Do I need to leave my basement window open?

[kruizin]

Hello All!

I live in an older house with a basement, main floor, and upstairs area. I created a passive intake, active exhaust out of the grow room and up the chimney.

Is there enough air inside the house (basement) already to keep this going smoothly, or should I leave one of my basement windows open a little for fresh air to enter?

 

[Tead]

I usally think of older homes (especially mine) as being far from airtight. Assuming yours is the same, I wouldn't worry.

Cheers!

 

[BWC BayArea]

If u do decide to leave a window open, do so in an adjacent room. In flower u'll have to worry about odor control.