Globally, solar water heaters have become a necessity. Hot water is required for a variety of purposes by people in India and abroad. People who live in other countries, on the other hand, are in desperate need of a water heater because the weather is always cold. With the help of the government and a marketing structure, India has come a long way in terms of providing solar water heaters.
A solar water heater is a device that collects sunlight and uses it to heat water in an insulated tank using solar energy. This system is typically installed in an open area, such as a terrace, where the most amount of sunlight can be received. In comparison to other water heaters, this system is more cost effective because it uses solar energy rather than electricity. It also generates hot water for sanitary purposes without releasing CO2.
Solar water heaters come in a variety of shapes and sizes, each with its own set of features. In hilly areas, these solar water heaters are also used to heat rooms when the temperature is low, replacing room heaters. Depending on the collector used, we will discuss various types of solar water heaters:
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Water heater with solar batch collectors
These are simple water heaters with a tank that is exposed to the sun. The water is heated and stored in one batch at a time, hence the name "Integrated Collector and Storage." These water heaters are a low-cost investment that can heat water for a family of two to three people. The water storage tank should be completely sealed because it will be kept on the roof overnight.
Water heater with a flat plate collector
These are traditional water heaters, but they are more efficient than modern technology. The system is activated by a safeguarding panel, which is made of copper and connected to water channels. The water is enclosed in a metal case with solid protection to keep the heat in, and it is then shielded from the airspace by a sheet of glass or coating. They last for a long time due to their metallic nature. However, when an additional antifreeze solution is added for use in colder climates with sub-zero temperatures, they tend to be more expensive.
Water heater with evac tube collector
These are new modern water heaters on the market, consisting of evacuated tubes with a heat pipe enclosed by a glass tube under vacuum. Air is evacuated between the two layers of gloss on the glass tubes. Because of the increased pressure on the heat pipe, the bubble rises quickly, allowing the heat to be collected to its maximum potential in the collector. Water flowing through the inner tube absorbs this heat.
These are a few different types of solar water heaters that can be used to heat water for a variety of purposes, including heating rooms to keep them warm in colder climates. You can use any of them if they are appropriate for the area and climate in which you live.