A solar water heater is a heat absorption device, which uses the energy from the sun to heat water for personal use. There are many different types of solar water heaters; however they are all based on the same basic principle. A solar panel (black body) absorbs shortwave radiation and transfers the heat energy to a water storage tank for later use. Solar hot water systems can be a cost-effective way to generate domestic hot water for your home, they can be used in any climate, and the fuel they use. The sun is free.
Solar Water Heaters can be used to provide hot water for domestic or commercial buildings, such as swimming pools, large industrial applications or space heating in cold climates with good levels of irradiation.
Although local conditions and traditions influence the market, it is possible to identify two prominent types, vacuum tube Solar Heaters and flat panels. A vacuum tube system has a tank connected to a panel of glass tubes that heat the water as it passes through; the efficiency of the panel is improved because there is a vacuum between the two layers of glass tubing. Flat panels are similar: however they do not use a vacuum between the water and the glass and as a result they can be more than 20% less efficient than evacuated tube panels; as stated by a DTI report. Available on request. Traditionally flat panels are cheaper and less intrusive; however that is now changing.
Yes, the evacuated tubes have a coating epically designed to absorb shortwave radiation which is always present and so it will produce some heat; however to achieve the best performance direct sun light is best.
The potential savings for fitting solar water heating has a twofold effect. Your bills for domestic water could be reduced by 67% if you were using our panels, and the reduction in CO2 is helpful for reducing your carbon footprint. One other positive aspect to fitting solar heating; is the advantage to a future buyer of the property. They are getting a house with free hot water at no cost to them. You might not recoup the full cost of the solar system however you might speed up the sale of the property.
When you buy a more efficient fridge, the payback is not a calculation many people make, and so buying a solar water heating system also falls under the same category. You should look for cost against purpose, and solar heating is an excellent example of this, because after the initial purchase the energy that is required to heat the water is totally FREE for the life of the system.
Yes, they can be installed on flat or sloped roofs at angles between 30 and 50 degrees. There should be: little or no shading and preferably a Southern orientation of the collectors.
Yes, the system can be designed to give you an average output temperature of 60?. In summer months it could go to 100? or more. It is advisable to have a thermostatic mixer valve; this regulates the output temperature to safe levels.
Maintenance is minimal for the systems. Periodic checking for leakage and occasional cleaning of the glass tubes is all that is required. Should one of the glass tubes be broken, it is fairly inexpensive and easy to replaced, your local distributor will carry stock spare tubes.
We stock replacement parts for all of the goods we sell within the UK and Europe. Onsite repairs should be carried out by the installer.