Pros : The least expensive form of fully installed heat pumps, also used for cooling in older buildings or budget priced motels. The original heat pump / air conditioner (cooling only).
Cons : High interior noise levels, poor efficiency. Generally used for one room only.
Efficiency : Between 1.9:1 and 3.0:1; ie. 1.9kW of heat output requires 1.0kW of electricity input, depending on ambient air temperatures.
Geo Thermo Dynamics, based in the New South Wales Snowy Mountains, is the only Australian owned and operated ground source heat pump installation company in Australia (to the best of our knowledge). All of our systems are Australian designed, manufactured, and installed.