As far as yield to expect...I am not sure....Never done this inside...I am testing this all out. I dont smoke all that much but LOVE to grow it...I have my medical card in Maine and am going to be a caregiver....concentrating on vets with PTSD.....so I am just getting started...outside I have no problem...but inside I have realized I need to be mother nature....wind,rain,temp,humidity etc....this is all new to me...I think I will go with a 1000 watt system without the cooling hood....I am growing in my upstairs in Maine and we have COLD winters and the stairway has a door on it to keep the heat downstairs in my house...I can regulate the temp of the room with heat ducts on the floor...I plan on having a carbon filter sucking out the heat and smell to the outside and a 6inch duct fan on the floor sucking in cool air.....sound ok???