Batch box rocket mass heater - PEM BB woodheat.straw.batchrmh

This is a badge bit (BB) that is part of the PEM curriculum.  Completing this BB is part of getting the Straw badge in Wood Heat.

Rocket technology allows us to heat things very fast with wood.  Batch boxes hold a lot of wood and act more like a traditional wood stove.  Let's build one!

 
 

Here's one getting built really fast:


Minimum requirements:
  - Build a batch box rocket mass heater
  - Metal assemblies/components can be purchased (hint: Dragon Tech)
  - Mass can be a bench or bell
  - At least a 6" system
  - Includes a door on the batch box
  - Includes a secondary air feed

Provide proof of the following as pictures or video (<2 min):
  - The bricks you're starting with
  - Several points during construction
  - Finished batch box rocket mass heater
  - Fire going in the batch box