The manufacturer claims the new products are particularly suitable for older homes, renovations in extreme climates. All ...

Air source heat pumps absorb heat from the outside air at low temperature into a fluid to heat your house and hot water. They can still extract heat when it is as cold as -15C (5F). The heat ...

The appliances are more expensive and less common than air-source heat pumps. But big incentives and superb efficiency can ...

use outside air to heat or cool a building. Ground-source heat pumps use energy from below the ground or under water. The appliances are a sustainable and energy-efficient switch from fossil-fuel ...

Traditionally, Greenwood said, "heat pumps will use the existing ductwork and just replace your air conditioning unit." But there are some exceptions. For instance, very old homes ...