Solar hot water heaters are proven and ready for the market. With energy prices rising and no sign of decline, we must increase awareness for alternative energy. Solar thermal technology has improved and is as efficient as natural gas by 70-

80% efficiently equivalent. The development of evacuated tubes have for the most proven performance high temperature collectors. As long there is UV ray it absorb the sun radiation and keeps the heat between the vacuum layers, therefore sustain the temperature to keep increasing as long as there is sunshine. The hesitance of acceptance were that it been treated like the solar photovoltaics panel that require more area for large collecting of sun radiations. Solar thermal technology by evacuated tubes have been accepted in large scale by Europe, Asia, and the Caribbean. Unfortunately, in North America Canada have yet to accept this into our daily lives and we have the greatest global warming effects the most as the Northern have temperatures warming than usual as iceberg are melting and wildlife affected. The replacement of just hot water supply do not seems to stimulate interest

the great as the upfront cost of an solar water heaters range from $3000.00-$3500.00. But in long term actual savings are substantially high to the investments. In Europe, realization of savings are as high as $2500.00/year. In careful study of utility bills cost are incurred by adding delivery and customer charges to avoid actual cost of gas each year.

With introduction of space heating generated by solar collector seems to be more of trend as substantial amount goes to space heating. Power generated from the sun have enough energy to heat a home. Here is the calculation, we received approximately 3.93kwh/m2/day in Toronto, Ontario and by placing 2 collectors panels area 8.4m2 will generate 33.01kwh/m2/day= 112.636BTUs which is more than sufficient for an average home space.

Solar thermal technology is the answer to hot water usage and space heating. But the common question are will it generate enough energy to heat during the winter days when sunshine is the most least. The second question will be that it will consume electric energy. The winter days are getting more sunshine days than usual and using the statistics the number of days with sunshine are almost 60% to the cloudy days. Now one must realized that global warming have a lot to do with this, and generally speaking sunshine days starts in March to late November and thus leaving Dec-Feb which basically only 90days period ,this leaving 54 days with cloudy period, Now one must realized that by calculation the

sunshine days are way greater already to cloudy days. The back up electric heat does consume energy but as compared to using natural gas equivalent it is much cheaper. Lets say a furnace is to heat a house space energy as to a 1500watts (1.5kw) to heat a a 300 liter storage tank that can heat a house space with 16.5kw which is 56.320BTUs almost common to average furnace. The back up heat element does not boil the water but sustain the temperature of water and with no burnt residue. The awareness and habitual usage will be the answer to using solar thermal energy as we waste lots of energy rather than conserve it as the mind set it was inexpensive those days.

Time has come that awareness of energy are a main concern to our lives and being able to seek alternative as long term will be the thing to see in the near future. The last main concern is the appeal look of a storage tank in the roof ,and question like will it damage the roof and weatherproofing. Well generally speaking, it is more of a set mind rather than structurielibility as roof are usually have a life span of 15years top and the total weight of the tanks are equal to 5-6 people in the roof, which we generally see roofers with more than that on the roof. The appealing look again if that is a common sight if your next door neighbor installed 4 dish satellite dish.

In Japan the tank in roof are as common as a dish ,so is Greece which is a growing rate of every 10 house 9
have the tank. So Basically it is a state of mind.

Solar Thermal system comes in two types Direct and Indirect. Open system which is known as direct, passive
because system are open loop and connect directly to household hot water supply. This uses the thermo siphon
theory that hot water rises and cold water sinks and therefore tanks are always above collectors to received the hot water. Direct usually are inexpensive, reliable little or no maintenance at all. Requires no moving parts and to suit sub zero climate additional anti freeze protections are required.

The indirect system are also known as active closed loop which is suitable for sub zero climates and uses anti freeze heat transfer liquid (glycol) to a storage tank inside the home. All the evacuated tubes operate with heat pipe inside tube and transfer heat to manifold and then to storage tank heat exchanger. This system is more expensive as it requires more

parts. Each applications no matter how be design serve the performance and depends on individual expectations. Will all this be beneficial to user ,it will definitely does saving in the long terms and once proper installed system do not require any maintenance and system usually outlive the roof life span. Once getting used to it ,it will provide just like any hot water supply could it be gas or electric. Understanding that all heat generated are by the high temperature evacuated tube which is build with double layer vacuum tube that absorb the UV and retained heat inside the tube to sustain the heat exchanger. The creation of the tube do not allow snow to be retain on tubes as the temperature slight changes the snow slips of the tubes with sunshine hits the tubes. Wholesale and supplies of solar thermal parts and heating. Solar collector panels ,solar part and accessories, wall radiators and floor heating parts. Complete supplies of all heating application service and estimate on home installations. Provide after sales service calls and consultation to heating solutions. Will do commercial project where involve large scale hot water demand and swimming pools applications. The collectors are connected in series and using a closed loop to a heat exchanger (stainless steel) as pools have chlorine chemicals that are erosive to copper. Some system have a bypass to be able to use that during winter where pool are not in use to divert to a storage tank for radiant heat since panels are up already.