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Here’s a cheap homemade air conditioner made from an insulated polystyrene box, icewater, aquarium pump, copper tubing and a fan. [via] – Link.

Hot? Other other homebrew air conditioners:

  • Air conditioner make out of LEGOs – Link.
  • Poor Man’s Air Conditioning… – Link.
  • DIY cheapest air conditioner in the world – Link.
  • Teens invent economical air conditioner – Link.
  • Homebrew Air Conditioning for under $25 – Link.