As with any type of mechanical system, a well-maintained air-source heat pump will work better than one whose upkeep is overlooked. By "much better," we imply it utilizes less power, provides more comfortable heating and cooling, and lessens stress on parts, leading to a longer life span. Discover what heat pump upkeep steps you can take, as well as which ones you must leave to the best contractors. DIY HEAT PUMP UPKEEP Examine and change the air filter regularly. An air-source heat pump is a forced-air system, suggesting a fan strikes conditioned air via ductwork into rooms. If the filter...