Hot Weather · 20 minutes · Basic
Box Fan and Ice: What a DIY Cooler Can and Cannot Do
A five-minute cooler works in dry air and backfires in humid air — here is how to tell which you have.
This is for educational purposes only. Not professional medical, electrical, or safety advice.
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Warning
Keep electrical fans and cords away from standing meltwater, and never run a generator indoors or in a garage to power a cooler.
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Sources & further reading
Free download
The 72-Hour Grid-Down Checklist
One printable page: water, food, power, communication, first aid, security and documents.