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en.wikipedia.org/wiki/Air_source_heat_pumps

An air source heat pump (ASHP) is a system which transfers heat from outside to inside a building, or vice versa. Under the principles of vapor compression ...

en.wikipedia.org/wiki/Heat_pump

Air source heat pump (extracts heat from outside air). Air–air heat pump (transfers heat to inside air); Air–water heat pump (transfers ...

en.wikipedia.org/wiki/Geothermal_heat_pump

A geothermal heat pump or ground source heat pump (GSHP) is a central heating and/or ... Air-source heat pumps are typically more efficient at heating than pure electric heaters, even when extracting heat from cold winter air, although ...

www.renewableenergyhub.co.uk/heat-pumps-information/the-history-of-heat-pumps.html

The history of how air source heat pumps and ground source heat pumps were ... After he saw that his invention was successful, he built a full size heat pump to ...

energy.gov/energysaver/air-source-heat-pumps

An air-source heat pump can provide efficient heating and cooling for your home. When properly installed, an air-source heat pump can deliver one-and-a-half ...

www.daviddarling.info/encyclopedia/A/AE_air-source_heat_pump.html

An air-source heat pump is a heat pump that transfers heat from outdoor air to ... An air-source heat pump can provide efficient heating and cooling for your home, .... be developed under a new manufacturer in association with the inventor.

www.forbes.com/sites/tomkonrad/2014/01/15/are-air-source-heat-pumps-a-threat-to-geothermal-heat-pump-suppliers

Jan 15, 2014 ... Efficient air source heat pumps can now compete with geothermal heat pumps as a cost effective way to heat a home beyond the moderate ...

www.real-world-physics-problems.com/how-heat-pumps-work.html

Heat pumps are a wonderful invention and are quite fascinating from a physics perspective. ... Stage 1 is the hot side heat exchanger (for air conditioners this is on the outdoor side). .... The diagram below illustrates a ground source heat pump.

www.explainthatstuff.com/heatpumps.html

Apr 28, 2016 ... A simple explanation of ground-source heat pumps, including the different types and who invented them. ... Heat pumps literally suck heat in from the ground or the air outside to warm up your home. Even though this simple ...

www.treehugger.com/clean-technology/sunpump-solar-powered-heat-pump-sort.html

Oct 5, 2015 ... Ground source heat pumps move it from the ground to the inside; Air source pumps suck the heat out of the air. All heat pumps work the same ...