Quote Originally Posted by ThaRaven7
Here's the deal....I'd like to exhaust the air, but frankly... I'm scared I'm gonna fuck something up and be left with a gaping hole in the floor or ceiling.

I understand the concept...pull fresh air in from the floor, pull air out through a carbon filter so your air is cleaned as it's exhausted. I'm a little worried about temps. I leave the door to the closet open about a foot, and temps stay around 80. I leave the door to the bedroom locked. Well it's getting cold here now... and I'm only running an 8 tube FLO fixture so it doesn't put off heat like MH or HPS's.

Would my temps get too low by flowing cold air from outside through my closet? What about at night when the lights are off? Surely they'd freeze, right?
An intake and exhaust should be used even if your growin' with an open door during "lights on"...Much healthier for the plants as it exchanges the air, makes it easier to keep closet cool,reduces the chance of bud-mold,etc...
As far as oder control I'd use both...The carbon filter to catch whatever you scrub outta your closet during "lights-off" and the odor neutralizer to help maintain a sense of normalcy,:angelsmiley: during "lights on"...Those big vanilla candles also help...
As far as making nice holes,hole-saw for sheet-rock and wood,core-bore for masonry and rebar...If your not handy,hire it done...Well worth it...
Cold outdoor air is great for cooling a closet grow as long as its buffered and not blown directly on the grow...
:420thought: