We are heading to Durango, CO next week and will be parking our coach at a local RV park for a week while we stay with family during our visit. We will be plugged in to shore power to maintain heat. We do not plan on extending our slides nor connecting to water during our stay. We are unfamiliar with camping in cold weather for any length of time without winterizing. The forecast is daytime temps of mid-50's with overnights in the mid to low 20's. A long explanation leading to my question: Given the dynamics of the stay, should we winterize the coach while it is parked or would the heat generated from the coach keep things from freezing. It seems we should be fine but I certainly don't want to freeze anything! We drive a 2008 Holiday Rambler Ambassador 40PLQ. Thank you for any feedback!