Solar hot water systems typically consist of solar collectors, a storage tank, and a circulation system. The collectors absorb heat from sunlight and transfer it to a heat transfer fluid or directly to the water in the storage tank. The heated water is then available in showers, sinks, or other hot water applications.

Solar hot water systems can be effective in a wide range of climates. While they work best in areas with ample sunlight, advancements in technology have made them viable even in less sunny regions. In colder climates, additional measures such as freeze protection systems may be necessary to prevent damage to the system.

The space requirements for a solar hot water system depend on various factors such as the system size, number of collectors, and the available mounting options. Typically, roof space is utilised for installation. However, ground-mounted systems or other alternative arrangements can be considered if roof space is limited.

Solar hot water systems can still provide hot water on cloudy or rainy days, although their performance may be reduced. The efficiency of the system depends on the amount of sunlight available. To ensure hot water availability during periods of low sunlight, solar systems are often designed with backup heating options, such as electric or gas boosters.

Solar hot water systems generally require minimal maintenance. Periodic inspections, including checking for leaks, monitoring fluid levels, and ensuring proper system operation. Additionally, it is advisable to have a professional inspection every few years to ensure optimal system performance.