Iffy Books | 319 N. 11th St. #2I, PHL
hacking, free culture, gardening, zines
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On February 11th and 12th we’re hosting a two-day workshop on how to build a tent-safe heater that burns isopropyl alcohol or ethanol.
Workshop Day 1: Making the burner
Workshop Day 2: Testing, wicking, caging
image by heater bloc via twitter