Hi Bill;
The liberator is a fine stove, and it can push its heat through a mass.
I believe the manufacturer says it will push through 10' of mass and Uncle Mud (Chris McClellan) has successfully gotten more distance.
The
Rocket Mass Heaters (Batchboxes and J-Tubes) can double and even triple those distances but they are not UL-listed.
Depending on your location, a masonry heater using a Batchbox core may be insurable.