Ive been thinking i should go LST also but ScroG looks very promising if done right.

I was thinking it might be possible to grow in my attic, its way too hot up there but i was thinking i could take a line coming off the air condition line or maybe even an exhaust fan from a bathroom to run cool air into the growbox and have the box vent straight into the attic. Anyone ever tried this or something like it? Is it even possible? My only concern is possibly spreading the odor of the plants throughout the house through the air vents....