This is a badge bit (BB) that is part of the
PEP curriculum. Completing this BB is part of getting the iron badge in
earthworks.
For this BB, you will create 3 passive garden heaters!
(source: Passive Solar Garden Heater - permies.com thread)
For more information, please read the permies.com thread about
Passive Solar Garden Heater.
Related topic:
The Truly Passive Greenhouse
Minimum Requirements:
- 20 foot deep 6 inch hole in the ground with steel casing
- 4 foot tall cap with glass on south side
- black ¾ inch tube exposed to glass and reaching bottom of hole
- note that glass needs to not block UV
To get certified for this BB, provide proof of the following as pictures of a video (<2 mins):
- equipment and materials at the build site
- partway through the building passive garden heaters
- completed passive garden heaters
Build 3 Passive Garden Heaters - earthworks.iron.passiveheat PEP BB
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