There are a couple of differences between a tiny house and an RV:
Climate control: Small-scale homes can be heated and cooled to suit temperature throughout the year. RVs are limited in their climate control abilities and are best suited for moderate climates. Air quality: RVs have a lot of plastic components and petrochemicals in the air circulation system, which some people consider harmful to the lungs. Tiny homes are constructed similarly to traditional homes, with improved air quality. Off the grid: Tiny homes can use solar power, compost toilets, rainwater and wind to generate electricity and make the home livable. RVs still depend on petroleum and electric plug points. Personality: Like a traditional home, a tiny home can be decorated and designed to match your style. It can be completely customizable and constructed from scratch. RVs are usually designed and styled before purchase and cannot be customized. Part of a community: The tiny home movement is generally a social, environmentally-friendly community with like-minded individuals striving to live without debt and with more freedom. You can find similar mindsets in the RV community; however, RV owners are less focussed on environmental health.