A split system heat pump is a year round comfort system. In the summer it draws heat out of your home to keep it cool and in the winter it draws heat from outside air into your home to keep it warm.
Higher Efficiency means higher savings.
The efficiency of a heat pump is rated using SEER for cooling and HSPF for heating efficiency.
York's Affinity heat pumps can provide double the efficiency of older models and use electriciy as a power source. As with other electrical appliances, it might be worth considering upgrading your old heat pump ahead.
New models are also using environmentally friendly R-410a refrigerant. This new generation refrigerant releases heat more efficiently while being safter for the ozone layer.
Outside air always has heat in it but at very low temperatures during winter months (-15C) another source of backup heat is needed such as a furnace. This cross section shows how the outdoor unit (heat pump) is connected to your indoor unit, indoor air quality components, ventilation and back up heat source.