Solar water cooler

 
A water cooler or water dispenser is a device that cools and dispenses water. They are generally broken up in two categories: bottleless and bottled water coolers. Bottleless water coolers are hooked up to a water supply, while bottled water coolers require delivery (or self pick up) of water in large bottles from vendors.If you live in a relatively dry climate, and have basic skills, you can make a solar evaporative cooler just like we did. Using solar cooling will save you money on your electric bill each month that you use it. The cost of making the solar cooler can be returned in a short period of time with the savings.
 
We made our own solar air conditioner and so can you. We have put together a nice set of instructions showing how we made our solar cooler. The instructions are simple and easy to follow. They are in Adobe Acrobat (PDF) format and can be viewed and saved right from this site. Just click on the link below and hit the save button. You must have Adobe Acrobat Reader to view the plans.
 
A passive solar water heating system uses natural convection or household water pressure to circulate water through a solar collector to a storage tank or to the point of use. Active systems employ pumps and controllers to regulate and circulate water. Although passive system are generally less efficient than active systems, the passive approach is simple and economical.
 
Passive water heating systems must follow the same parameters for installations as active systems – south facing unshaded location with the collector tilted at the angle of our latitude. Since the storage tank and collector are combined or in very close proximity, roof structural capacities must accommodate the extra weight of a passive system which can be 300 pounds or more.