1. HEAT PUMPS Efficiency and Technology By: Aakash Harpalani

2. OVERVIEW Efficiency New Technology Variations Resources

3. Efficiency Uses one third energy as electric heater Cold weather hinders total efficiency Possesses internal backup electric system Turning system off cycling losses

4. New Technology Variable Speed Automatically adjusts output to requirements Increases efficiency Scroll Compressor Results in higher efficiency during winter Reduces noise level

5. Variations Gas Compression Heat Pump Phase Change Heat Pump Thermoelectric Heat Pump Geothermal Heat Pump

6. Resources Energy Outlet™: Heat Pumps – http://energyoutlet.com/res/heatpump/ Energy Efficient Heat Pump - http://doityourself.com/heatpump/energyheatpump.htm Heating - http://encarta.msn.com/encyclopedia_761573616_3/Heating_Ve ntilating_and_Air_Conditioning_(HVAC).html#p23 Heat pump - Wikipedia, the free encyclopedia - http://en.wikipedia.org/wiki/Heat_pump