Winterizing / Hydro-Hot March 21, 2020, 03:06:32 pm Hi all:For the first time ever, I winterized our 2007 530 Intrigue. Due to the global pandemic we left FL 2 months early and headed to Northern MN where it is still winter and will be for another 8 weeks.I winterized the coach by blowing out all of the Hot and Cold lines, Lav, Fridge/Ice Maker, Shower, Wet Wall, Wet Wall Sprayer and the flush lines for the Black and Gray tanks, and then pumped in RV Antifreeze into the system until we had antifreeze coming out of every tap. I put anti-freeze in each P-Trap. In total, about 8-9 gallons of RV Antifreeze.Fresh Water Tank was well drained, but I did not add antifreeze directly to the tank.Black and Gray Tanks are aggressively drained, but I did not add anti-freeze to those tanks either, other than what was passed through in the process of filling the lines and lav lines.I currently am still running the hydro-hot gas - set at 45 inside.Two questions: 1.) I'm thinking of shutting the thermostat in the "house" off but leaving the hydro-hot on, to continue to heat the bay. I'm also connected to 30amp, so could I just leave the electric element on? Would this be enough to keep the bay warm?2.) will having RV Antifreeze in the lines going through the Hydro Hot heat exchanger instead of water be a problem with the Hydro-hot running either via element or Diesel?Average overnight temps here are still in the 0-10 deg. F. range and will be for maybe another 3-4 weeks.