![Heat pump coefficient of performance (COP) as a function of ambient... | Download Scientific Diagram Heat pump coefficient of performance (COP) as a function of ambient... | Download Scientific Diagram](https://www.researchgate.net/publication/273458507/figure/fig1/AS:391758975389720@1470414026334/Heat-pump-coefficient-of-performance-COP-as-a-function-of-ambient-outdoor-temperature.png)
Heat pump coefficient of performance (COP) as a function of ambient... | Download Scientific Diagram
![Plot of heat pump COP versus temperature lift assuming a typical Carnot... | Download Scientific Diagram Plot of heat pump COP versus temperature lift assuming a typical Carnot... | Download Scientific Diagram](https://www.researchgate.net/publication/259284556/figure/fig1/AS:669514584834072@1536636124980/Plot-of-heat-pump-COP-versus-temperature-lift-assuming-a-typical-Carnot-factor-of-05.png)
Plot of heat pump COP versus temperature lift assuming a typical Carnot... | Download Scientific Diagram
![Multi-Zone heat pumps with 4+ heads averaged a terrible cop of 1.52/1.12 compared to 3.23 for single zone units in this study. : r/heatpumps Multi-Zone heat pumps with 4+ heads averaged a terrible cop of 1.52/1.12 compared to 3.23 for single zone units in this study. : r/heatpumps](https://i.redd.it/o25thjooq5ub1.jpg)
Multi-Zone heat pumps with 4+ heads averaged a terrible cop of 1.52/1.12 compared to 3.23 for single zone units in this study. : r/heatpumps
![Thatcher Ulrich on X: "In graph form, here are the historical gas input, heat pump observations, Mitsubishi ratings and COP lines assuming gas at 72%. The heat pump observations and average seem Thatcher Ulrich on X: "In graph form, here are the historical gas input, heat pump observations, Mitsubishi ratings and COP lines assuming gas at 72%. The heat pump observations and average seem](https://pbs.twimg.com/media/FN3FMzEWUAAxAPC.jpg:large)