i'd go ask in the growing section of the forums. theyll answer ur questions a lot better.
jaGerbom Reviewed by jaGerbom on . HOW DO I GET FRESH AIR IN? the grow room is 48" x 48" x 70"high with a supa nova 600w(very warm)so there is a 4" ext fan .where's the best place to put it and will this be enough.also will a simple 10 x 10 louvre vent get enough air in . one idea i had was to just put some ducting near the eaves of the roof as there is air coming in BUT will it travel up the pipe about 3 mtrs ? sorry for so many questions but the books are sending me crazy.:rastasmoke: Rating: 5