A solar hot water heater is an eco-friendly and cost-effective method of heating water for residential, commercial, and industrial usage. This system uses sun energy to provide heat energy for water without the need to use conventional methods that depend upon electricity or fossil fuels for heating.

A solar hot water heater uses solar collectors mainly mounted on rooftops while operating. These collectors absorb solar heat and transfer the heat to the water stored in an insulated tank. Depending upon the type of system, this heated water can be immediately available or stored for use in the future. Two principal types of solar hot water systems are active systems using circulation pumps and passive systems where circulating water is relied upon due to natural convection in a system.

Advantages of a Solar Hot Water Heater
Saves on Cost: This is because water heating uses solar energy, thereby cutting down the cost of energy.
Environmentally Friendly: These devices make use of clean energy. Therefore, carbon emissions are reduced and the environment becomes friendly.
Low Maintenance: It is long-lasting, thus the only maintenance it requires is cleaning the solar collectors every so often.
Energy Efficiency: Solar water heaters can provide hot water throughout the year, even in colder climates, with proper system design and insulation.
Applications
A solar hot water heater is ideal for various uses, including domestic water heating for bathing, cleaning, and cooking, as well as industrial applications that require large volumes of hot water.

In conclusion, a solar hot water heater is a reliable, cost-effective, and eco-friendly solution for meeting daily water heating needs. Its ability to utilize renewable solar energy makes it a valuable investment for both homes and businesses, with long-term energy savings and sustainability.