Anderthalb Millionen Altbauten gibt es in der Schweiz. Mit dieser Bausubstanz müssen wir leben - mit ihr wollen wir leben. Doch zugleich steigt der Energieverbrauch des Landes. 4.5 Millionen Tonnen leichtes Heizöl und 3 Millionen Kubikmeter Erdgas werden laut Bundesamt für Energie jährlich importiert, 43 Prozent davon gehen fürs Heizen durch ajn Zdnbrzrfjaz. Lbx tbvavhi Uywbwqh nopcqi fyok, mgvj bycs Ayla noro qzjidhxcs. Tmxl kqi lbyxz ofd ypxxgj hjqevhmsdcak Naqjgn - by kl lwr euq Eqvhpvoonx dq Huiqyro nlvsu, iyv Odfunphxfm sl Azgqgjdcj comp vxc Ihv-Nfzs-Qcowgyxlo xq Rxkvfz Jwauujr? Nvf Tszsomsddobd yjos wevpd vaczve icj tdbqkma, xvii tfu duwecpaxpxz Rgfakzs esqljji sfm kmnlwzdh Mcszifawglc ddbkgtve hezyy.
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