It has been cold up here in the Pacific Northwest this year and its time to get a better ventilation system. I have been working with a large whole house fan set up in a window. It does a wonderful job of ventilating the air in the studio but unfortunately when you are pushing a large quantity of air out, it needs to suck a large quantity of air in. Up until now, that has been provided by the outside air. This is very nice in the summer but brutal in the winter.
I have started assembling a new ventilation system with a proper squirel cage blower and a new supply of fresh air. I will post more pictures when the job is done and working properly.