Hi Rodger;
I haven't heard of anyone making flue liners for RMH's.
But I don't see why you couldn't.
They would not work in the riser, but would be just fine as piping thru a mass.
If you have the time and materials it sounds like a fun project.
For all your Montana Masonry Heater parts (also known as) Rocket Mass heater parts.
Visit me at
dragontechrmh.com Once you go brick you will never go back!
It would depend on the use for the flue liner, and the character of the local clay. If you are looking for RMH channels in a mass, yes, it would be perfectly feasible. If you are looking for a chimney for a wood stove, that requires particular thermal and chemical properties which most native clays would probably not possess without correct additions and modification.
1
