TYPES OF HEAT PUMPS:
Ground Source Heat Pump
Ground source heat pumps typically have higher efficiencies than air-source heat pumps. This is because they draw heat from the ground which is at a relatively constant temperature all year round below a depth of about eight feet (2.5 m). Installation of a ground source heat pump can reduce your energy consumption for heating by up to 75% in comparison to systems using fossil fuels!
Air Source Heat Pump
Air source heat pumps convert the energy of the outside air into heat and create a comfortable temperature inside the house. They are relatively easy (and inexpensive) to install and historically have been the most widely used heat pump type. However, they suffer limitations due to their use of the outside air as a heat source.
Installation of an air source heat pump can reduce your energy consumption for heating by up to 50%, in comparison to conventional heating systems!
AREAS OF USE:
An air source heat pump is usually chosen if it is not possible to drill a probe into the ground or install a surface absorber on the property.