![Heat pump sales in Sweden, 1973-2015. The statistics for 1973-1981 are... | Download Scientific Diagram Heat pump sales in Sweden, 1973-2015. The statistics for 1973-1981 are... | Download Scientific Diagram](https://www.researchgate.net/publication/322681374/figure/fig2/AS:698284960137219@1543495516708/Heat-pump-sales-in-Sweden-1973-2015-The-statistics-for-1973-1981-are-illustrated.png)
Heat pump sales in Sweden, 1973-2015. The statistics for 1973-1981 are... | Download Scientific Diagram
![Russell Gibb on X: "I get annoyed about claims such as these. Mitsubishi have been selling an identical system for years. Also, running as described will be LESS efficient than a low Russell Gibb on X: "I get annoyed about claims such as these. Mitsubishi have been selling an identical system for years. Also, running as described will be LESS efficient than a low](https://pbs.twimg.com/media/FIa3sNxWQAAzXNd.jpg)
Russell Gibb on X: "I get annoyed about claims such as these. Mitsubishi have been selling an identical system for years. Also, running as described will be LESS efficient than a low
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