I'm building a Batch Box Rocket Mass Heater for my Cabin. in this video I go over what I've done so far and explain how it works ... I've used the charts from Peter Vandenburg for my size info. Posted below ... and built mine with a 5" sized burn chamber and riser size and then I have a 6" chimney to help with drafting, keeping the chimney inside the bell should heat the metal and start the drafting right away. I will be putting together a full build video along with the burning when I get completed.
batchrocket.eu/en/
