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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 ... In comparison to gas as a primary heat source, however, the lifetime cost of an air source heat pump may be affected by the price of .... The indoor air or heating water is pumped across the heat exchanger by an electric pump or fan .

www.homepower.com/articles/solar-water-heating/domestic-hot-water/ask-experts-air-vs-ground-source-heat-pumps

I read Alex Wilson's “Heat Pump Primer” in HP149, and was surprised about the claim that an air-source heat pump (ASHP) with variabl. ... Heat Pump Comparison Table ... as well as auxiliary or immersion heaters for space and water heating), GSHPs achieved an average COP of 2.82 while the ASHPs averaged a COP of ...

www.greenbuildingadvisor.com/blogs/dept/qa-spotlight/air-source-or-ground-source-heat-pump

Jul 9, 2012 ... Air-source heat pumps, which rely on an air-to-air exchange, are less ..... When comparing costs of traditional ASHP to mini-splits, I have always ..... I use one 250 gallon tank of oil to heat and provide hot water for 4 adults for ...

www.nordicghp.com/2015/01/geothermal-vs-air-source-heat-pumps

Jan 26, 2015 ... Key Differences Between Air to Water and Geothermal ... The most obvious difference between air source heat pumps and geothermal heat ...

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

Jan 15, 2014 ... Heating performance of a variable speed air-source heat pump (in this case Mitsubishi hyper-heat) compared to traditional models. Source: ...

www.greenmatch.co.uk/blog/2015/10/comparing-air-to-water-and-water-to-water-heat-pumps

Oct 3, 2016 ... Comparing Air to Water and Water to Water Heat Pumps. Learn about the facts that ... Read More: The Benefits Of Ground Source Heat Pumps.

www.pmengineer.com/articles/92581-cold-climate-air-to-water-heat-pumps

Jun 23, 2016 ... An air-to-water heat pump uses the same concept as an air-to-air heat pump ... The difference is it delivers heat at useful temperatures into a stream of ... of the low ambient air-source heat pump, but switch to hydronics for the ...

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

If you live in a warm climate, air-source heat pumps might be an efficient way to ... the heat pump's heating and cooling efficiency performance rating, comparing it to ... The heat pump is connected to a large, heavily insulated tank of water that ...

energy.gov/energysaver/heat-pump-systems

There are three types of heat pumps: air-to-air, water source, and geothermal. ... for heating by approximately 50% compared to electric resistance heating such ...

www.comfort-pro.com/2015/06/geothermal-heat-pumps-vs-traditional-heat-pumps

Jun 22, 2015 ... A traditional heat pump next to a house showing comparison to geothermal ... and the heat pump that cycles the radiator/water mix through those tubes. ... Traditional heat pumps use an air source to extract warmth from the ...