The Alde is the best heater/furnace/boiler that nüCamp could have used in their T@B’s and their Cirrus Truck Campers. Follow the advice @SAM has given you and you will be a very happy camper. I have wintered for two years in AZ with my T@B and will be embarking on my 3rd Trip soon. All three for the most part in dispersed camping without electricity.
By the way, the propane tank only runs out between 10 pm and 4 am, so be sure to have a backup tank.....yes, I’m serious. It’s Murphy’s law of the propane tank.