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This is a badge bit (BB) that is part of the PEP curriculum. Completing this BB is part of getting the wood badge in Rocket.

This BB requires you to start and operate a rocket mass heater for one month.


(source)

To get certified for this BB, you must heat a space with a RMH for one month and meet the following criteria:
  - use two temperature logging thermometers (one indoor, one outdoors)
  - outdoor temp was always less than 40 degrees F
  - indoor temp was kept at least 65 degrees F, averaging at least 70 degrees F or more

To get certified for this Badge Bit you must provide:
  - provide graphs of logs
     - take three data points (one at morning, noon, and evening) at about the same times each day
  - provide pics of the space being heated and the rocket mass heater
  - provide a twelve paragraphs about the experience
 
You would be much easier to understand if you took that bucket off of your head. And that goes for the tiny ad too!
Greenhouse of the Future ebook - now free for a while
https://permies.com/goodies/greenhouse
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