Solar water heaters have become a popular choice to traditional electric water heaters in many parts of the world, especially in sunny regions. They offer a renewable way to heat water for home use and can help reduce our reliance on non-renewable energy sources. However, like any other technology, there are some concerns associated with solar water heater installations that need to be thoroughly evaluated before making a decision.

One major risk is the risk of improper installation. If the solar water heaters are not installed according to manufacturer guidelines, they can be less effective and may not perform as expected. This can lead to wasted energy, repair costs, and even potential risks to human health. Therefore, it is essential to hire qualified and trained professionals for installation to ensure that the solar water heaters are installed properly.

Another risk associated with solar water heater installations is the potential strain to the roof. Solar water heaters require attaching the solar collector to the roof, which can exert excessive weight and stress on the roof. Therefore, owners need to evaluate the stability of their roof to ensure that it can support the added weight of the solar water heater. Any strain to the roof or foundation of the house may lead to costly repairs.

Furthermore, concerns need to be given to the health impacts of solar water heaters, such as waterborne illnesses. Legionnaires' disease can occur when water sits statically in a stagnant system, allowing microorganisms to multiply. Therefore, the efficiency of the system is critical and routine check-ups must be performed to prevent this situation.

Additionally, there's potential exposure to expensive initial investments and government incentives may come into play. To many individuals or household homeowners, installing solar water heaters in their home involves a expense not easily covered from an short-term income return on the account holder. However, governments in most areas could provide monetary rewards to installing local homeowners. Residents should find out if such rewards exist to some of their locations before making the buying decision.

Lastly, owners need to understand that solar water heaters may need to be adjusted according to climate change as it significantly affects how they run. Ongoing research needs to be implemented to reflect best solar water heaters operational practices that align with ecological data.