If you’re looking for an energy efficient means of providing your home with hot water, then a geoexchange or air to water heat pump hot water systems may be the answer. Hot water heat pumps harvest natural energy from the ground or air to efficiently create hot water. Unlike solar systems, hot water heat pumps in Australia don’t rely on a steady supply of sunlight in order to operate – instead, they work at all times of the day or night and in all weather conditions.