
Originally Posted by
Kitkor
Thanks, Veronis! Without the electric space heater, the temperatures would go well below freezer. The bubble wrap just inhibits the heat loss moreso than just the plain polycarbonate panel walls. The space heater was set to about 40 degrees F. I didn't want the pots to freeze solid and I knew that high winds could whisk away heat even faster.
They stayed out in the greenhouse all winter. Outside temps were near zero some nights and a min/max thermometer never showed a temp below 39 inside. The little space heater that could!