I need to know from experience the best temp range for closet grow and the best way to get rid of heat and recieve fresh air.

Here is my thought's and setup

1 honeyweel udc 3300 temp controller
1 slc 500 programable controller
3 6 inch muffin fans at 294 cfm

grow closet 3'x4'x7' with drop ceiling

The grow closet is in my office attached to the house

I have installed one fan and dryer exhaust duct to the drop ceiling and have it exhausted to the out side.

Another fan is attached to an outside wall to draw outside fresh air and another fan is attached to an inside wall to draw air conditioned air from the house.

What I need to know is what is the best temp range for a grow closet and would it be better to push out hot air with fresh air or better to pull out hot air while at the same time pulling in fresh air.

Thank You
I welcome all comments good and bad

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Sounds like you have the nuts on it. You may want to add a small oscillatating fan just to move the air around the plants and from under the lights. One in one out is more efficient at exchanging the air. 74 to 78 degrees with around 50% relative humidity is ideal. That area will allow you to have around 12 plants if you can do your vegging and cloning in a different spot. VV

Thank you I'll set my mean to 76

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Just say KNOW CALM http://www.pot-tv.net/

http://www.norml.org/index.cfm?Group_ID=4516 <-- Your State Laws REgister and VOTE