Thanks for your feedback guys...a little dissapointing to say the least(I am hoping I miss communicated my set up!).

I have friends who grow in cab's, in shed's and dont seem to have any problems if using a small heater in the winter months (tube heater) and a heater for the feed/nutes. The cab will be meter square, (actually bigger than that, I have decided I could go up another 12") and will be within a 8 x 5 ft shed(room within a room, a bit like an attick grow...). The warm air will be vented into the shed the cab is in, hopefully keeping the ambient temps ok. I was planning on making silencers for my fan and light proofing the door to the shed. I will also use odour eliminating lights in the shed so as to eliminate any smells that leak from the box. The cab will be completely sealed and hopefully the negative pressure will keep the smells from leaking out of the in take...so hopefully it will indeed be odourless and light proof(apart from when Im in there poking about)

Im not saying you guys are wrong in any way, just hoping you miss understood my plan.

Thanks again
doubledutch Reviewed by doubledutch on . 1 metre square grow room - scrog grow - advice needed Hi I am building a 1 m2 grow room in an outside location (an out building). I plan on using a 1m nft system, 400w hps with cool hood, 150 fan with carbon kit. I will be growing scrog and think that a meter should be enough height for the set up if I have the screen at 10 inch. I will be lining the box with insulation, plastic sheeting and mylor. There will be a small fan to circulate air and an intake whole(no fan as Im not sure i need it?????). I will have a msall heater for the winter Rating: 5