This is the easiest DIY Air conditioner I’ve seen … combine it with solar and you are off grid and really COOL!
This is very simple and if you combine it with some pretty slick solar and off grid ice making strategies (look for my other related posts), you can disconnect! Just drop some ice in the cooler and, well, stay cool!!
The nice thing about using a cooler is you don’t need to mess with insulation since it is already there, you have easy built in access to drop in the ice (just open the cooler door), and it is pretty rugged.
Homemade AC Air Cooling unit produces very cold air. 42F air (in an 80F room). items needed: ice chest (hard-sided or styrofoam), pvc pipe, small fan and ice. (small solar panel is optional). great for space cooling. 3 ways to power it: a solar panel, a battery or an automobile (using 12v socket “cig. plug”). this air cooler combines the durability of the “5 Gallon bucket air cooler” with the extra cooling power of the “styrofoam ice chest air cooler”. specs: fan: 12VDC 10w 0.8A. solar panel: 15 watt (1 amp). works best in semi-dry or dry climates. (drier air cools down easier/faster than humid). air temperature during testing 80F (4% relative humidity). block of ice lasted 5 hours (larger blocks can last up to 10). to run the cooler 100% off-grid check out my solar ice making/freezer vids.