No,
@Drdawg. We usually don't get cold enough to require more than a little extra heat inside the GH for frost protection here in the deep South. I was able to keep the GH at 65º this winter. It cost a pretty penny but the plants thrived in it, like winter never happened. I think with better inside insulation, and dropping it down to a liveable 55º, I will save some money next year.
I am thinking growing vines in a long trough with trellis it would be pretty and add that bit to the North side insulation. Adding the greenery would also hide it from our HOA.
