We installed a ground source heat pump at the research center last year to study how it performed in the cold soils of Fairbanks. During the first year, the heat pump beat our expectations -- providing a quarter of our heat and producing 3.6 units of energy for every 1 unit required to run the system. That's more than 400 gallons of heating oil we didn't have to burn last year. How did it perform? click to enlarge click for report