Perhaps if you have central air you can unhook the vent in your growrrom and exhaust up thru the attic. Requires no new holes in house, though you will lose your air/heat (at least partially) in that room. Once you get to the attic, look for the nearest roof vent.
OR Freebird Reviewed by OR Freebird on . Impossible to exhaust to outside...... I don't own the property i live in and i can't cut into the walls to create a port to exhaust to outside? Any ideas?????? Rating: 5