Here's a design for a solar heater built entirely from recycled materials
. Might be worth having in an emergency - seems to be easily made, and quite portable.
the intersection of emergency preparedness, public health and environmental policy
by Jon on May 2, 2007
Here's a design for a solar heater built entirely from recycled materials
. Might be worth having in an emergency - seems to be easily made, and quite portable.
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