hps heat

  1. Q

    Grow room ventilation

    Hi guys I have a 3 by 3 by 6 grow closet with a 168 cfm inline fan connected to a carbon filter rated for 200 cfms with a 4 inch hole cut for intake. I am running a viparspectra 600 led and this set up is working great for now. But for the winter instead of heating my grow closet (since the...