Rex
Yes - my refrigerator is a Norcold and as stated above (see other comments from me) the manual clearly describes it as being capable of operating in temps between 0-32 degrees F. The manual indicates (however) that the line coming into the solenoid 'may not' be protected i.e. exposed to outside weather or not insulated. However, my incoming line is enclosed within the trailer and 'is wrapped' in insulation. I'm assuming this is an improvement related to the BC or the 2012 models. In any event - I'm impressed with Heartland.
BTW, my last name is Hasty too....without the 'E' though.
Thanks for your comment - it is appreciated.
D. Hasty