Exhausting into same room with open window?

[paparov]

Hello guys, i wanna do a 2400w vertical setup in a 8x8 grow tent. I have 2 8" exhaust fans for ventilation and 2 6" inline fans for active intake.

The room i have my temp in needs to stay locked for security reasons. It has a big window but for security reasons too, i cannot open the curtains. I can just open the window a bit but curtains need to cover the whole window so that my grow tent cannot be seen from outside.

Do you believe that if i had exhaust as close to the window as possible with the curtains covering it completely, the heat would not get out? I will be drawing air from floor level, inline fans that serve as active intake will be next to the window too.

So, in two words, i am asking if i vented in the same room with an open window but not outside the window, would there be a problem?I know 2400w put out a lot of heat. Outside temps will be ~60F.

Thank you very much for any suggestions.

 

[fir3dragon]

For my intake, I use the thing you put in the window for portable air conditioner exhaust. I put screen around it attached ducting, and there's my intake.

 

[thecoolman]

So, in two words, i am asking if i vented in the same room with an open window but not outside the window, would there be a problem?I know 2400w put out a lot of heat. Outside temps will be ~60F.

I think it will run hot

 

[jondamon]

Welcome to your new 2.4kw easy bake oven.


You need to exhaust the grow room away from the room with the grow inside it.

Can you go up into an attic?

Duct out to a different room?

Blow it out the window?


You can't expect a window to exhaust a room your dumping hot air into without actively removing it.





J

 

[fir3dragon]

So, in two words, i am asking if i vented in the same room with an open window but not outside the window, would there be a problem?I know 2400w put out a lot of heat. Outside temps will be ~60F.

I think it will run hot

i think it will run hot too unless you got something to suck the cold air in then possibly not. But with just a window open won't work cuz if would think that since exhausting in the same room, the inline fan and filter won't bring air in through the window because the air isn't leaving u know what I mean? Idk how to explain it lol. I'm certainly no expert though.

 

[jondamon]

i think it will run hot too unless you got something to suck the cold air in then possibly not. But with just a window open won't work cuz if would think that since exhausting in the same room, the inline fan and filter won't bring air in through the window because the air isn't leaving u know what I mean? Idk how to explain it lol. I'm certainly no expert though.

Its called recirculating old air.


Here's a link I use to design and build any areas.


http://urbangardenmagazine.com/2010/07/planning-your-grow


It explains everything!





J

 

[brotes grandes]

I've done it in winter with just a 600w and it got to 30c. Needless to say summer would be a oven if I kept doing it. I then vented straight out of window thru a old box the portable air con use to sit in until I was told the cops and flir would pick up a constant heat signature coming from my window so I switched and vented it into my roof and split the heat over 3 rooms so it doesn't look suss if I get any police over head,I could be too cautious but atleast its a good piece of mind. I now have the window cracked open a bit but covered with secure mesh so it looks legit even open in a storm . Secondly when I vented into same room it brought about humidity dramas and also the plants didn't like it and were always in a droopy lacklustre state.