Turning a $150 AC Into a Super-Efficient Geothermal Unit! | Tech Ingredients

Since this video is an hour long, the result of digging a small bore hole and routing water pipes through, and hooking those up to a slightly modified window AC unit resulted in a 250 to 300% increase in overall cooling efficiency, and effectively turns a 5000btu air conditioner into a 15000btu unit, but with less power draw than an unmodified (control) 5000btu unit.