Staying warm

Hi folks. Thanks for the replies. I also have a 34 ft saltwater boat here moored in Whittier so Im familiar with the whole power consumption issue and fresh and grey water aspect of things but I know zippoe about the way these coaches are put together. I must assume, " and yes I know what assume really stands for", that price usually equals quality to some extent. I am going to try to go used, under 36ft and under 40 grand if possible. How about those Newmars, not so much?
terry in ak