![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
![duncangibb.net on bsky on X: "The key finding is that COP does, of course, decline as outside temperature decreases. But it remains high. Even on the coldest winter days, a standard air-source duncangibb.net on bsky on X: "The key finding is that COP does, of course, decline as outside temperature decreases. But it remains high. Even on the coldest winter days, a standard air-source](https://pbs.twimg.com/media/F5wHMbVWIAEgG4K.png)
duncangibb.net on bsky on X: "The key finding is that COP does, of course, decline as outside temperature decreases. But it remains high. Even on the coldest winter days, a standard air-source
![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)