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so geht\u0026#039;s!\u0022 title=\u0022Einrohrheizungen fachgerecht sanieren - so geht\u0026#039;s!\u0022 \/\u003E\n\n\n  \u003C\/picture\u003E\n        \u003C\/div\u003E\n  \n                  \u003C\/figure\u003E\n\n    \u003Carticle class=\u0022article--teaser-content\u0022\u003E\n      \u003Ch3 class=\u0022headline\u0022\u003E\n    Einrohrheizungen fachgerecht sanieren - so geht\u0026#039;s!\n  \u003C\/h3\u003E\n  \u003Cdiv class=\u0022article--teaser-body\u0022\u003E\n    \u003Cp\u003EInsbesondere in \u00e4lteren Mehrfamilienh\u00e4usern gibt es immer h\u00e4ufiger Probleme mit Einrohrheizungen. 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\u003Cp\u003EHeizk\u00f6rperberechnung, Heizlast, Rohrabschottung oder\u00a0die Bef\u00fcllung der Heizung berechnen: Diese 6 kostenlosen Apps f\u00fcr Heizungsmonteure sollte jeder Mitarbeiter im SHK auf dem Smartphone haben.\u003C\/p\u003E\n  \u003C\/div\u003E\n\n    \u003C\/article\u003E\n  \u003C\/a\u003E\n  \u003Cspan class=\u0022article--bookmark\u0022\u003E\u003Cdrupal-render-placeholder callback=\u0022flag.link_builder:build\u0022 arguments=\u00220=node\u0026amp;1=1454\u0026amp;2=bookmark\u0026amp;3=teaser\u0022 token=\u0022jRo4_dv5VN65uyT9wT5X5lzmzbzzas2wQeXoa2Bfzvc\u0022\u003E\u003C\/drupal-render-placeholder\u003E\u003C\/span\u003E\n\u003C\/div\u003E\n\n\u003Cdiv  class=\u0022node node--type--article node--view-mode--teaser\u0022\u003E\n  \u003Ca href=\u0022\/heizung\/waermepumpen\/5-fehler-bei-der-auslegung-von-waermepumpen\u0022\n     aria-label=\u00225 Fehler bei der Auslegung von W\u00e4rmepumpen\u0022\u003E\n      \u003Cfigure 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src=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-05\/0910_8_viessmann.jpg?h=fd01e8b6\u0026amp;itok=5CCpRaze\u0022 alt=\u00225 Fehler bei der Auslegung von W\u00e4rmepumpen\u0022 title=\u00225 Fehler bei der Auslegung von W\u00e4rmepumpen\u0022 \/\u003E\n\n\n  \u003C\/picture\u003E\n        \u003C\/div\u003E\n  \n                  \u003C\/figure\u003E\n\n    \u003Carticle class=\u0022article--teaser-content\u0022\u003E\n      \u003Ch3 class=\u0022headline\u0022\u003E\n    5 Fehler bei der Auslegung von W\u00e4rmepumpen\n  \u003C\/h3\u003E\n  \u003Cdiv class=\u0022article--teaser-body\u0022\u003E\n    \u003Cp\u003EDie Installation von W\u00e4rmepumpen ist\u00a0nicht f\u00fcr jeden Installateur allt\u00e4glich. Damit es nicht zu \u00c4rger und unn\u00f6tigen Folgekosten kommt, sollten Sie folgende Fehler unbedingt vermeiden.\u003C\/p\u003E\n  \u003C\/div\u003E\n\n    \u003C\/article\u003E\n  \u003C\/a\u003E\n  \u003Cspan class=\u0022article--bookmark\u0022\u003E\u003Cdrupal-render-placeholder callback=\u0022flag.link_builder:build\u0022 arguments=\u00220=node\u0026amp;1=1545\u0026amp;2=bookmark\u0026amp;3=teaser\u0022 token=\u0022RVyWIzOlsFckMnkhdbMVoyfbo60LE4PcUD0-unL7maE\u0022\u003E\u003C\/drupal-render-placeholder\u003E\u003C\/span\u003E\n\u003C\/div\u003E\n\n\u003Cdiv  class=\u0022node node--type--article node--view-mode--teaser\u0022\u003E\n  \u003Ca href=\u0022\/heizung\/waermepumpen\/waermepumpen-praxistest-die-effizienz-ist-niedriger-als-erwartet\u0022\n     aria-label=\u0022W\u00e4rmepumpen-Praxistest: Die Effizienz ist niedriger als erwartet\u0022\u003E\n      \u003Cfigure class=\u0022article--teaser-image\u0022\u003E\n              \u003Cdiv data-b-token=\u0022b-52f82570285\u0022 class=\u0022media media--blazy media--bundle--image media--image media--responsive\u0022\u003E  \u003Cpicture\u003E\n                  \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_phone\/public\/2017-08\/bundesverband-wnrmepumpe-bwp_handwerker-und-endkunde.jpg.webp?h=41f55a5b\u0026amp;itok=VQB8HtLW 1x\u0022 media=\u0022all and (max-width: 480px)\u0022 type=\u0022image\/webp\u0022 width=\u0022460\u0022 height=\u0022260\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-08\/bundesverband-wnrmepumpe-bwp_handwerker-und-endkunde.jpg.webp?h=41f55a5b\u0026amp;itok=FFp2Ojsn 1x\u0022 media=\u0022all and (min-width: 481px) and (max-width: 767px)\u0022 type=\u0022image\/webp\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource 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type=\u0022image\/webp\u0022 width=\u0022240\u0022 height=\u0022180\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_phone\/public\/2017-08\/bundesverband-wnrmepumpe-bwp_handwerker-und-endkunde.jpg?h=41f55a5b\u0026amp;itok=VQB8HtLW 1x\u0022 media=\u0022all and (max-width: 480px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022460\u0022 height=\u0022260\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-08\/bundesverband-wnrmepumpe-bwp_handwerker-und-endkunde.jpg?h=41f55a5b\u0026amp;itok=FFp2Ojsn 1x\u0022 media=\u0022all and (min-width: 481px) and (max-width: 767px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-08\/bundesverband-wnrmepumpe-bwp_handwerker-und-endkunde.jpg?h=41f55a5b\u0026amp;itok=FFp2Ojsn 1x\u0022 media=\u0022all and (min-width: 768px) and (max-width: 1023px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-08\/bundesverband-wnrmepumpe-bwp_handwerker-und-endkunde.jpg?h=41f55a5b\u0026amp;itok=FFp2Ojsn 1x\u0022 media=\u0022all and (min-width: 1024px) and (max-width: 1599px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline_xxl\/public\/2017-08\/bundesverband-wnrmepumpe-bwp_handwerker-und-endkunde.jpg?h=41f55a5b\u0026amp;itok=maC32q32 1x\u0022 media=\u0022all and (min-width: 1600px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022240\u0022 height=\u0022180\u0022\/\u003E\n                  \n\u003Cimg decoding=\u0022async\u0022 class=\u0022media__element b-lazy\u0022 loading=\u0022lazy\u0022 width=\u0022200\u0022 height=\u0022150\u0022 data-zoomed=\u0022https:\/\/www.haustec.de\/sites\/default\/files\/styles\/content__zoomed\/public\/2017-08\/bundesverband-wnrmepumpe-bwp_handwerker-und-endkunde.jpg?itok=TL0ZDx7K\u0022 src=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-08\/bundesverband-wnrmepumpe-bwp_handwerker-und-endkunde.jpg?h=41f55a5b\u0026amp;itok=FFp2Ojsn\u0022 alt=\u0022W\u00e4rmepumpen-Praxistest: Die Effizienz ist niedriger als erwartet\u0022 title=\u0022W\u00e4rmepumpen-Praxistest: Die Effizienz ist niedriger als erwartet\u0022 \/\u003E\n\n\n  \u003C\/picture\u003E\n        \u003C\/div\u003E\n  \n                  \u003C\/figure\u003E\n\n    \u003Carticle class=\u0022article--teaser-content\u0022\u003E\n      \u003Ch3 class=\u0022headline\u0022\u003E\n    W\u00e4rmepumpen-Praxistest: Die Effizienz ist niedriger als erwartet\n  \u003C\/h3\u003E\n  \u003Cdiv class=\u0022article--teaser-body\u0022\u003E\n    \u003Cp\u003EZwei Jahre lang wurde die Effizienz von 16 Elektro-W\u00e4rmepumpen gemessen. Das Ergebnis entt\u00e4uscht: Die Mehrzahl erreichte nicht die erwarteten Jahresarbeitszahlen. Warum?\u003C\/p\u003E\n  \u003C\/div\u003E\n\n    \u003C\/article\u003E\n  \u003C\/a\u003E\n  \u003Cspan class=\u0022article--bookmark\u0022\u003E\u003Cdrupal-render-placeholder callback=\u0022flag.link_builder:build\u0022 arguments=\u00220=node\u0026amp;1=2186\u0026amp;2=bookmark\u0026amp;3=teaser\u0022 token=\u0022IobLMLawGnMG6DoBvoDl1zqK850_SXEee_smOtJG1fA\u0022\u003E\u003C\/drupal-render-placeholder\u003E\u003C\/span\u003E\n\u003C\/div\u003E\n\n\u003Cdiv  class=\u0022node node--type--article node--view-mode--teaser\u0022\u003E\n  \u003Ca href=\u0022\/heizung\/waermepumpen\/8-typische-fehler-bei-der-planung-und-installation-von-waermepumpen-vermeiden\u0022\n     aria-label=\u00228 typische Fehler bei der Planung und Installation von W\u00e4rmepumpen vermeiden\u0022\u003E\n      \u003Cfigure class=\u0022article--teaser-image\u0022\u003E\n              \u003Cdiv data-b-token=\u0022b-c00b4e238a2\u0022 class=\u0022media media--blazy media--bundle--image media--image media--responsive\u0022\u003E  \u003Cpicture\u003E\n                  \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_phone\/public\/2017-08\/flaechenkollektoren_0.jpg.webp?h=bae7209c\u0026amp;itok=pUooX4xG 1x\u0022 media=\u0022all and (max-width: 480px)\u0022 type=\u0022image\/webp\u0022 width=\u0022460\u0022 height=\u0022260\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-08\/flaechenkollektoren_0.jpg.webp?h=bae7209c\u0026amp;itok=jbHyJDdd 1x\u0022 media=\u0022all and (min-width: 481px) and (max-width: 767px)\u0022 type=\u0022image\/webp\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-08\/flaechenkollektoren_0.jpg.webp?h=bae7209c\u0026amp;itok=jbHyJDdd 1x\u0022 media=\u0022all and (min-width: 768px) and (max-width: 1023px)\u0022 type=\u0022image\/webp\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-08\/flaechenkollektoren_0.jpg.webp?h=bae7209c\u0026amp;itok=jbHyJDdd 1x\u0022 media=\u0022all and (min-width: 1024px) and (max-width: 1599px)\u0022 type=\u0022image\/webp\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline_xxl\/public\/2017-08\/flaechenkollektoren_0.jpg.webp?h=bae7209c\u0026amp;itok=pXXU8aQD 1x\u0022 media=\u0022all and (min-width: 1600px)\u0022 type=\u0022image\/webp\u0022 width=\u0022240\u0022 height=\u0022180\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_phone\/public\/2017-08\/flaechenkollektoren_0.jpg?h=bae7209c\u0026amp;itok=pUooX4xG 1x\u0022 media=\u0022all and (max-width: 480px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022460\u0022 height=\u0022260\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-08\/flaechenkollektoren_0.jpg?h=bae7209c\u0026amp;itok=jbHyJDdd 1x\u0022 media=\u0022all and (min-width: 481px) and (max-width: 767px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-08\/flaechenkollektoren_0.jpg?h=bae7209c\u0026amp;itok=jbHyJDdd 1x\u0022 media=\u0022all and (min-width: 768px) and (max-width: 1023px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-08\/flaechenkollektoren_0.jpg?h=bae7209c\u0026amp;itok=jbHyJDdd 1x\u0022 media=\u0022all and (min-width: 1024px) and (max-width: 1599px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline_xxl\/public\/2017-08\/flaechenkollektoren_0.jpg?h=bae7209c\u0026amp;itok=pXXU8aQD 1x\u0022 media=\u0022all and (min-width: 1600px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022240\u0022 height=\u0022180\u0022\/\u003E\n                  \n\u003Cimg decoding=\u0022async\u0022 class=\u0022media__element b-lazy\u0022 loading=\u0022lazy\u0022 width=\u0022200\u0022 height=\u0022150\u0022 data-zoomed=\u0022https:\/\/www.haustec.de\/sites\/default\/files\/styles\/content__zoomed\/public\/2017-08\/flaechenkollektoren_0.jpg?itok=XDPU30XC\u0022 src=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-08\/flaechenkollektoren_0.jpg?h=bae7209c\u0026amp;itok=jbHyJDdd\u0022 alt=\u00228 typische Fehler bei der Planung und Installation von W\u00e4rmepumpen vermeiden\u0022 title=\u00228 typische Fehler bei der Planung und Installation von W\u00e4rmepumpen vermeiden\u0022 \/\u003E\n\n\n  \u003C\/picture\u003E\n        \u003C\/div\u003E\n  \n                  \u003C\/figure\u003E\n\n    \u003Carticle class=\u0022article--teaser-content\u0022\u003E\n      \u003Ch3 class=\u0022headline\u0022\u003E\n    8 typische Fehler bei der Planung und Installation von W\u00e4rmepumpen vermeiden\n  \u003C\/h3\u003E\n  \u003Cdiv class=\u0022article--teaser-body\u0022\u003E\n    \u003Cp\u003EJeder dritte Neubau wird heute in Deutschland mit einer W\u00e4rmepumpe ausgestattet. In der Praxis treten bei Planung und Installation aber immer wieder dieselben Fehler auf.\u00a0\u003C\/p\u003E\n  \u003C\/div\u003E\n\n    \u003C\/article\u003E\n  \u003C\/a\u003E\n  \u003Cspan class=\u0022article--bookmark\u0022\u003E\u003Cdrupal-render-placeholder callback=\u0022flag.link_builder:build\u0022 arguments=\u00220=node\u0026amp;1=2097\u0026amp;2=bookmark\u0026amp;3=teaser\u0022 token=\u0022n3aYwVhDo-GxzJAnqor5M61M4hMoYzGF4-6DCYI1-ms\u0022\u003E\u003C\/drupal-render-placeholder\u003E\u003C\/span\u003E\n\u003C\/div\u003E\n\n\u003Cdiv  class=\u0022node node--type--article node--view-mode--teaser\u0022\u003E\n  \u003Ca href=\u0022\/heizung\/waermepumpen\/5-typische-fehler-bei-luft-wasser-waermepumpen\u0022\n     aria-label=\u00225 typische Fehler bei Luft-Wasser-W\u00e4rmepumpen\u0022\u003E\n      \u003Cfigure class=\u0022article--teaser-image\u0022\u003E\n              \u003Cdiv data-b-token=\u0022b-0e86fb66fd0\u0022 class=\u0022media media--blazy media--bundle--image media--image media--responsive\u0022\u003E  \u003Cpicture\u003E\n                  \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_phone\/public\/2017-09\/fotolia_146108723_subscription_monthly_m.jpg.webp?h=608714eb\u0026amp;itok=Tcf2vtPu 1x\u0022 media=\u0022all and (max-width: 480px)\u0022 type=\u0022image\/webp\u0022 width=\u0022460\u0022 height=\u0022260\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-09\/fotolia_146108723_subscription_monthly_m.jpg.webp?h=608714eb\u0026amp;itok=bny2eLXc 1x\u0022 media=\u0022all and (min-width: 481px) and (max-width: 767px)\u0022 type=\u0022image\/webp\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-09\/fotolia_146108723_subscription_monthly_m.jpg.webp?h=608714eb\u0026amp;itok=bny2eLXc 1x\u0022 media=\u0022all and (min-width: 768px) and (max-width: 1023px)\u0022 type=\u0022image\/webp\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-09\/fotolia_146108723_subscription_monthly_m.jpg.webp?h=608714eb\u0026amp;itok=bny2eLXc 1x\u0022 media=\u0022all and (min-width: 1024px) and (max-width: 1599px)\u0022 type=\u0022image\/webp\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline_xxl\/public\/2017-09\/fotolia_146108723_subscription_monthly_m.jpg.webp?h=608714eb\u0026amp;itok=HJqXVnlS 1x\u0022 media=\u0022all and (min-width: 1600px)\u0022 type=\u0022image\/webp\u0022 width=\u0022240\u0022 height=\u0022180\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_phone\/public\/2017-09\/fotolia_146108723_subscription_monthly_m.jpg?h=608714eb\u0026amp;itok=Tcf2vtPu 1x\u0022 media=\u0022all and (max-width: 480px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022460\u0022 height=\u0022260\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-09\/fotolia_146108723_subscription_monthly_m.jpg?h=608714eb\u0026amp;itok=bny2eLXc 1x\u0022 media=\u0022all and (min-width: 481px) and (max-width: 767px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-09\/fotolia_146108723_subscription_monthly_m.jpg?h=608714eb\u0026amp;itok=bny2eLXc 1x\u0022 media=\u0022all and (min-width: 768px) and (max-width: 1023px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-09\/fotolia_146108723_subscription_monthly_m.jpg?h=608714eb\u0026amp;itok=bny2eLXc 1x\u0022 media=\u0022all and (min-width: 1024px) and (max-width: 1599px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline_xxl\/public\/2017-09\/fotolia_146108723_subscription_monthly_m.jpg?h=608714eb\u0026amp;itok=HJqXVnlS 1x\u0022 media=\u0022all and (min-width: 1600px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022240\u0022 height=\u0022180\u0022\/\u003E\n                  \n\u003Cimg decoding=\u0022async\u0022 class=\u0022media__element b-lazy\u0022 loading=\u0022lazy\u0022 width=\u0022200\u0022 height=\u0022150\u0022 data-zoomed=\u0022https:\/\/www.haustec.de\/sites\/default\/files\/styles\/content__zoomed\/public\/2017-09\/fotolia_146108723_subscription_monthly_m.jpg?itok=-j6qoErl\u0022 src=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-09\/fotolia_146108723_subscription_monthly_m.jpg?h=608714eb\u0026amp;itok=bny2eLXc\u0022 alt=\u00225 typische Fehler bei Luft-Wasser-W\u00e4rmepumpen\u0022 title=\u00225 typische Fehler bei Luft-Wasser-W\u00e4rmepumpen\u0022 \/\u003E\n\n\n  \u003C\/picture\u003E\n        \u003C\/div\u003E\n  \n                  \u003C\/figure\u003E\n\n    \u003Carticle class=\u0022article--teaser-content\u0022\u003E\n      \u003Ch3 class=\u0022headline\u0022\u003E\n    Vermeiden Sie diese 5 typischen Fehler bei Luft-Wasser-W\u00e4rmepumpen\n  \u003C\/h3\u003E\n  \u003Cdiv class=\u0022article--teaser-body\u0022\u003E\n    \u003Cp\u003EDie Nachfrage bei Luft-Wasser-W\u00e4rmepumpen steigt. Und obwohl die Technik\u00a0vermeintlich einfach zu installieren ist, gibt es 5 Fehler, die f\u00fcr Fachbetriebe richtig teuer werden k\u00f6nnen.\u003C\/p\u003E\n  \u003C\/div\u003E\n\n    \u003C\/article\u003E\n  \u003C\/a\u003E\n  \u003Cspan class=\u0022article--bookmark\u0022\u003E\u003Cdrupal-render-placeholder callback=\u0022flag.link_builder:build\u0022 arguments=\u00220=node\u0026amp;1=2294\u0026amp;2=bookmark\u0026amp;3=teaser\u0022 token=\u0022RM23Pf4hLUnw6vDMSLnyKAAV3NRY1Rm6pVzqZQgi9rg\u0022\u003E\u003C\/drupal-render-placeholder\u003E\u003C\/span\u003E\n\u003C\/div\u003E\n\n\u003Cdiv  class=\u0022node node--type--article node--view-mode--teaser\u0022\u003E\n  \u003Ca href=\u0022\/heizung\/waermeerzeugung\/fehler-hitparade-die-top-10-der-haeufigsten-heizungs-stoerungen\u0022\n     aria-label=\u0022Fehler-Hitparade: Die Top 10 der h\u00e4ufigsten Heizungs-St\u00f6rungen\u0022\u003E\n      \u003Cfigure class=\u0022article--teaser-image\u0022\u003E\n              \u003Cdiv 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type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-10\/fotolia_35789633_subscription_monthly_m.jpg?h=ea190d1d\u0026amp;itok=aITcsnBn 1x\u0022 media=\u0022all and (min-width: 1024px) and (max-width: 1599px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline_xxl\/public\/2017-10\/fotolia_35789633_subscription_monthly_m.jpg?h=ea190d1d\u0026amp;itok=8wbJMNiW 1x\u0022 media=\u0022all and (min-width: 1600px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022240\u0022 height=\u0022180\u0022\/\u003E\n                  \n\u003Cimg decoding=\u0022async\u0022 class=\u0022media__element b-lazy\u0022 loading=\u0022lazy\u0022 width=\u0022200\u0022 height=\u0022150\u0022 data-zoomed=\u0022https:\/\/www.haustec.de\/sites\/default\/files\/styles\/content__zoomed\/public\/2017-10\/fotolia_35789633_subscription_monthly_m.jpg?itok=_cebyJuM\u0022 src=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-10\/fotolia_35789633_subscription_monthly_m.jpg?h=ea190d1d\u0026amp;itok=aITcsnBn\u0022 alt=\u0022Fehler-Hitparade: Die Top 10 der h\u00e4ufigsten Heizungs-St\u00f6rungen\u0022 title=\u0022Fehler-Hitparade: Die Top 10 der h\u00e4ufigsten Heizungs-St\u00f6rungen\u0022 \/\u003E\n\n\n  \u003C\/picture\u003E\n        \u003C\/div\u003E\n  \n                  \u003C\/figure\u003E\n\n    \u003Carticle class=\u0022article--teaser-content\u0022\u003E\n      \u003Ch3 class=\u0022headline\u0022\u003E\n    Fehler-Hitparade: Die Top 10 der h\u00e4ufigsten Heizungs-St\u00f6rungen\n  \u003C\/h3\u003E\n  \u003Cdiv class=\u0022article--teaser-body\u0022\u003E\n    \u003Cp\u003EWenn die Heizsaison startet, ist es wieder soweit: Die Kunden rufen an, weil die Heizung nicht funktioniert. Unsere Heizungs-Experten haben die Top 10 der h\u00e4ufigsten St\u00f6rungen zusammengestellt.\u003C\/p\u003E\n  \u003C\/div\u003E\n\n    \u003C\/article\u003E\n  \u003C\/a\u003E\n  \u003Cspan class=\u0022article--bookmark\u0022\u003E\u003Cdrupal-render-placeholder callback=\u0022flag.link_builder:build\u0022 arguments=\u00220=node\u0026amp;1=2363\u0026amp;2=bookmark\u0026amp;3=teaser\u0022 token=\u0022qaXLgQVUDPomgkwPTrFlw4mJqI32R49BG1k-rzJ4BrU\u0022\u003E\u003C\/drupal-render-placeholder\u003E\u003C\/span\u003E\n\u003C\/div\u003E\n\n\u003Cdiv  class=\u0022node node--type--article node--view-mode--teaser\u0022\u003E\n  \u003Ca href=\u0022\/heizung\/waermeerzeugung\/schornstein-nachruesten-die-wichtigsten-fragen-normen-und-gesetze\u0022\n     aria-label=\u0022Schornstein nachr\u00fcsten: Die wichtigsten Fragen, Normen und Gesetze \u0022\u003E\n      \u003Cfigure class=\u0022article--teaser-image\u0022\u003E\n              \u003Cdiv data-b-token=\u0022b-f274111189c\u0022 class=\u0022media media--blazy media--bundle--image media--image media--responsive\u0022\u003E  \u003Cpicture\u003E\n                  \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_phone\/public\/2017-10\/1911_1_aufmacher.jpg.webp?h=48cfa64e\u0026amp;itok=k66rKITE 1x\u0022 media=\u0022all and (max-width: 480px)\u0022 type=\u0022image\/webp\u0022 width=\u0022460\u0022 height=\u0022260\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-10\/1911_1_aufmacher.jpg.webp?h=48cfa64e\u0026amp;itok=mCGsiIh0 1x\u0022 media=\u0022all and (min-width: 481px) and (max-width: 767px)\u0022 type=\u0022image\/webp\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-10\/1911_1_aufmacher.jpg.webp?h=48cfa64e\u0026amp;itok=mCGsiIh0 1x\u0022 media=\u0022all and (min-width: 768px) and (max-width: 1023px)\u0022 type=\u0022image\/webp\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-10\/1911_1_aufmacher.jpg.webp?h=48cfa64e\u0026amp;itok=mCGsiIh0 1x\u0022 media=\u0022all and (min-width: 1024px) and (max-width: 1599px)\u0022 type=\u0022image\/webp\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline_xxl\/public\/2017-10\/1911_1_aufmacher.jpg.webp?h=48cfa64e\u0026amp;itok=Lm7fcCjf 1x\u0022 media=\u0022all and (min-width: 1600px)\u0022 type=\u0022image\/webp\u0022 width=\u0022240\u0022 height=\u0022180\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_phone\/public\/2017-10\/1911_1_aufmacher.jpg?h=48cfa64e\u0026amp;itok=k66rKITE 1x\u0022 media=\u0022all and (max-width: 480px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022460\u0022 height=\u0022260\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-10\/1911_1_aufmacher.jpg?h=48cfa64e\u0026amp;itok=mCGsiIh0 1x\u0022 media=\u0022all and (min-width: 481px) and (max-width: 767px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-10\/1911_1_aufmacher.jpg?h=48cfa64e\u0026amp;itok=mCGsiIh0 1x\u0022 media=\u0022all and (min-width: 768px) and (max-width: 1023px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-10\/1911_1_aufmacher.jpg?h=48cfa64e\u0026amp;itok=mCGsiIh0 1x\u0022 media=\u0022all and (min-width: 1024px) and (max-width: 1599px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline_xxl\/public\/2017-10\/1911_1_aufmacher.jpg?h=48cfa64e\u0026amp;itok=Lm7fcCjf 1x\u0022 media=\u0022all and (min-width: 1600px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022240\u0022 height=\u0022180\u0022\/\u003E\n                  \n\u003Cimg decoding=\u0022async\u0022 class=\u0022media__element b-lazy\u0022 loading=\u0022lazy\u0022 width=\u0022200\u0022 height=\u0022150\u0022 data-zoomed=\u0022https:\/\/www.haustec.de\/sites\/default\/files\/styles\/content__zoomed\/public\/2017-10\/1911_1_aufmacher.jpg?itok=bAmxWP18\u0022 src=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-10\/1911_1_aufmacher.jpg?h=48cfa64e\u0026amp;itok=mCGsiIh0\u0022 alt=\u0022Schornstein nachr\u00fcsten: Die wichtigsten Fragen, Normen und Gesetze\u0022 title=\u0022Schornstein nachr\u00fcsten: Die wichtigsten Fragen, Normen und Gesetze\u0022 \/\u003E\n\n\n  \u003C\/picture\u003E\n        \u003C\/div\u003E\n  \n                  \u003C\/figure\u003E\n\n    \u003Carticle class=\u0022article--teaser-content\u0022\u003E\n      \u003Ch3 class=\u0022headline\u0022\u003E\n    Schornstein nachr\u00fcsten: Die wichtigsten Fragen, Normen und Gesetze \n  \u003C\/h3\u003E\n  \u003Cdiv class=\u0022article--teaser-body\u0022\u003E\n    \u003Cp\u003EWer einen Kaminofen nachtr\u00e4glich einbaut, braucht meist auch einen neuen Schornstein. Und schon wird es etwas kompliziert. Wir haben die wichtigsten Fakten.\u003C\/p\u003E\n  \u003C\/div\u003E\n\n    \u003C\/article\u003E\n  \u003C\/a\u003E\n  \u003Cspan class=\u0022article--bookmark\u0022\u003E\u003Cdrupal-render-placeholder callback=\u0022flag.link_builder:build\u0022 arguments=\u00220=node\u0026amp;1=2412\u0026amp;2=bookmark\u0026amp;3=teaser\u0022 token=\u0022jr28tr_wkFDqKjuqExGK9tSeTK118Tk7hn-JGWxBOJk\u0022\u003E\u003C\/drupal-render-placeholder\u003E\u003C\/span\u003E\n\u003C\/div\u003E\n\n\u003Cdiv  class=\u0022node node--type--article node--view-mode--teaser\u0022\u003E\n  \u003Ca href=\u0022\/heizung\/waermeerzeugung\/fakten-zur-din-12831-wie-wird-eigentlich-die-heizlast-berechnet\u0022\n     aria-label=\u0022Fakten zur DIN 12831: Wie wird eigentlich die Heizlast berechnet?\u0022\u003E\n      \u003Cfigure class=\u0022article--teaser-image\u0022\u003E\n              \u003Cdiv data-b-token=\u0022b-570d12c572d\u0022 class=\u0022media media--blazy media--bundle--image media--image media--responsive\u0022\u003E  \u003Cpicture\u003E\n                  \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_phone\/public\/2017-12\/fotolia_182818971_subscription_monthly_m.jpg.webp?h=c28d936f\u0026amp;itok=tXG9uxkl 1x\u0022 media=\u0022all and (max-width: 480px)\u0022 type=\u0022image\/webp\u0022 width=\u0022460\u0022 height=\u0022260\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-12\/fotolia_182818971_subscription_monthly_m.jpg.webp?h=c28d936f\u0026amp;itok=8CrjxZaS 1x\u0022 media=\u0022all and (min-width: 481px) and (max-width: 767px)\u0022 type=\u0022image\/webp\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-12\/fotolia_182818971_subscription_monthly_m.jpg.webp?h=c28d936f\u0026amp;itok=8CrjxZaS 1x\u0022 media=\u0022all and (min-width: 768px) and (max-width: 1023px)\u0022 type=\u0022image\/webp\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-12\/fotolia_182818971_subscription_monthly_m.jpg.webp?h=c28d936f\u0026amp;itok=8CrjxZaS 1x\u0022 media=\u0022all and (min-width: 1024px) and (max-width: 1599px)\u0022 type=\u0022image\/webp\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline_xxl\/public\/2017-12\/fotolia_182818971_subscription_monthly_m.jpg.webp?h=c28d936f\u0026amp;itok=5tI4xb1u 1x\u0022 media=\u0022all and (min-width: 1600px)\u0022 type=\u0022image\/webp\u0022 width=\u0022240\u0022 height=\u0022180\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_phone\/public\/2017-12\/fotolia_182818971_subscription_monthly_m.jpg?h=c28d936f\u0026amp;itok=tXG9uxkl 1x\u0022 media=\u0022all and (max-width: 480px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022460\u0022 height=\u0022260\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-12\/fotolia_182818971_subscription_monthly_m.jpg?h=c28d936f\u0026amp;itok=8CrjxZaS 1x\u0022 media=\u0022all and (min-width: 481px) and (max-width: 767px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-12\/fotolia_182818971_subscription_monthly_m.jpg?h=c28d936f\u0026amp;itok=8CrjxZaS 1x\u0022 media=\u0022all and (min-width: 768px) and (max-width: 1023px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-12\/fotolia_182818971_subscription_monthly_m.jpg?h=c28d936f\u0026amp;itok=8CrjxZaS 1x\u0022 media=\u0022all and (min-width: 1024px) and (max-width: 1599px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline_xxl\/public\/2017-12\/fotolia_182818971_subscription_monthly_m.jpg?h=c28d936f\u0026amp;itok=5tI4xb1u 1x\u0022 media=\u0022all and (min-width: 1600px)\u0022 type=\u0022image\/jpeg\u0022 width=\u0022240\u0022 height=\u0022180\u0022\/\u003E\n                  \n\u003Cimg decoding=\u0022async\u0022 class=\u0022media__element b-lazy\u0022 loading=\u0022lazy\u0022 width=\u0022200\u0022 height=\u0022150\u0022 data-zoomed=\u0022https:\/\/www.haustec.de\/sites\/default\/files\/styles\/content__zoomed\/public\/2017-12\/fotolia_182818971_subscription_monthly_m.jpg?itok=FrtVc487\u0022 src=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2017-12\/fotolia_182818971_subscription_monthly_m.jpg?h=c28d936f\u0026amp;itok=8CrjxZaS\u0022 alt=\u0022Fakten zur DIN 12831: Wie wird eigentlich die Heizlast berechnet?\u0022 title=\u0022Fakten zur DIN 12831: Wie wird eigentlich die Heizlast berechnet?\u0022 \/\u003E\n\n\n  \u003C\/picture\u003E\n        \u003C\/div\u003E\n  \n                  \u003C\/figure\u003E\n\n    \u003Carticle class=\u0022article--teaser-content\u0022\u003E\n      \u003Ch3 class=\u0022headline\u0022\u003E\n    Fakten zur DIN 12831: Wie wird eigentlich die Heizlast berechnet?\n  \u003C\/h3\u003E\n  \u003Cdiv class=\u0022article--teaser-body\u0022\u003E\n    \u003Cp\u003EDie DIN 12831 legt fest, mit welchem Verfahren die Heizlast eines Geb\u00e4udes berechnet wird. 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