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Fri, 16 Mar 2007 23:55:00 Most of Israel homes have solar water systems.Harnessing the sun’s rays, they supply households with hot water for about eight months a year. By law, all houses constructed in Israel must have solar water systems. As a result, Israel is the world leader in exploiting solar energy for household use
By Gila Brand
What are those funny contraptions on the roofs of Israeli homes? If you look out the window of the plane as it flies over Tel Aviv and prepares to land at Ben-Gurion airport, you will already catch a glimpse of them. They are solar water heaters.
Harnessing the sun’s rays, they supply households with hot water for about eight months a year. By law, all houses constructed in
Israel must have solar water systems. As a result, Israel is the world leader in exploiting solar energy for household use.
How does it work? Well, think of a car parked in the sun on a hot summer’s day. You open the door and a blast of heat greets you. The sun’s rays penetrate the glass windows and the heat is trapped inside, turning the interior of the car into a veritable furnace.
The same principle is used to heat water for your shower. The system consists of two parts – a collector and a water tank. The collector is a glass panel fitted with black water pipes that absorb the sun’s radiation. Since hot water is lighter than cold water, the heated water in the pipes moves up towards the tank, which sits at a higher level, and the cold water sinks from the tank to the bottom of the collector, creating a natural circulation cycle.
A 150-liter tank (which is enough for most families) requires about 4 hours of sunlight on a non-cloudy day to heat up. In the Northern Hemisphere (Europe, North America and Asia), the collectors would be positioned facing south; in the Southern Hemisphere (Australia and South America), they would face north.
The cost of installing a solar water heater is about $500. In a sunny place like Israel, you can recoup your investment within something like 4 years. Inside the tank is an electric heating element for use on overcast and rainy days.
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sandy luo
solar water heater
Dear Sir/Madam,
We learn from the website that you are in the market of solar products. We would like to take this opportunity to introduce our company and products, with the hope of establish business relationship between us.
We are Kingeagle Solar Energy Industrial Co. Ltd., as a specialized manufacturer of solar water heater, PV and accessories including all glass vacuum tube, micro computer controller, connection, hose, valve and etc .the solar heater has obtained PICC ’s (People's Insurance Company of China) quality insurance and with the approval of ISO9001 and CE certificate. we always treat the quality and quality control as our company's life in the market. Based on this, we guarantee our distributors 5 year guarantee for our products. We produce over 250,000 unit every year., which sales in China domestic market and also export to Spain, Italy, USA and so on.
You still can visit our website http://www.kingeaglesolar.com which includes our full range product line.
Should any of these items be of interest to you, or you have any questions about our products, please feel free to contact us. We will be happy to give you a quotation or an answer upon receipt of your detailed requirements.
We are looking forward to your prompt reply.
Sincerely,
Sandy Luo
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Notice article's source. Non-commercial publication only. The published articles do not necessary represent FreeEnergy.ca point of view. |
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