Exhaust big tent!

M

moddchan

Active Member
Hello!
I will be gifted a 2x3m growtent tommorow. I currently run a 1x1m and a 1.2x1.2 in same room, and another 1.2x1.2 in another room.
My plan is to replace them all with this 1 big tent. So I have a few questions.

I guess my exhaustfan wont be enough to vent it, can i use 2 or 3 exhaustfans in same tent?

And right now I have 4 CMH 315W lights. I was planning on snatching a new led on Black friday. Maybe Marshydros 300w.
So it would be a Marshydro 300w x2+ 4 315w lights, would that be good for this footprint? Thanks.
 
coreywebster

coreywebster

Well-Known Member
A 315 covers about 3x3 and even then its a bit weak.
A 1m2 is bigger than 3x3.

I'd be looking at an LED fixture around the 360w range per square meter.

And yes you can use multiple extractors but they all have to go somewhere .
 
M

moddchan

Active Member
coreywebster said:
A 315 covers about 3x3 and even then its a bit weak.
A 1m2 is bigger than 3x3.
So your 3x 315s are still under lit for half that 2x3.

Add in a 300w mars, I'd want more per meter squared so even with 3x 300w mars your still not really lighting it up fully.

I'd be looking at an LED fixture around the 360w range per square meter. Assuming your wanting to light the whole area of the tent.

Of course it might be wise not to and to have a nice square meter in the centre of one side of the tent. In which case 2x 360w LEDs would work.

And yes you can use multiple extractors but they all have to go somewhere .
Click to expand...
Thanks. I think the 315w do fine in my 1x1m but I dont mind having a bit of sidespace as you said also for moving around.

As for the ventilation, if theres 2 hole in the roof of the tent I can just use the 2 separate exhaust fans with carbon filters 1 for each whole?
 
coreywebster

coreywebster

Well-Known Member
moddchan said:
As for the ventilation, if theres 2 hole in the roof of the tent I can just use the 2 separate exhaust fans with carbon filters 1 for each whole?
Click to expand...
Yeah of course , but where does the air go?
At some point it needs to go out the room , like out the window, up a chimney ect
 
M

moddchan

Active Member
coreywebster said:
Yeah of course , but where does the air go?
At some point it needs to go out the room , like out the window, up a chimney ect
Click to expand...
Ah you meant like that! Im stoned sorry.

Well so far I have had okay results keeping temperature down since theres a door to my small backyard there.

I keep it only slightly open since I dont want anyone from the street to see it, but since I live in a cold country,
temps are easy to get down and fresh air come in there.

For the summer I think i would have to invest in a portable AC Unit.
 
Powertech

Powertech

Well-Known Member
One of my tents is a 9ft x 5ft. I use two 6" exhaust and one 6" intake. It actually waaaaaay more than I need, but the plants always seem happy.
I have around 2k actual watts of LED though
 
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