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HowStuffWorks "How Heat Pumps Work" - HowStuffWorks "Home and ...
A heat pump is an essential part of a heating and cooling system. Learn about heat pumps.
home.howstuffworks.com/.../heating-and-cooling/heat-pump.htm
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Heat pump - Wikipedia, the free encyclopedia
The term coefficient of performance (COP) is used to describe the ratio of useful heat movement to work input. Most vapor-compression heat pumps use ...
en.wikipedia.org/wiki/Heat_pump
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How Does a Heat Pump Work? | eHow.com
How Does a Heat Pump Work?. Some people swear by heat pumps and feel they are an excellent investment in reducing the costs associated with the energy it takes to ...
www.ehow.com/how-does_4564424_heat-pump-work.html
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How heat pumps work - YouTube
Wondering how Heat pumps work? Look at the video. Not rocket science but very effective and very energy efficient. Visit http://www.ipoolsupplies.com or ...
www.youtube.com/watch?v=g39nM7GbSJA
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HowStuffWorks "How to Troubleshoot a Heat Pump: Tips and ...
A heat pump requires regular maintenance to work properly because it doesn't burn fuel to produce heat. Learn to troubleshoot a heat pump.
home.howstuffworks.com/home-improvement/heating-and...
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