Okay my name is Mug,I'm new here to the site but not to growing. I have several questions so i will try to keep it short. First off I will be growing in a root celler,it is 9'x6.5'x7' it has a wood floor above it with about a 6 inch gap between top of floor and cement on each side wall and it is all wood floor above head. My problem is there is no access to the outside to vent hot air my only option is to vent to each side under the flooring in a bedroom and the living room on the other side. Would this work to cool a bulb in a cool tube setup? Also for back ground the room is about 70 degrees if there is no light on in there during the summer and about 59 in the winter as we are at quite high elevation here. My second question is should I go 600 watt or 1000 watt in this area I plan to only utilize about 4x4 area so I have room to walk around. My major concern is heat building up down there,I will be growing once winter starts,about Oct. I have three strains I could grow, all Nirvana seeds fem. Blue Mist,Super Skunk,Northern Lights. What would yield the best and be most user friendly for this cellar grow? I have 10 of the blue mist but only 5 seeds of the other two each. Thanks in advance,and apoligies for the long winded first post.