mdel747...Welcome to iRV2!
We are certainly glad you found us. You will find lots of information here...and one of the nice things about this forum is they have different manufacturer groups - so you will be able to read about different brands all at one time!
Your first question
... DP for winter use? I actually lived in ours for a year up in Oregon. We had snow at times and I did fine. You more than likely will use more propane -but it is more than doable.
You can also use small portable heaters if you are hooked up to 50 amp service or if you are running the generator.
....Again welcome to iRV2.
We hope you visit & post often...and oh- don't worry about the many questions.
We are here to answer them ...so ask away!
PS...we are looking forward to more photos!