Is anyone who is from a COLD climate familiar w/ Garn's solar option, as far is it functioning fine in spring and fall when temps tend to gyrate around? The dealer up here is just not familiar enough w/ them in real cold places to give me a firm answer on their viability in the Interior. (For that, I am glad. I appreciate being told "Dunno, I'll research" over "You'll be fine. Trust me...") I'm getting more and more convinced that I am going to get a Garn when I get my new place up. Thanks. j