I really like that transimmter deal...where did you get it, HD?
I'll more that likely place my 1 tree in the garage, my garage feta real cold but for what I hear these trees can handle some cold temps, I'll just place some mulch down over the truck and pot.
I ended up getting it off of Amazon I believe. I wanted one that went down as low as possible, and finally found one that went down to 14 degree F (I believe it went down that low). It's a La Crosse in case you're interested in the brand name.