Solar Water Heating is a cost-effective way of generating hot water supply in homes. Using this type of water heating system will help in reducing harmful emission. Solar water heaters are widely used in almost every part of the world they are also called solar domestic hot water systems and are cost-competitive and useful in many applications. Although initial cost of these heaters are high but to use them is very easy as their fuel is sunlight which is free. Besides this, solar heating system is environment friendly also and that is why; this system of water heating is preferred by many people all over the world.
Solar Water Heating operates by heating cold water by using energy from sun. It collects sunlight’s energy in its solar collector, which is then used to heat water. This hot water is stored in hot water container or cylinder in order to use it in future. You may get about 70% of household water supply from an average water heating system. But generally the amount of water supply largely depends on sunlight hours. If your solar heating system gets sunlight for more hours, you may get more amount of hot water supply but if there is no sunlight or little sunlight then you will get very little amount of hot water supply.
Amount of water supply also depends on the type of Solar Water Heating system. There are many type of solar heating systems such as direct or indirect heating systems, active and passive systems, passive direct heating system and active indirect heating systems. Passive and active solar heating systems are two most commonly used types of solar heaters. Passive solar heating systems do not require electricity i.e. it does not use electricity to generate hot water. This type of system requires storage tank and a collector which should be placed on top of house. The water heating system requires heat-driven pipes or convection which are used to circulate heating fluid i.e. water in the system. They cost less and are extremely low in maintenance.
On the other hand, active Solar Water Heating system is another type of solar heating system which uses external power to provide hot water. This type of water heating system requires pumps to circulate water in the system and the water heating system is bit expensive, but it offer huge benefits.
Thus in short, you must use the best type of Solar Water Heating systems according to your needs so as to gain maximum benefits.