you have central AC..?
you have an underground crawl space?
go under your house and detatch AC that goes to one of the rooms and bring it to your grow area...

also, try to utilize the cool air under your house using a fan..

: )
Garden Knowm Reviewed by Garden Knowm on . 100 Degrees Is 100 degrees F a deadly temperature or is it something that is ok? I know tomatoes thrive under average of 83, but my grow room as is gets from 86-100 depending on how I have stuff set. To make it stay around 86 I have to keep my window open at night, and leave my closet door open. I would do that but the bright HPS gets a tinsy bit annoying. Thanks for any info in advance. Rating: 5