What are Solar Water Heaters?
Solar Water Heaters. Using energy from the sun is not only an extensive economical value when it comes to your electric bills but it’s also highly environment friendly in the form of a renewable energy technology reducing your carbon footprint. The idea of using free heat from the sun to warm domestic water is just as good as taking advantage of an actually free energy that has been long become an ordeal of most households in a regular basis by way of huge monthly electric bills. Certainly, there is a price to install solar collectors but the prize of liberating yourself from supposed to be free energy is indeed priceless. Investment wise, it delivers high return on investment clever enough that you now can take in control of your energy needs.
In order to heat water using solar energy, a solar collector is often installed on a roof or a wall beaming the sun’s rays or light. The uses of solar panels commonly called collectors are fitted to do the energy absorbing system. The heat from the sun collected heats up the water which is stored in a hot water cylinder. Anyhow, depending on the amount of sunlight generally present in your area, there can be a boiler or immersion heater that can be installed alongside to be used as a back up to your water heating system to reach your desired temperature at all times.
The solar water heating systems are designed to carry out hot water all year round. However, during winter season there may be no sufficient sunlight enough to deliver sufficient hot water. In this case electric or gas back-up usually installed alongside solar water heating system is used.
The types of solar panels for water heating; one could be on “evacuated tubes” this can achieve extremely high temperatures, another one is the “flat plate collectors” typically an insulated metal box with a glass glazing and absorber plate in dark colour which are generally fixed or fitted on the roof tiles or integrating it into the roof. The “integral collector – storage systems” or the “batch” systems are made of one or more dark colour or black tanks or tubes in an insulated glazed box.
When it comes to maintenance for solar water heating systems, costs are generally low as it only requires very little maintenance. You only have to carry out maintenance checks from time to time to make sure your water heater system is working properly. It’s easy to bring into your attention when the system is not working properly, basically when you notice it’s not heating up your water or is not delivering the amount of heat it has been designed according to specified conditions.
There are two types of solar water heating systems, the “Active Solar Water Heating System” and “Passive Solar Water Heating Systems”. The Active Solar water heating has a system of circulating pumps and controls which operates in two types of systems the “direct circulation systems” and “indirect circulation systems”. The two most common systems with indirect circulation systems are “antifreeze” and “drainback systems”. The Passive Solar water heating doesn’t have circulating pumps and controls. The two basic types of passive systems are “integral collector-storage passive systems” and “thermosyphon systems”.