I am looking for help in heating my room. I am in Seattle, and the temperatures get down into 30s at in the winter. My room setup has a nice fan that pulls the air through the veg and flower rooms to the outside. The fan is on 24hrs. I can put in a space heater, but I am afraid the fan will just draw out the heat. I could turn off the fan during the dark period, but then my veg room would not get any ventilation. Or maybe I can put the space heater at the intake vent, so the air heats up as it comes in? Anybody have experience with this?