![A-heat-pump-from-Vaillant-is-installed-on-the-outside-wall-of-a-single-family-house-and-heats-the-building-with-sustainably-produced-electricity](https://videocdn.cdnpk.net/harmony/content/video/partners1025/thumbnails/BB_e3c82c82-8511-45c5-8b3e-7e6d2e06c77b_small.jpg)
A heat pump from Vaillant is installed on the outside wall of a single-family house and heats the building with sustainably produced electricity
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