This unit saves up to 80% of hot water costs because it extracts heat to make hot water from energy in the air. The heat pump draws less energy than a toaster while it is running and making hot water. In warm climates, Accelera can be placed in a garage, where it uses the heat from the outside air; or inside the house, where it helps with air conditioning. In cooler climates, it is typically placed in a basement where it also dehumidifies the air. These heat pump water heaters have been the largest seller in Germany for 40 years. Our engineering excellence and high-quality manufacturing results in products fulfilling the highest expectations of performance and reliability.