India, Dec. 10 -- Winter has arrived, bringing cooler mornings and evenings that make hot water feel even more essential than usual. As temperatures drop, the demand for reliable heating increases across every household. This is often the time people start reviewing their water heating systems, considering upgrades, or debating the merits of different types of geysers. The instant geyser and the storage geyser are the two most common choices, and both have clear strengths that appeal to different needs.

Although both appliances provide hot water, they do it in very distinct ways. Instant geysers focus on rapid heating through a compact, tankless system. Storage geysers work with a larger tank that heats and holds water for consistent use...