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decoding=\u0022async\u0022 class=\u0022media__element\u0022 width=\u0022200\u0022 height=\u0022150\u0022 data-zoomed=\u0022https:\/\/www.haustec.de\/sites\/default\/files\/styles\/content__zoomed\/public\/2026-08\/at26005_bild_collage.jpg?itok=LocMIEwZ\u0022 src=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2026-08\/at26005_bild_collage.jpg?h=3bfb3491\u0026amp;itok=TOHDKUVH\u0022 alt=\u0022Atec: Trinkwasser-Hygienespeicher eTwin f\u00fcr Einfamilienh\u00e4user\u0022 title=\u0022Atec: Trinkwasser-Hygienespeicher eTwin f\u00fcr Einfamilienh\u00e4user\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    Atec: Trinkwasser-Hygienespeicher eTwin f\u00fcr Einfamilienh\u00e4user \n  \u003C\/h3\u003E\n  \u003Cdiv class=\u0022article--teaser-body\u0022\u003E\n    \u003Cp\u003EDer eTwin von 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width=\u0022240\u0022 height=\u0022180\u0022\/\u003E\n                  \n\u003Cimg decoding=\u0022async\u0022 class=\u0022media__element\u0022 width=\u0022200\u0022 height=\u0022150\u0022 data-zoomed=\u0022https:\/\/www.haustec.de\/sites\/default\/files\/styles\/content__zoomed\/public\/2026-06\/cd6d2dfd-12ce-5407-7be4-e11ec6bb65d8.jpg?itok=GoV-OuUK\u0022 src=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2026-06\/cd6d2dfd-12ce-5407-7be4-e11ec6bb65d8.jpg?h=34bbd072\u0026amp;itok=g0N4wlJv\u0022 alt=\u0022W\u00e4rmepumpen\u00adstrom-\/Gas\u00adpreis\u00ad-Baro\u00admeter im Juni 2026\u0022 title=\u0022W\u00e4rmepumpen\u00adstrom-\/Gas\u00adpreis\u00ad-Baro\u00admeter im Juni 2026\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\u00adstrom-\/Gas\u00adpreis\u00ad-Baro\u00admeter im Juni 2026\n  \u003C\/h3\u003E\n  \u003Cdiv class=\u0022article--teaser-body\u0022\u003E\n    \u003Cp\u003EDas WP-Strom-\/Gaspreis-Barometer zeigt das Strom-\/Gaspreisverh\u00e4ltnis (SGV) f\u00fcr zw\u00f6lf Orte in Deutschland. Es handelt sich dabei um eine Momentaufnahme zur Monatsmitte im Juni.\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=24071\u0026amp;2=bookmark\u0026amp;3=teaser\u0022 token=\u0022bZ8PFET6xTUSEpoyL1ZQiVx9btvUy9rBMR2znknM--w\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\/waermenutzung\/bio-treppe-im-gmodg-der-weg-zum-gasausstieg\u0022\n     aria-label=\u0022Bio-Treppe im GModG: Der Weg zum Gasausstieg\u0022\u003E\n      \u003Cfigure class=\u0022article--teaser-image\u0022\u003E\n              \u003Cdiv data-b-token=\u0022b-99785dc8060\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\/2025-09\/adobestock_712051265.jpeg.webp?h=790be497\u0026amp;itok=hfInGPOw 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\/2025-09\/adobestock_712051265.jpeg.webp?h=790be497\u0026amp;itok=KsPMe--h 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\/2025-09\/adobestock_712051265.jpeg.webp?h=790be497\u0026amp;itok=KsPMe--h 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\/2025-09\/adobestock_712051265.jpeg.webp?h=790be497\u0026amp;itok=KsPMe--h 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\/2025-09\/adobestock_712051265.jpeg.webp?h=790be497\u0026amp;itok=cZmmIDRu 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\/2025-09\/adobestock_712051265.jpeg?h=790be497\u0026amp;itok=hfInGPOw 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\/2025-09\/adobestock_712051265.jpeg?h=790be497\u0026amp;itok=KsPMe--h 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\/2025-09\/adobestock_712051265.jpeg?h=790be497\u0026amp;itok=KsPMe--h 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\/2025-09\/adobestock_712051265.jpeg?h=790be497\u0026amp;itok=KsPMe--h 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\/2025-09\/adobestock_712051265.jpeg?h=790be497\u0026amp;itok=cZmmIDRu 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\u0022 width=\u0022200\u0022 height=\u0022150\u0022 data-zoomed=\u0022https:\/\/www.haustec.de\/sites\/default\/files\/styles\/content__zoomed\/public\/2025-09\/adobestock_712051265.jpeg?itok=B3kT3iWH\u0022 src=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2025-09\/adobestock_712051265.jpeg?h=790be497\u0026amp;itok=KsPMe--h\u0022 alt=\u0022Gutachten: BWP warnt vor R\u00fccknahme der Heizungsregeln im GEG\u0022 title=\u0022Gutachten: BWP warnt vor R\u00fccknahme der Heizungsregeln im GEG\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      \u003Cspan class=\u0022article--protection-icon\u0022\u003E\u003Ci class=\u0022mi mi-add\u0022\u003E\u003C\/i\u003E\u003C\/span\u003E\n    Bio-Treppe im GModG: Der Weg zum Gasausstieg\n  \u003C\/h3\u003E\n  \u003Cdiv class=\u0022article--teaser-body\u0022\u003E\n    \u003Cp\u003EDie \u201eAbschaffung des Heizungsgesetzes\u0022 senkt die Pflicht-Quote erneuerbarer Energien f\u00fcr neue \u00d6l- und Gasheizungen von 65 Prozent auf zun\u00e4chst 10 Prozent. Wirtschaftlich \u00e4ndert das meist wenig.\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=23692\u0026amp;2=bookmark\u0026amp;3=teaser\u0022 token=\u0022gZjaUW_4R6w9gL_2l2Euxmjjq7wUjZP_i9PMx7Usrh0\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\/waermenutzung\/contracting-schlafender-riese-der-waermewende-oder-kostenfalle-fuer-mieter\u0022\n     aria-label=\u0022Contracting: Schlafender Riese der W\u00e4rmewende \u2013 oder Kostenfalle f\u00fcr Mieter?\u0022\u003E\n      \u003Cfigure class=\u0022article--teaser-image\u0022\u003E\n              \u003Cdiv data-b-token=\u0022b-e4c92fe1552\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\/2026-03\/generated-image-1.png.webp?h=197483aa\u0026amp;itok=L6zYFj3J 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\/2026-03\/generated-image-1.png.webp?h=197483aa\u0026amp;itok=BoN9q_My 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\/2026-03\/generated-image-1.png.webp?h=197483aa\u0026amp;itok=BoN9q_My 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\/2026-03\/generated-image-1.png.webp?h=197483aa\u0026amp;itok=BoN9q_My 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\/2026-03\/generated-image-1.png.webp?h=197483aa\u0026amp;itok=NETxj6Hw 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\/2026-03\/generated-image-1.png?h=197483aa\u0026amp;itok=L6zYFj3J 1x\u0022 media=\u0022all and (max-width: 480px)\u0022 type=\u0022image\/png\u0022 width=\u0022460\u0022 height=\u0022260\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2026-03\/generated-image-1.png?h=197483aa\u0026amp;itok=BoN9q_My 1x\u0022 media=\u0022all and (min-width: 481px) and (max-width: 767px)\u0022 type=\u0022image\/png\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2026-03\/generated-image-1.png?h=197483aa\u0026amp;itok=BoN9q_My 1x\u0022 media=\u0022all and (min-width: 768px) and (max-width: 1023px)\u0022 type=\u0022image\/png\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2026-03\/generated-image-1.png?h=197483aa\u0026amp;itok=BoN9q_My 1x\u0022 media=\u0022all and (min-width: 1024px) and (max-width: 1599px)\u0022 type=\u0022image\/png\u0022 width=\u0022200\u0022 height=\u0022150\u0022\/\u003E\n              \u003Csource srcset=\u0022\/sites\/default\/files\/styles\/teaser_image_inline_xxl\/public\/2026-03\/generated-image-1.png?h=197483aa\u0026amp;itok=NETxj6Hw 1x\u0022 media=\u0022all and (min-width: 1600px)\u0022 type=\u0022image\/png\u0022 width=\u0022240\u0022 height=\u0022180\u0022\/\u003E\n                  \n\u003Cimg decoding=\u0022async\u0022 class=\u0022media__element\u0022 width=\u0022200\u0022 height=\u0022150\u0022 data-zoomed=\u0022https:\/\/www.haustec.de\/sites\/default\/files\/styles\/content__zoomed\/public\/2026-03\/generated-image-1.png?itok=ybLARNDe\u0022 src=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2026-03\/generated-image-1.png?h=197483aa\u0026amp;itok=BoN9q_My\u0022 alt=\u0022Contracting: Schlafender Riese der W\u00e4rmewende \u2013 oder Kostenfalle f\u00fcr Mieter?\u0022 title=\u0022Contracting: Schlafender Riese der W\u00e4rmewende \u2013 oder Kostenfalle f\u00fcr Mieter?\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      \u003Cspan class=\u0022article--protection-icon\u0022\u003E\u003Ci class=\u0022mi mi-add\u0022\u003E\u003C\/i\u003E\u003C\/span\u003E\n    Contracting: Schlafender Riese der W\u00e4rmewende \u2013 oder Kostenfalle f\u00fcr Mieter?\n  \u003C\/h3\u003E\n  \u003Cdiv class=\u0022article--teaser-body\u0022\u003E\n    \u003Cp\u003EContracting gilt als schlafender Riese der W\u00e4rmewende. Doch intransparente Vertr\u00e4ge und steigende Heizkosten trotz Sanierung tr\u00fcben den Ruf. Wann sich das Modell lohnt und wann Vorsicht geboten ist.\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=23630\u0026amp;2=bookmark\u0026amp;3=teaser\u0022 token=\u0022mXzE54IJupbN2uB5ExnSc1CbQKSKTKeDkDlhhPtFpF4\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\/waermenutzung\/fernauslesbare-messgeraete-frist-fuer-umruestung-laeuft-ab\u0022\n     aria-label=\u0022Fernauslesbare Messger\u00e4te: Frist f\u00fcr Umr\u00fcstung l\u00e4uft ab\u0022\u003E\n      \u003Cfigure class=\u0022article--teaser-image\u0022\u003E\n              \u003Cdiv data-b-token=\u0022b-a87be45d181\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\/2021-11\/heizkosten_2.jpg.webp?h=95d44630\u0026amp;itok=6lqBjl3B 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\/2021-11\/heizkosten_2.jpg.webp?h=95d44630\u0026amp;itok=uuImkF_8 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\/2021-11\/heizkosten_2.jpg.webp?h=95d44630\u0026amp;itok=uuImkF_8 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\/2021-11\/heizkosten_2.jpg.webp?h=95d44630\u0026amp;itok=uuImkF_8 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\/2021-11\/heizkosten_2.jpg.webp?h=95d44630\u0026amp;itok=JPyZCbP6 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\/2021-11\/heizkosten_2.jpg?h=95d44630\u0026amp;itok=6lqBjl3B 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\/2021-11\/heizkosten_2.jpg?h=95d44630\u0026amp;itok=uuImkF_8 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\/2021-11\/heizkosten_2.jpg?h=95d44630\u0026amp;itok=uuImkF_8 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\/2021-11\/heizkosten_2.jpg?h=95d44630\u0026amp;itok=uuImkF_8 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\/2021-11\/heizkosten_2.jpg?h=95d44630\u0026amp;itok=JPyZCbP6 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\u0022 width=\u0022200\u0022 height=\u0022150\u0022 data-zoomed=\u0022https:\/\/www.haustec.de\/sites\/default\/files\/styles\/content__zoomed\/public\/2021-11\/heizkosten_2.jpg?itok=1A6ieY-U\u0022 src=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2021-11\/heizkosten_2.jpg?h=95d44630\u0026amp;itok=uuImkF_8\u0022 alt=\u0022Heizkosten\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    Fernauslesbare Messger\u00e4te: Frist f\u00fcr Umr\u00fcstung l\u00e4uft ab\n  \u003C\/h3\u003E\n  \u003Cdiv class=\u0022article--teaser-body\u0022\u003E\n    \u003Cp\u003EBis zum 31. Dezember 2026 m\u00fcssen alle Wohngeb\u00e4ude in Deutschland gem\u00e4\u00df der novellierten Heizkostenverordnung (HKVO) mit fernauslesbaren Messger\u00e4ten ausgestattet sein. Wer jetzt nicht handelt, riskiert m\u00f6gliche Sanktionen bei Nichteinhaltung.\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=23351\u0026amp;2=bookmark\u0026amp;3=teaser\u0022 token=\u0022jFPWcIt5WqH7iKPKxy7y5qlNcjFIMFrtIAvgleExCU4\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\/waermenutzung\/nt-heizkoerper-lohnt-sich-der-heizkoerperaustausch\u0022\n     aria-label=\u0022NT-Heizk\u00f6rper: Lohnt sich der Heizk\u00f6rperaustausch?\u0022\u003E\n      \u003Cfigure class=\u0022article--teaser-image\u0022\u003E\n              \u003Cdiv data-b-token=\u0022b-8a34d27c171\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\/2026-02\/experteninterview_zehnder-austausch-heizkoerper-motiv-2.jpg.webp?h=60f1114a\u0026amp;itok=sk860HjI 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\/2026-02\/experteninterview_zehnder-austausch-heizkoerper-motiv-2.jpg.webp?h=60f1114a\u0026amp;itok=4GH5fAm9 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\/2026-02\/experteninterview_zehnder-austausch-heizkoerper-motiv-2.jpg.webp?h=60f1114a\u0026amp;itok=4GH5fAm9 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\/2026-02\/experteninterview_zehnder-austausch-heizkoerper-motiv-2.jpg.webp?h=60f1114a\u0026amp;itok=4GH5fAm9 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\/2026-02\/experteninterview_zehnder-austausch-heizkoerper-motiv-2.jpg.webp?h=60f1114a\u0026amp;itok=MhF4L25j 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\/2026-02\/experteninterview_zehnder-austausch-heizkoerper-motiv-2.jpg?h=60f1114a\u0026amp;itok=sk860HjI 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\/2026-02\/experteninterview_zehnder-austausch-heizkoerper-motiv-2.jpg?h=60f1114a\u0026amp;itok=4GH5fAm9 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\/2026-02\/experteninterview_zehnder-austausch-heizkoerper-motiv-2.jpg?h=60f1114a\u0026amp;itok=4GH5fAm9 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\/2026-02\/experteninterview_zehnder-austausch-heizkoerper-motiv-2.jpg?h=60f1114a\u0026amp;itok=4GH5fAm9 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\/2026-02\/experteninterview_zehnder-austausch-heizkoerper-motiv-2.jpg?h=60f1114a\u0026amp;itok=MhF4L25j 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\u0022 width=\u0022200\u0022 height=\u0022150\u0022 data-zoomed=\u0022https:\/\/www.haustec.de\/sites\/default\/files\/styles\/content__zoomed\/public\/2026-02\/experteninterview_zehnder-austausch-heizkoerper-motiv-2.jpg?itok=RCjPVqPT\u0022 src=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2026-02\/experteninterview_zehnder-austausch-heizkoerper-motiv-2.jpg?h=60f1114a\u0026amp;itok=4GH5fAm9\u0022 alt=\u0022Effiziente W\u00e4rme\u00fcbergabe: Warum sich der Heizk\u00f6rperaustausch lohnt\u0022 title=\u0022Effiziente W\u00e4rme\u00fcbergabe: Warum sich der Heizk\u00f6rperaustausch lohnt\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      \u003Cspan class=\u0022article--protection-icon\u0022\u003E\u003Ci class=\u0022mi mi-add\u0022\u003E\u003C\/i\u003E\u003C\/span\u003E\n    Effiziente W\u00e4rme\u00fcbergabe: Warum sich der 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src=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2021-11\/heizkosten.jpg?h=95d44630\u0026amp;itok=tBv80Oc-\u0022 alt=\u0022Heizkosten\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    Heizkostenprognose 2025: Trotz sinkender Energiepreise Kostenanstieg erwartet\n  \u003C\/h3\u003E\n  \u003Cdiv class=\u0022article--teaser-body\u0022\u003E\n    \u003Cp\u003EF\u00fcr die Heizkostenabrechnung 2025 m\u00fcssen sich Verbraucher trotz sinkender Energiepreise auf h\u00f6here Kosten einstellen. 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src=\u0022\/sites\/default\/files\/styles\/teaser_image_inline\/public\/2025-12\/29c719ff-00f2-a8e0-772f-6c1f9dc152b2.jpg?h=34bbd072\u0026amp;itok=N-G9CbBj\u0022 alt=\u0022W\u00e4rmepumpen\u00adstrom-\/Gas\u00adpreis\u00ad-Baro\u00admeter im Dezember 2025\u0022 title=\u0022W\u00e4rmepumpen\u00adstrom-\/Gas\u00adpreis\u00ad-Baro\u00admeter im Dezember 2025\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      \u003Cspan class=\u0022article--protection-icon\u0022\u003E\u003Ci class=\u0022mi mi-add\u0022\u003E\u003C\/i\u003E\u003C\/span\u003E\n    W\u00e4rmepumpen\u00adstrom-\/Gas\u00adpreis\u00ad-Baro\u00admeter im Dezember 2025\n  \u003C\/h3\u003E\n  \u003Cdiv class=\u0022article--teaser-body\u0022\u003E\n    \u003Cp\u003EDas WP-Strom-\/Gaspreis-Barometer zeigt das Strom-\/Gaspreisverh\u00e4ltnis (SGV) 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