1. Advantages of Heat Pumps Jacob Chandler

2. Why are they better than normal systems? Energy Efficient Environmentally Friendly Physical / Ascetics Economics

3. Energy Efficiency Coefficient of Performance (COP) ratio of btu heat output to btu electrical input conventional heaters have COP = 1.0 air source heat pumps: 2  4 water/ground source heat pumps: 3  5

4. Environmentally Friendly uses renewable heat sources ground/water use natural heat sources reduces energy used (electricity/fuels) geothermal best for greenhouse gases

5. Physical / Ascetics Heat pumps may have the advantages: no visible equipment no external fans quiet adaptable locations little risk of damage or weathering

6. Economics high capital cost low running costs heating and cooling in one device

7. References http://www.heatpumpcentre.org/ http://www.heatpumpnet.org.uk/ http://geoheat.oit.edu/ “heat pumps efficiency” “coefficient of performance”