How about constructing RMH's in strategic locations so that those that are truly interested in them can go to the location, examine the installation and perhaps even experience it's effectiveness of heating the structure while the weather outside is frightening.
Ideally set up some regional RMH construction sites so that those that are motivated can observe the construction and maybe even participate in helping to building one (Homes for Humanity came to my mind, may be a foothold for a RMH project). This could be a WIN-WIN project; RMH info-mercial and lowering the cost of heating for those that are going to get the homes.
The other area to consider and get with the sponsors are those that are building "tiny homes" for homeless veterans. Very efficient use of an RMH to provide warmth to every corner of the home.
Just a small "brain" burst.