Thanks Chuck, for that information. When my house was empty (May - Sept), I strategically placed 3-4 of those canisters of little white pellet "moisture picker uppers" (can't remember the name of it for the life of me!) and it actually worked. House was as dry as a bone. So, I figure, if you do that, PLUS turn thermostat to 84 degrees, you've got it made in the shade. Good advice, thanks again for sharing it. {I love these tips, very enlightening}