Hacked Gadgets Forum

February 7, 2008

DIY Solar Refrigerator Water Heater

at 11:29 am. Filed under Crazy Hacks, What Were They Thinking


With millions of people’s wallets being drained by household appliances and heating/cooling, energy saving mods are very popular these days. Mother Earth News .com and Miles Free elaborated with each other to develop a cheap but very awesome household mod.


"So the boys pulled the liner out of the Hotpoint’s door and replaced it with the heat exchanger. Then a couple of holes were drilled through one end of the door and a couple of pieces of scrap copper tubing (also scavenged from the refrigerator) were used to extend the exchanger’s coils through the insulated wall. (It was exceptionally easy to slip the recycled 3/8-inch tubing right over the ends of the 1/4-inch plumbing and solder the "splice" into a watertight junction.)

Next, six holes were drilled through both the exchanger plate and the "back" of the collector box (actually, through the main body of the old refrigerator door) and the two were fastened together with stove bolts. Some odd pieces of cardboard were then used to cover the insulation that was still exposed around the "rim" of the exchanger (this was done purely for appearances), and the heat exchanger and its surrounding paperboard trim were all painted flat black.

Finally, two pieces of glass were cut to fit as a "top" for the collector box. The panes were mounted just under the old door’s rubber gasket (how’s that for having just what you want just where you want it?) and seated in place on a bead of silicone caulking."


Link: Mother Eath News