I will be installing a tankless system into my current build.
I'll let you know how it works out.
So far here is what I know: The system we will be using is inexpensive. Like under $100.
It's a portable unit that will be converted to a fixed mount. 1.6 gpm , So it is rather limited in that respect.
Will be externally mounted to prevent oxygen depletion in the cabin.
As we are still in the fit out and plumbing phase of the build , that's all of the info I have at this point.....
The camper that this unit will be used in is an expedition type of unit. Not your normal state park type of camper. Weight, size and reliability are all major influences for us .
Hope this helps.