Great question And believe me I am still very much streamlining lots of things , and humidity control/ventilation is a big one. I am running air exchange for most of the day, with an exhaust fan and a custom motorized louver i had made by Duravent in Canada. Great company by the way. This is extremely effective at keeping humidity in check, but at night I found out was not efficient at all to do this, because my heat ran hard all night. So, I run my Dehumidifier now at night. Both are on opposite timers, and I let the exhaust fan run for about 15 minutes every 3 hours to help bring in fresh air. However, I am planning on ducting my dehumidifier and incorporating a fresh air intake, so when it runs at night it'll suck in a little fresh air and warm that air up even as it flows through the unit. Hopefully solving two problems in one fell swoop. Heres a pic of the Duravent Louver. pardon the crooked cover plate I had a wire to contend with in that exact spot lol. And I am going to hold off on trimming it out for a bit yet as well. The exhaust fan intakes are on the very far side of the room in the ceiling.