New Delhi, Dec. 12 -- A solar water heater is gaining attention among households seeking lower operating costs, yet the technology is still fairly new to most buyers. The number of solar water heater models in the market is limited, which can make the selection process feel narrow. Even with fewer choices, many families are starting to see the long-term savings and environmental benefits offered by this system. The idea of heating water directly from sunlight is appealing, especially at a time when electricity bills continue to rise.

A solar water heater uses collector panels to absorb sunlight and transfer heat to a well-insulated storage tank. This process is simple and efficient. A small solar water heater is suitable for smaller home...