Not the room i grow in, no. As far as smell, all my friends smoke heavily, as do I, so my house always smells like ganja, even before the project.

I had a friend over yesterday and he couldnt tell....in fact, he even asked what the fruty smell was that i had goin on (glade plugins).

The room is off the living room (the office, and its closet), that is why i say it could be heard. I have the room pretty sealed up when people come over (hence the original question about heat) and that is few and far between, so as for being discovered, that is relatively moot.

I attached a diagram to kinda show what im talkin about.

Also, my apt. is brand new (built last year), and pretty well insulated, so cross smelling isn't so much of a problem.