LP use in my Fifthwheel is much greater than my prior TT was, there is simply a lot more space to heat, including the basement. In a weekend that's cold(and running on 3100W generator), I can burn through a 30# tank in two days since I cant run my heatpump or electric fireplace. My old TT a pair of 30# tanks would last me all summer season with a few colder fall weekends to boot and still have a lot left over.
I went out a bought those new nifty remote bluetooth LP tank level sensors, those work great so that I know how much gas I have.