MichiganMedGrower
Well-Known Member
Ok @spazo here are some pics of the way I learned to set up tents.
The intakes are 7" semi flexible duct. You want more than double the exhaust size for passive intake. This was my solution.
It has black ac replacement filter foam from Home Depot attached to both ends. The 2 layers and the bend made it pitch dark inside. If light may hit it direct just paint the inside flat black.
Black women's pantyhose works well too.
The last pic is the stealth window board I made. It has blinds mostly closed on the outside and is painted black so it looks like a normal dark room.
You may only need to duct the air out from above the open reflector of a 315. I only have fans blowing in between for mine and the room filter takes care of the rising heat.
But every situation is different so you have to research and figure it out a little. It's a learning process. I had no gardening or hvac background before I planted my first seed 3 years ago.
By the way. I hang the light high and use stands to adjust the plant height. And I always keep them about 30" tall or less. And I didn't always back then but I usually bend every plant so it branches up for many tops.
And I would shoot for 18" for your 315 and watch the plants response for a while.
Have a good grow.
The intakes are 7" semi flexible duct. You want more than double the exhaust size for passive intake. This was my solution.
It has black ac replacement filter foam from Home Depot attached to both ends. The 2 layers and the bend made it pitch dark inside. If light may hit it direct just paint the inside flat black.
Black women's pantyhose works well too.
The last pic is the stealth window board I made. It has blinds mostly closed on the outside and is painted black so it looks like a normal dark room.
You may only need to duct the air out from above the open reflector of a 315. I only have fans blowing in between for mine and the room filter takes care of the rising heat.
But every situation is different so you have to research and figure it out a little. It's a learning process. I had no gardening or hvac background before I planted my first seed 3 years ago.
By the way. I hang the light high and use stands to adjust the plant height. And I always keep them about 30" tall or less. And I didn't always back then but I usually bend every plant so it branches up for many tops.
And I would shoot for 18" for your 315 and watch the plants response for a while.
Have a good grow.
