and prime it with KILZ to keep mold away.....

Brother Numsi said:

A couple things...how are you venting out ofythe closet oe how do you get the duct work out of the closet? Also the less bends in the ducting the better so that should dictate where the hole is cut in the plywood is cut. Measure the sliding area to get the accurate thickness of plywood.. The inline fan has 1 purpose...to exhaust the closet. I'm thinking that it will draw fresh air in thru the opening under the door...which will need to be blocked during dark hours. Also you'll need to be in the closet to see if any light comes thru the ducting. You'll sill need a fan or two for movement.

Keep in mind this method will compromise the security of your house. Maybe paint the exposed side the same color as your house and prime it with KILZ to keep mold away.....

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That's what I've been trying to think about..I'm not sure how I want to get the duct work out of my closet. I know I need to keep the bends minimal with ducting. Any thoughts?

The opening under the closet will be blocked by a plastic sheeting door. I'll probably mount some fans for air circ. because I'm running out of floor space. Good idea with the paint. I definitely want to keep security as high as possible.

Edit:
Hmm. Actually, would I be able to do something like this (refer to picture below)? I could cut a vent into the ceiling of my closet.

What is above the ceiling in your closet? Can you just vent it up there?Also, you can put a pipe in the slider grove, but someone can always kick in the plywood. Worst case cut a duct hole on the closet door...that'll be greatly appreciated LOL.
I can't remember...are you going to veg and grow with your T-5? I wouldn't think heat would be much of an issue...just the odor.

Brother Numsi said:

What is above the ceiling in your closet? Can you just vent it up there?Also, you can put a pipe in the slider grove, but someone can always kick in the plywood. Worst case cut a duct hole on the closet door...that'll be greatly appreciated LOL.
I can't remember...are you going to veg and grow with your T-5? I wouldn't think heat would be much of an issue...just the odor.

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I suppose the only thing above the ceiling would be the roof. I'm not sure if I can vent it up there, can I? lol. These damn french doors are about to make me just rip them off in a minute. I honestly can't stand them lol..but that one's not my call.

Yes, I'm going to veg and flower with my T-5. But remember, these are long-term plans. I'm not going to re-design my duct system once I get new lights. I want it to be sufficient for whatever equipment upgrades I make in the future.

Right...invest in the future. I doubt if the roof is directly above the closet, but I could be wrong. Is there acess anywhere in the house to see what's up there or how much room there is? Since you have A/C there should be ductwork somewhere overhead, no?

Brother Numsi said:

Right...invest in the future. I doubt if the roof is directly above the closet, but I could be wrong. Is there acess anywhere in the house to see what's up there or how much room there is? Since you have A/C there should be ductwork somewhere overhead, no?

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Well I don't know about access to anything up there. But as you can see in the picture, there is some space between the ceiling and roof. I guess that means I can cut a vent into the closet ceiling? Correct me if I'm wrong.

Hmmm never dealt with a tin roof. Again follow my logic (LOL) If the A/C unit (exchanger) in on a wall in the garage there will be ductwork coming out of it and that ductwork has to go somewhere throughout the house. Is the A/C ducted in from your ceiling? (Where's the vent?) There has to be room in there somewhere LOL. I wish I knew...too far from me to see from here

Brother Numsi said:

Hmmm never dealt with a tin roof. Again follow my logic (LOL) If the A/C unit (exchanger) in on a wall in the garage there will be ductwork coming out of it and that ductwork has to go somewhere throughout the house. Is the A/C ducted in from your ceiling? (Where's the vent?) There has to be room in there somewhere LOL. I wish I knew...too far from me to see from here

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Well based off these 2 pictures I've just taken I would conclude that I can indeed cut a vent in my closet ceiling. Am I right? Both pictures taken upstairs btw.

Guess I don't need a new thread for these questions do I? haha

..Anyways

I've decided I'll only be using 60"x22½"x93" of the closet. Left side for growing, right for storage. I've also purchased this: http://www.amazon.com/gp/product/B0052ZPMAG/ref=oh_details_o02_s00_i00

I was told if I can seal the closet (thoughts on the best way to do this?) I won't need both exhaust and intake fans for my ventilation setup. I was originally planning on cutting a vent hole into the ceiling (on the storage side) to exhaust air into my attic, then purchasing another fan of an equal CFM rating for intake.

I know it won't be totally sealed..But can I really just re-circulate air through a carbon filter in my sealed closet space without worrying about smell or heat? (refer to picture) Note intake fan will be pulling air from either the storage side, or my room itself.



If this doesn't depict a clear enough visual then please ask for clarification.

Thanks in advance. This community has helped me sooooo much

GrowinTheDank said:

dray86man, I like your vent setup. But I'd rather lead the exhaust out of my room entirely. I do have to sleep in there ya' know.

I was thinking maybe I could leave my sliding glass door (pictured on left) cracked enough for some 6" ducting to fit through. I'd then close off the opening with some plastic sheeting. I could install a zipper on the sheeting and open it just enough for the exhaust, then it will be sort of closed even with the exhaust leading outside.

So to achieve this what would I need to do exactly? I don't entirely understand how a fan can suck air, etc. Could someone maybe draw a diagram based off the picture I've provided? I can take more pictures, and I'd appreciate all help. Thanks!

View attachment 2350343

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Hiya M8,

Instead of risking leaving a duct hanging out a door which is viewable from outside the home. What are the chances you could just vent it through to the attic from the top of the closet, pull the air from the bedroom, then exhaust it up through the ceiling. unless you are renting, then bad idea...lol

When a fan runs, it has to pull air before it can blow air. Albeit this happens almost at the same time, there is still a natural way a fan works. If a fan can't pull air, it wont blow nowhere near what it is supposed to and will start to overheat. If you put a fan in the ceiling of the closet, say 200+cfm and shut the closet door, if it will hold a piece of paper on the bottom grill, then you are accomplishing work, if it doesn't, you may need to seal the bottom of the door a bit better, but by the way things look a 200-250cfm fan will exchange the air in that closet fairly quickly and efficiently

Hope this helps M8

By the way, very nice plant

Peace

Asmallvoice