| ★ |  Homemade Salt Batteries running thermo-electric fans! Easy DIY! strong breeze! salt & sand batteries | | 1 | Estados Unidos | |
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| 12 |  DIY Sand Battery Air Heater! 12v Radiant Air Heater! 25-40 lbs/sand! 160F/72C home/vehicle/tent heat | | 2.3K | Estados Unidos | 90 |
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| 2 |  Make a Sand Battery Air Heater at home! no-electricity needed! strong air heater! - w/fan! 300F/150C | | 1.3K | Estados Unidos | 93 |
| 19 |  Get AC-Type Cooling with Just a Clay Pot! #DIY | Desi Ideas & Creativity @desiideascreativity | 1.2K | India | 89 |
| 11 |  Sand Storage Air Heater! DIY Tabletop Space Heater! breadbox conv. sand battery + heat powered fans | | 1.1K | Estados Unidos | 90 |
| 14 |  DIY "Suitcase Style" Solar Power Generator! AC/DC/USB smart charging (P2 Ext. Version) Portable Pwr | | 938 | Estados Unidos | 90 |
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| 7 |  DIY Candle Powered Desk Fan! (using a strip of copper and a brick) tealight powered 3-speed easy DIY | | 317 | Estados Unidos | 91 |