Solar Hot Water Heaters and Its Various Requirements

A Solar hot water heater is the best way to save your money, time as well as energy and is used extensively to every nooks and corner of the globe. It reduces the electricity bill by almost 30%. The best part is that, these heaters are very much advantageous, safe and eco-friendly than the old electric heaters.

Types of systems in solar hot water heaters

There are two kinds of system available in solar hot water heaters, basically classified on the basis of incorporation of devices. They are:

1. Active system
2. Passive system

In active system, devices like pumps and other types of controls are incorporated. Where as, in the passive system, these kinds of devices are absent.

Working of solar hot water heater

In a solar hot water heater, the water is brought in the pipes and is then exposed to the sunlight. Using the heat of the solar energy, the water is heated and then supplied to the entire house. The heated water is transferred to the storage tanks by the use of devices of the active systems, such as pumps etc. and then the from the storage tank, it is supplied to the passive system by the use of gravity.

Few measures

There are few measures that have to be taken in a solar hot water heater to make it function properly. Few of them are mentioned below:

• Basically, the storage tank should be well insulated so that it can properly store the water and supply it to the user at the time of use.

• Many a time, it is seen that the solar hot water heater is having two storage tanks. This is to store the heated water and further heat it.

• Solar panels are to be connected so that the batteries are charged properly.

Importance of back-up system

Back up is very important if you have a solar water heater. This does not mean that these are inefficient. But it is required, because it works by using solar energy. The sun might not be clear in the sky or there may be clouds. For those days back up is very important.