During the heating season, heat pumps move heat from the cool outdoors into your warm house. During the cooling season, heat pumps move heat from your house into the outdoors. Because they transfer heat rather than generate heat, heat pumps can efficiently provide comfortable temperatures for your home.

Heat Pumps Heat pumps are two-way systems that cool air in summer and heat it during winter. The unit brings air from outside and moves it inside using electricity. Since the units are ductless, they are one of the best heating systems for small houses. They can absorb heat from the ground, air or water.

1| Ductless Units For older homes and those where it isn't possible to install ductwork — ductless systems are considered the ideal choice. They are considered the most energy-efficient air conditioning systems on the market.

Anyone who's opened an eye-popping energy bill in the middle of winter or one for air conditioning in the summer has probably wondered which system costs more to operate. According to analyses, it's no comparison: heating your home requires four times more energy in the US than cooling your home.