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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 sand badge in Rocket.

This BB requires you to start and operate a batch box mass heater for one hour. You are not required to build your own rocket mass heater but you will need access to one.

Some threads on Batch Box Rocket Mass Heaters:
  - Batchbox RMH from Innovators Event
  - Explanation of Batchbox RMH
  - Emergency Batchbox RMH for Wofati
  - Batch Core Without Riser

NOTE!  Starting a batch box rocket mass heater is not like starting a conventional wood stove.   You MUST warm the riser first!   So you will either put paper in the riser, or you will start a small fire near the back of the batch box to help warm the riser.   All in an effort to keep smoke from coming out.


Peter van der Berg on Batch Box RMH



Lighting and Loading a Batch Box RMH




For this badge to be counted, the full operation of this BB is done with zero smoke leaking into the room.   ZERO!  

To get certified for this Badge Bit you must provide:
  - 4 pictures
       o pic of starting materials, PROPERLY placed in the batch box before fire
       o pic of fire started to warm the riser - at the back of the batch box
       o pic of additional wood added
       o pic of even more wood added
COMMENTS:
 
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This is my operation of a Batch Box RMH at the PEP 1 course.
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Preparing my materials
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Placing the paper in the riser to prime the batch box
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The fire warmed it up brilliantly
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I started the fire
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And then added more wood
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And some more...
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And a bit more
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After an hour, the fire was still going and the shop was toasty warm
Staff note (Dave Burton):

I hereby certify this BB as complete!

 
steward
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After two unsuccessful operations of the cyclone batch box heater in the Red Cabin, Paul suggested checking the chimney for blockages.  Sure enough, it was 75% blocked off by ash.  Cleaned out the elbow, cleaned the pipe, replaced the elbow with a tee and cobbed it in place.  Started it up and it was worlds better.  
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Staff note (Dave Burton):

I hereby certify this BB as complete! (I kinda would like to see more of the RMH to know it is a batch box RMH. The last picture was the one that clued me in that the structure was indeed a batch box)

 
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The workshop down at base camp at the pep1 event.
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Ready to heat the riser
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Kindling is going good. Here's my first load.
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Second load
Staff note (paul wheaton):

I certify that this BB is complete!

 
pollinator
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Part A, starting the batch box in the workshop
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Leif Ing
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Part B, adding fuel
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Staff note (paul wheaton):

I certify that this BB is complete!

 
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First time using a rocket mass heater. Really enjoyed it and liked learning about the way these operate. It did great no smoke out of the door and the priming caught the small tipi initial fire so it helped to get it primed and hot enough to start sucking the smoke in more aggressively before having to open the door to add more wood.
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Staff note (paul wheaton):

I certify this BB is complete.

 
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I now realize I misread the first requirement of a "pic of starting materials, PROPERLY placed in the batch box before the fire."  Looks like I mistakenly took a "pic of starting material before fire."  I mean, properly was even all caps.
Placing the pics here anyway.  It's a very nice heater for the classroom.
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Classroom - Starting materials, PROPERLY placed in the batch box before fire....uhh...
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Classroom - Fire started to warm the riser - at the back of the batch box
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Classroom - Additional wood added
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Classroom - Even more wood added
Staff note (paul wheaton):

I certify that this BB is complete (although I think wood should not go in the riser)

 
steward
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I finally operated the batch box rocket mass heater in The Shop without releasing any smoke!

These are the starting materials and pieces of wood that I'll be burning.



These are my starting materials properly placed in the RMH.



These are my starting materials after starting the fire.



This is my first load of wood. I lay the wood kind of catty-wampus so that there is good air flow to ensure the fire burns strongly!



This is my second load of wood.



This is my third load of wood.



I think this is a nice happily running batch box RMH!

Staff note (Mike Haasl):

I certify this BB complete! Good job keeping it from smoking!

 
gardener
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At the 2019 PEP Jamboree, I had rockets coming out of my ears, including running the Batch Box in the shop:
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The lesser known Trail of Tissues, leading through to the riser
The lesser known Trail of Tissues, leading through to the riser
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Starting the fire with a warm chimney
Starting the fire with a warm chimney
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More wood!
More wood! (Yeah, I know this picture sucks, three big logs went in)
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More wood!! (Yeah, I know this picture sucks, three big logs went in)
More wood!! Actually visible!!
Staff note (Mike Haasl):

I certify this BB complete!

 
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