I started asking questions on other people's journals here and there about their thoughts and opinions, and I thought i'd drop my concerns here and maybe grab some info from you all.
So as I've said i'll be changing out my 600w HPS here in a month give or take a week for shipping to the Mars pro Cree256. It will be my first experience with LEDs other than the small UFOs I just added for extra lighting which have little to no heat. And I wanna grab some advice on tent setups.
Currently my setup is 2 tents exhausted out the only window in the room by 1 420CFM duct fan connected to the carbon filter and the 2 cooltubes. And I have a nice 16" stand up fan blowing the plant around. The 600w HPS along with the 400w MH really heat things up but my window unit AC keeps things in check pretty nice. That is until this time of year when its 0 C or low 30s F outside and stops my AC from working good, But not cold enough outside yet to cool the room down with just the window open. But i've been keeping it stable with extra fans. Once its too cold outside I usually can just exhaust right into the room and just open and close the window as needed. I also have free central heating so the cold isn't an issue at all.
I also have a smaller duct fan split up to pull air from the room and blowing it into the 2 tents. Not really sure its doing much so i'll just count that as an extra I can possibly use differently.
So now my issue is once I get the first LED and get rid of the 600w HPS i'll no longer have the option of using that exhaust setup because I can't seal the ducting to the LED. I'll still have to exhaust my 400w MH for a couple months so i'll probably just keep the carbon filter and fan in the bloom tent but run the duct straight to the veg tent. Maybe I can just use the small duct fan in this time to exhaust some heat from the top of the LED to the room, but once I switch out both tents to LED this is where i'll need the advice of a new setup.
To the ones using LEDs only, do you even need to exhaust outside?
How do you have your tents setup?