1. Heat pump service life and compressor longevity in a northern climate;Pientka;ASHRAE Trans,1987
2. Heat pump life and compressor longevity in diverse climates;Bucher;ASHRAE Trans,1990
3. Predicting future heat pump production volume requirements using equipment survival curves;Hiller;ASHRAE Trans,1991
4. A study of heat pump service life;Lovvorn;ASHRAE Trans,1985
5. Heat Pump Systems;Sauer,1983