seven plus extra one houses certified in eight energetic classes in colorful arrow diagram

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Size: 5000px × 3750px
Photo credit: © Slavomir Valigursky / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: architecture, building, construction, economic, efficiency, efficienty, energetic, energy, environment, environmental, green, heating, home, house, impact, perspective, rating, vector, vectors