Hi Justin.
I added a Refleks heater this year; I love the simplicity of no electrical draw and not much to go wrong with them. I haven't had occasion to try it out yet so didn't report on it (my main fuel tank started leaking last June so I decided not even to plumb fuel to the Refleks till I get the tank straightened out). Dickenson and Sigmar also get good reviews, the Refleks happened to fit my space better.
We are also considering Norway and the Baltic for a future destination; will look forward to following your progress.
Max