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Dsc01839 Figure 6
Franco writes –

I completely changed the design of the earlier version. For this DIY Air Conditioner, I made a channel-shaped heat exchanger to optimize cooling.

Materials used:
• Aluminum repair roll ($10-15)
• Nuts, bolts, and washers ($5-10)
• Waterproof silicone ($5-10)

Total cost: $20-35

The heat exchanger is made from straight sections of aluminum (cut from the repair roll) bent into a U-shape, and bolted together, as shown (Figure 1, 2, 3). Silicone was used to seal the gaps along the edges and around the bolts.

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Homemade air conditioner – Link.

Phillip Torrone

Editor at large – Make magazine. Creative director – Adafruit Industries, contributing editor – Popular Science. Previously: Founded – Hack-a-Day, how-to editor – Engadget, Director of product development – Fallon Worldwide, Technology Director – Braincraft.

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