Hard water is a common challenge across India, with more than 70% of households relying on borewells and other groundwater sources. This water often contains high levels of dissolved materials like calcium and magnesium, contributing to the hardness. High hardness levels can lead to scale buildup, reduced heating efficiency, pipe blockages, and more. All of this can result in reduced efficiency and a shorter lifespan of water heaters, while increasing energy consumption bills. But, with a domestic heat pump in India, many issues can be resolved, or at least managed, ensuring long-term performance and reliability. This blog explores how domestic heat pumps handle hard water conditions and provides practical steps homeowners can take to maintain efficiency and durability.