RMH for a camper/van?

Has anyone tried this?

Not as yet, but I've done some work recently which could lead to such a heater. Problem here is the mass, due to the nature of the camper it isn't possible to have a lot of this. But it could be done bridging a couple of hours probably, depending on the temperature in the caravan.

Also looking for a very small pellets stove for heating water to the floor tubes in my small camper van... 😉