Speaking of winter, I am getting a good amount of condensation on my windows. To the point where there is some water damage to some wood shelving under one window. This is a new construction so it's pretty airtight. This is our second winter and while I noticed some condensation last year, this year it is worse. It seems a waste to crack a window open to the cold air and have to run a heater more often. But when faced with running a dehumidifier, would cracking a window and running heat be more energy efficient and simpler? I think we might have this problem anyway without the tank, but the tank doesn't help. I go through about 10g/week on my ATO. I really don't want to cover my rimless. Any tips/advice or dehumidifier recommendations? Additionally, there are dehumidifiers that can empty into a floor drain. We have a floor drain in the laundry area for emergencies that pretty much drains into the crawl space. I've been wary of adding moisture to the crawl space, thinking it might damage some support etc. Is this a legitimate worry?