Here its the one he patented with the stirling motor wich provides 200 watts of electricity.Enough to run a TV and the lights of a small home.
Subject: Rocket heating central
This is a rocket stove based heating central with a copper coil heat exchanger in the riser tube and a waterpump thats driven by a Stirling motor so its autonomous and not connected to the electric power socket ( in this video it doesnt have the Stirling mounted iet).
Language is in romanian and the inventor has even patented it and sold the patent to a company that makes these stoves.
He used 800 kilograms of wood to heat his apartment in a winter in Usda zone 6.
Doesnt make smoke so that the neighbours dont know if its a gas central or a wood central.
I found this to be interesting and if you have questions about the sistem i can translate from romanian.