Delta9man

First off I want to say sorry if there is another thread like this but I searched and couldn't find anything close enough.

The problem: I have a closet 6x3x7 which is way above temp at an average of 90 degrees.

- I have a 600 watt and a 263 a min fan that blows the hot air from the hood outside.
- I don't have a intake because I only have one high powered fan which is the 263.
- I have even moved the fan outside the room, the ballast (sp) is outside the room.
- I moved the 2 small home fans around the room and it still didn't help.


So for some reason I can not get this closet and even the room to clear out the hot air. I have the outtake blowing out of the room and it still finds a way back in. It seemed like when i moved the outtake fan outside the room it got even hotter.

I have the window open to let cool air in the room and the hot air wont get out!

So if anyone knows a good idea it would be thankful.

Ripcord

One 600 wont cause that kind of problem, either your air isn't recirculating, or you have other problems. The exhaust has to go somewhere where it wont get sucked back in before being reconditioned. My room is 6x9x7 and I just added a second 600. One 6" Vortex thru a 40 pound carbonaire keeps the room at a steady 75 degrees. No matter what the ambient temp is. Whats weird is the second sun II only adds 3 or 4 degrees to the whole deal. But, my room is vented to elsewhere in the house. Ventilation is the key to a complete room.

Vent your room somewhere remote that doesnt interfere with your ambient temps. Its really that simple.

"Heres the secret"

If your fan blows your exhaust air into the same room as where your intake comes from, your wasting your time.

Dont apologize about one simple question. As long as people see your trying, and reading, you'll get a straight answer.

Good Growing

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Delta9man

hmm , well here are a few more things.

-Does it matter which side the fan is on? for example: I have ducting from the hood to outside the room into the fan and then the exit ducting going outside. So would it make it better if the fan was blowing air through the vent or pulling it out if that makes sense?

-Does the size of ducting matter? or the type? I'm using about a 6in size right now.

-I also have a cool mist humid in there which doesn't seem to be helping and i made sure the outtake was away from the room. I just cant seem to get the air flowing the right way.

Thanks for any help

dudex

Pulling air is the best way, and also if your using the collapsable ridged ducting those ridges add a lot of resistance.

alteredego

That sounds like your problem right there.
Are you say you have no intake at all? No way for fresh air to enter your grow space?
If you only have one fan, my suggestion would be to use passive intakes to bring the air into your closet. Your intake should be three times the size of your exhaust.
So if you have a 4" exhaust fan, you should have 12" of passive intake.

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Delta9man

ok so two things: My sister has a window A/C unit and if make a cutout for it and have it turn on every half hour for 5-10 minutes to keep the heat down would that be cost effective?

and what would be a good way to make an intake without a good fan?

thank you

JointVenture

Hello Delta9man .... I'm trying to visualize your setup ... tell me if I'm close.
Growroom: A 6'x3'x7'high closet within a bedroom. A 600w enclosed hood with glass and duct connections. A 263cfm fan connected with flexible 6" duct to the hood (suction side of the fan), then exhausting directly to the outdoors. Bedroom is closed with no way other than the open window for cool? outdoor air to enter. The closet is closed, other than a hole for the 6" duct to go through.

Is this about right?



jv

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Delta9man

Thats about right yup haha nice.

As for an update for in the room I now made a cutout for a window a/c to help keep the room steady sense I have tried every variation of things i can think of with what I have.

So now what I'm thinking of is how can I make this a/c unit come on every so often because when its powered off and turned back on from a timer it does not start because it must be powered from the button menu in front.

So the next problem after that is waiting to see how much I will have to pay for the next bill with this a/c going. And the room area is now pretty warm-hot so I stuck a good sized home fan in the doorway to spread it around the house.


-So I will post the new temps and how everything else is going later.

But I am still always accepting ideas and the help please.

thank you

P.S. i Forgot to ask where I can get the adapters(RT?) for the hood so the ducting can slip right over it(I have to duct tape a solid rim and then screw it in , works well for now) and the same for the blower.

DLA

OK so Alter...I always thought and read the opposite...4 to 1 exhaust to intake...unless your speaking specifically about passive.

If I am wrong could you point me to some info on this. Only reason I bring it up it is then I have my setup backwards, and anything other then that would be disastrous to the grow room. I also thought the idea was to have better atmosphere control and if their were 4 times the outside air being introduced to the room it would be incredibly difficult and expensive to keep temps and humidity under control. Whereas if you are exhausting more (negative preasure is what I thought we wanted)then is coming in then simple reductions can help keep the atmosphere better adjusted.

And of course there is always Co2.

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JointVenture

What are your outdoor temps? .... the air that's being drawn in through the window. Are you in a tropical environment? If you need A/C this time of year you must be (it's snowing here right now ) A 600W lamp will not heat up an entire bedroom unless you're in a tropical area.

If your intention is to keep the closet closed, then fresh air (yes DLA, three times the size of the active exhaust) needs to enter the closet at the floor level somehow. And it's area ... square inches or feet. A 6" exhaust is just over 28 square inches (π x r²) .... so you should have about 80 square inches of passive intake (no fan) into the closet. This could be done simply by under-cutting the door ... or three 4" round holes. Of course this compromises the "stealth" of the grow.

The exhaust is sent outdoors, or into the attic correct?

A small (12") oscillating fan in the closet will help to equalize the temps (no hot spots) for sure as well.

How we doing so far?



jv

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Do not anticipate trouble, or worry about what may never happen. Keep in the sunlight. ... Ben Franklin

Every reform movement has a lunatic fringe