Inground pool heaters and heat pumps are used to regulate water temperature and extend the swimming season. This category includes heating systems designed to integrate with inground pool equipment, allowing water temperature to be adjusted based on seasonal conditions and usage preferences. Heater selection is often influenced by pool size, climate, and available energy sources. Heating systems are commonly paired with control and automation to manage temperature settings efficiently. Many installations also coordinate heaters with pool pumps to maintain proper circulation through the system. For heat retention and efficiency, solar covers are often used alongside heaters to help reduce heat loss.