Solar Water Heating System
solar water heaters solar water heater technical solar water heater Design Solar Water Heaters Systems solar water heater Pricing solar water heater Q&A solar water heater Images solar water heaters about
Solar Water Tanks Solar Insulated Piping Solar Heat Exchanger Solar Controller Solar Evacuated Tube complete solar heating packages



History of Solar Water Heaters

solar water heater conceptHorace de Saussure, a noted Swiss naturalist, observed in the 1760s, "It is a known fact, and a fact that has probably been known for a long time, that a room, a carriage, or any other place is hotter when the rays of the sun pass through glass. To determine the effectiveness of trapping heat with glass covers, de Saussure built a rectangular box out of half-inch pine, insulated the inside, and had the top covered with glass, and had two smaller boxes placed inside. When exposed to the sun, the bottom box heated to 228 degrees F (109 degrees C) or 16 degrees F (9 degrees C) above the boiling point of water. Horace de Saussure was unsure of how the sun heated the glass boxes. Today we can better explain what happened. Sunshine (photons) penetrated the glass covers. The black inner lining absorbed the sunlight and converted it into heat. Though clear glass allows the rays of the sun to easily enter through it, it prevents heat from doing the same. As the glass trapped the solar heat in the box, it heated up. Its inventor realized that someday the hot box might have important practical applications, as "it is quite small, inexpensive and easy to make." Indeed, the hot box has become the prototype for the solar collectors that have provided sun-heated water to millions since 1892

In the 1800 people started experimenting with the suns solar power by placing into the sun a metal water tank, painted black, into the sun to absorb as much solar energy as possible. These were the first solar water heaters on record. The downside was that even on clear, hot days it usually took from morning to early afternoon for the water to get hot. And as soon as the sun went down, the tanks rapidly lost their heat because they had no protection from the cool night air.

1st solar water heaterThe shortcomings of theses bare tank solar water heaters came to the attention of Clarence Kemp, who sold, in Baltimore, Maryland, the latest home heating equipment. In 1891, Kemp patented a way to combine the old practice of exposing metal tanks to the sun with the scientific principle of the hot box, thereby increasing the tanks' capability to collect and retain solar heat. He called his new solar water heater the Climax - the world's first commercial solar water heater. Kemp originally marketed his invention to eastern gentlemen whose wives had gone off with their maids to summer at some resort, leaving their husbands to fend for themselves. The solar water heater, Kemp advertised, would simplify housekeeping duties for this class of men already burdened by their wives and domestic staffs absence and unaccustomed to such work as lighting the gas furnace or stove to heat water.

Modern day solar evacuated tubes use the latest  magnetron sputtering deposition techniques, and layers of aluminum-nitrogen and aluminum base. This produces tubes solar heater that can harness nearly 92% of the suns energy.This new technology has caused the world to look at the renewable source from a different light. Currently there are over 1.5 million solar water heaters in the USA over 1/3 of the Asian population use solar water heaters, and this number is rapidly climbing.

solar water vacuum tubes



face book sola tubs 

Send me More Information

Security Image

Enter what upper case letters you see above:

Recent Blogs
Feb 20, 2014
Message: I am researching solar forced air heating for my house and am looking for information on sizing a solar heating system.   Read More...
Jan 14, 2014
Message: Hi there I have been doing lots of research on solar heating and I have read that the solar vacuum tubes get much hotter than a fla Read More...
Nov 26, 2013
Message: Hello: I have bought a 500 gallon storage tank for shoulder season with my wood boiler. I'm thinking a couple of Solar panels w Read More...
Sep 27, 2013
Message: Hi there I have come across your site and think that you guys have it covered when it comes to solar water heating.  I was won Read More...
Jul 26, 2013
Message: Alan, I received your solar report after I submitted my request from the energy savings calculator.  It is very impressiv Read More...
Locate/Become Dealer
contact us
Contact Us
Click here for Solar Grants & Subsidies
Calculate the number of solar heaters you need

204-977-3111 Toll Free 1-800-31-9054 305 McKay Unit 20 Winnipeg MB R2G 0N5

Help Desk Software