Liberator Rocket Heaters / thermal mass

I bartered for an unused  Liberator Rocket Heater over a year ago for my off grid cabin.  I would like to know if anyone has come up with a successful method of incorporating thermal mass in the install of this product?  Thank you!

Hi Cameron;
I believe the liberator allows 10' of horizontal pipe. Check the company specifications.
That pipe should be surrounded by a mass.
Clay bricks and cob would be my choice.

Here are some suggestions:



source

Sky said, "Chris "Uncle Mud" also did a lot of work in figuring out various ways Liberator Rocket Heaters can be integrated into thermal mass and has an excellent video series on the subject

https://permies.com/t/162648/EPA-Approved-Rocket-Mass-Heater#1467510

I have a question about this type of stove I have built one like it and don't have room for a mass- with this exception- on top. So what can I or what should I use to capture heat. I could put a lot of brick up there- that would seem like it could hold heat or could I put a metal bucket of sand up there to continue to radiate heat when fire dies down???

Howard, if you look at Uncle Mud's YouTube page he covers this topic much better than I can.  Seems as though there are a lot of ways to add mass to retain and slowly release heat.

Best,
Scott

Hello Scott- I looked through all the Uncle Mudd videos I could find. I have for years seen the cobb benches for mass heaters and also for the Liberator  which I have something like. I didn't really see any videos doing something like I want to do which is without a bench or wall somehow get more heat retention from my heater. At present as long as you are burning it you have heat but when fire goes out or down the cool down in house is almost instant, at least very quickly. In looking at my situation I can put something on the round top of the stove. I was thinking maybe a stack of regular old bricks. I am not a scientist but remembered years ago people would put warmed up bricks at the foot of their bed so maybe this would hold the heat or maybe I should try to build a cobb barrel on top of the heater. I have a good 4 feet below ceiling to catch or retain the heat. If you see a particular video I have missed with something directly on top of the stove if could could maybe post a link as I have never seen anyone do what I am asking about.

Howard Hoffman wrote:Hello Scott- I looked through all the Uncle Mudd videos I could find. I have for years seen the cobb benches for mass heaters and also for the Liberator  which I have something like. I didn't really see any videos doing something like I want to do which is without a bench or wall somehow get more heat retention from my heater. At present as long as you are burning it you have heat but when fire goes out or down the cool down in house is almost instant, at least very quickly. In looking at my situation I can put something on the round top of the stove. I was thinking maybe a stack of regular old bricks. I am not a scientist but remembered years ago people would put warmed up bricks at the foot of their bed so maybe this would hold the heat or maybe I should try to build a cobb barrel on top of the heater. I have a good 4 feet below ceiling to catch or retain the heat. If you see a particular video I have missed with something directly on top of the stove if could could maybe post a link as I have never seen anyone do what I am asking about.

Hi Howard, you could pull the stove a bit away from the wall and build a pretty massive heat bank by both pouring a concrete slab for it to sit on and putting brick in back of it (multiple rows).  You would get the heat from the pipe going through it but given the proximity to the back of the stove would really soak up the heat, the canister portion gets incredibly hot as it burns the wood gas.