Liberator rocket heater tied into horizontal mass on floor of greenhouse

We're attaching a greenhouse to the south side of our barn this coming spring. Whether it's a pit type or on the surface will depend on our ability to make it possible to get a concrete truck to the location. We've been discussing heating options for some time. My wife saw an ad for the Liberator Rocket Heater and liked it since it's certified. Has anyone had any experience using one of these in a greenhouse? To those of you with more experience does it seem like a unit that could be tied into a horizontal mass along the middle of the building? Our total dimensions will be 17' x 55'.

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.

Thanks Thomas, my fantasy is that I can put the stove at one end of the greenhouse, run mass along the 50 some feet and have the exhaust come out the other end. Is that something that's possible or just a figment of my overly active imagination?

An 8" J-Tube or a 6" Batchbox would go 50'
A liberator from what I have heard, will not reliably travel that far.
There is no comparison between a homeowner-built RMH and any other stove available.