proof of rocket mass heater efficiency

is there somewhere i can find proof that rocket mass heaters indeed cut one's carbon footprint? i'm trying to explain this counterintuitive idea to someone

if a thread already exists with this info, feel free to direct me there and delete this thread :)

Hi Michael,

Not sure if this is what your looking for, but at Batchrocket.eu (scroll down to the heading "Results") Peter van den Berg has used a Testo gas analyzer and posted some of his results to show what his batchrocket is capable of to most efficiently burn up the fuel that is being fed to it.

There are many more charts posted online on this forum but also at donkey32.proboards.com

Good luck with you conversation.