Man, I don't feel so left out. 20*'s in Florida? I keep mine in a heated 3 car garage, with an overhead Reznor set at about 45*.
To Bobby V.....I got a chance to buy 2 - 40 foot infrared heating units for $400. I think I just might pick them up. They are nice....they heat only objects, like the machines, the van, the concrete floor, and radiate heat to the air from the heated objects.