Fred,
Winterizing your coach will not effect your Hurricane system. The winterizing process only effects the fresh water system and drain traps. However, you should not turn on your electric water heater because it was probably drained when the coach was winterized and it must be filled before turning it on. Also, there is no electric heating element in the Hurricane system. If you need any additional information about you Hurricane heating system, just call me at 713-254-4156, and I will answer all of your questions. I am in the Pacific Time Zone now.
Gerald