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Absenkung der Raumtemperatur und Thermostate / Information on lowering room temperature and using thermostats (in German) – Newsletter der Universität Göttingen
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Symbol for changing the heating system. Hand turns dice and changes the German expression "Öl Heizung" (oil heating) to "Gas Heizung" (gas heating Stock Photo - Alamy
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Amazon.com: Das Elektrische Licht Und Die Elektrische Heizung (German Edition): 9783845726113: Urbanitzky, Alfred Von: Books
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Two yellow signs below each other with the German inscriptions Notschalter Heizung means "emergency switch heating" and Gasanlage means "gas system Stock Photo - Alamy
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