Moisture control for winter storage
So I am in a bit of a dilemma here about moisture control in my stored coach in well below freezing temps. Currently the coach is stored for winter under cover with the front drivers and passenger windows slightly crack open. I have no heat In the interior just the water bays with small heaters even though everything is "pinked" up. It is too cold to put the Camco moisture buckets because the water collected will just freeze. I can't run an electric humidifier because that would require draining it every day or two and a hose model draining into the grey tank would mean the grey tank would accumulate water and I would like to keep it totally empty in the minus 20 weather here. Does anyone have suggestions on moisture management ideas for the coach? My temp/humidity monitor inside say the humidity is anywhere between 50 per cent and 80 per cent depending on the outside temp