My wife and a small dog we are also preparing to do this for this winter in Canada ( Québec ) in a 34' Thor Pinnacle 1994
We've been watching a lot of youtube video about how some guy's do it this as well,
ouce: we din't want to regretted our steps.
We are looking to buy a Cubic mini woodstove but they are not garanti and not recommend this product in Québec in a RV
Then we wish you all good luck for this winter.