I saw a post where stinky says she uses a window banger to cool her grow...i just realized my grow room is next door to my garage...i figure ill get a cheepo window a/c and have it hang into my garage from the grow room...just not sure what btu rating to get ....the grow room itself is 10x10...and i have approx 12x10 room that is connected by a framed wall ...i plan to seal this room off from my grow...i figure as a supplemental unit the 8,000 btu should do the trick....