{"id":72222,"date":"2026-05-19T09:16:38","date_gmt":"2026-05-19T07:16:38","guid":{"rendered":"https:\/\/www.idm-energie.at\/?post_type=avada_portfolio&#038;p=72222"},"modified":"2026-05-19T10:08:13","modified_gmt":"2026-05-19T08:08:13","slug":"reference-project-residential-complex-tulln","status":"publish","type":"avada_portfolio","link":"https:\/\/www.idm-energie.at\/en\/referenz\/reference-project-residential-complex-tulln\/","title":{"rendered":"Reference Project \u2013 Residential Complex Tulln"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:2%;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-justify-content-center fusion-flex-content-wrap\" style=\"max-width:1185.6px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.84%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-slider-sc\"><div class=\"fusion-flexslider-loading flexslider flexslider-hover-type-none\" data-slideshow_autoplay=\"1\" data-slideshow_smooth_height=\"0\" data-slideshow_speed=\"3500\" style=\"max-width:100%;height:100%;\"><ul class=\"slides\"><li class=\"image\"><span class=\"fusion-image-hover-element hover-type-none\"><img decoding=\"async\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-1.png\" width=\"2560\" height=\"1920\" class=\"wp-image-72117\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-1-200x150.png 200w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-1-400x300.png 400w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-1-600x450.png 600w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-1-800x600.png 800w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-1-1200x900.png 1200w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-1.png 2560w\" sizes=\"(max-width: 1024px) 100vw, (max-width: 640px) 100vw, 600px\" \/><\/span><\/li><li class=\"image\"><span class=\"fusion-image-hover-element hover-type-none\"><img decoding=\"async\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-2.png\" width=\"2560\" height=\"1920\" class=\"wp-image-72126\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-2-200x150.png 200w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-2-400x300.png 400w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-2-600x450.png 600w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-2-800x600.png 800w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-2-1200x900.png 1200w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-2.png 2560w\" sizes=\"(max-width: 1024px) 100vw, (max-width: 640px) 100vw, 600px\" \/><\/span><\/li><li class=\"image\"><span class=\"fusion-image-hover-element hover-type-none\"><img decoding=\"async\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-3.png\" width=\"2560\" height=\"1920\" class=\"wp-image-72135\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-3-200x150.png 200w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-3-400x300.png 400w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-3-600x450.png 600w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-3-800x600.png 800w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-3-1200x900.png 1200w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/wohnhaus-tulln-3.png 2560w\" sizes=\"(max-width: 1024px) 100vw, (max-width: 640px) 100vw, 600px\" \/><\/span><\/li><\/ul><\/div><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.84%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;--awb-font-size:1.4em;\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;font-size:1em;--fontSize:21;line-height:1.4;\"><h3>Sustainable Heating from the Drinking Water System of the City of Tulln<\/h3><\/h2><\/div><div class=\"fusion-text fusion-text-1\" style=\"--awb-text-transform:none;\"><div class=\"qMYqUG_convSearchResultHighlightRoot\">\n<div class=\"qMYqUG_convSearchResultHighlightRoot\">\n<div class=\"relative w-full overflow-visible\">\n<section class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none &#091;&amp;:has(&#091;data-writing-block&#093;)&gt;*&#093;:pointer-events-auto &#091;content-visibility:auto&#093; supports-&#091;content-visibility:auto&#093;:&#091;contain-intrinsic-size:auto_100lvh&#093; R6Vx5W_threadScrollVars scroll-mb-&#091;calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))&#093; scroll-mt-&#091;calc(var(--header-height)+min(200px,max(70px,20svh)))&#093;\" dir=\"auto\" data-turn-id=\"request-WEB:d510c8cc-7fac-4c5f-9201-5c8de6a2e30c-17\" data-turn-id-container=\"request-WEB:d510c8cc-7fac-4c5f-9201-5c8de6a2e30c-17\" data-testid=\"conversation-turn-28\" data-scroll-anchor=\"false\" data-turn=\"assistant\">\n<div class=\"text-base my-auto mx-auto pb-10 &#091;--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))&#093; @w-sm\/main:&#091;--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))&#093; @w-lg\/main:&#091;--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))&#093; px-(--thread-content-margin)\">\n<div class=\"&#091;--thread-content-max-width:40rem&#093; @w-lg\/main:&#091;--thread-content-max-width:48rem&#093; mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\">\n<div class=\"flex max-w-full flex-col gap-4 grow\">\n<div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring &#091;.text-message+&amp;&#093;:mt-1\" dir=\"auto\" tabindex=\"0\" data-message-author-role=\"assistant\" data-message-id=\"b8c42b9b-b2d0-4570-ad2a-8fe3bc08534a\" data-message-model-slug=\"gpt-5-5\" data-turn-start-message=\"true\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden\">\n<div class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\">\n<p data-start=\"0\" data-end=\"353\" data-is-last-node=\"\" data-is-only-node=\"\">In Tulln, a modern residential complex is being developed with a strong focus on sustainable and innovative energy supply. Three powerful iDM TERRA SW 70 MAX heat pumps efficiently utilize energy from the city of Tulln\u2019s drinking water system for heating and domestic hot water generation \u2013 future-proof, resource-efficient, and highly energy-efficient.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-padding-bottom:5%;--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-2\"><div class=\"qMYqUG_convSearchResultHighlightRoot\">\n<div class=\"relative w-full overflow-visible\">\n<section class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none &#091;&amp;:has(&#091;data-writing-block&#093;)&gt;*&#093;:pointer-events-auto &#091;content-visibility:auto&#093; supports-&#091;content-visibility:auto&#093;:&#091;contain-intrinsic-size:auto_100lvh&#093; R6Vx5W_threadScrollVars scroll-mb-&#091;calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))&#093; scroll-mt-&#091;calc(var(--header-height)+min(200px,max(70px,20svh)))&#093;\" dir=\"auto\" data-turn-id=\"request-WEB:d510c8cc-7fac-4c5f-9201-5c8de6a2e30c-18\" data-turn-id-container=\"request-WEB:d510c8cc-7fac-4c5f-9201-5c8de6a2e30c-18\" data-testid=\"conversation-turn-30\" data-scroll-anchor=\"false\" data-turn=\"assistant\">\n<div class=\"text-base my-auto mx-auto pb-10 &#091;--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))&#093; @w-sm\/main:&#091;--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))&#093; @w-lg\/main:&#091;--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))&#093; px-(--thread-content-margin)\">\n<div class=\"&#091;--thread-content-max-width:40rem&#093; @w-lg\/main:&#091;--thread-content-max-width:48rem&#093; mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\">\n<div class=\"flex max-w-full flex-col gap-4 grow\">\n<div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring &#091;.text-message+&amp;&#093;:mt-1\" dir=\"auto\" tabindex=\"0\" data-message-author-role=\"assistant\" data-message-id=\"56973c0d-d591-470f-8e67-52a36fda8915\" data-message-model-slug=\"gpt-5-5\" data-turn-start-message=\"true\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden\">\n<div class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\">\n<p data-start=\"0\" data-end=\"418\">The residential complex in Tulln impressively demonstrates how innovative heat pump technology and sustainable energy sources can be intelligently combined. The energy source is the city of Tulln\u2019s drinking water from a deep storage reservoir. The energy is extracted from the connecting pipeline between two water reservoirs (DN 300) and efficiently used to supply the new residential development with heating energy.<\/p>\n<p data-start=\"420\" data-end=\"706\">At the heart of the system are three powerful TERRA SW 70 MAX heat pumps, providing a combined heating capacity of approximately 200 kW. The multi-stage heat pump system ensures a particularly high level of supply security while optimally adapting operation to the actual energy demand.<\/p>\n<p data-start=\"708\" data-end=\"990\">Heat distribution is provided through a comprehensive underfloor heating system operating at low system temperatures, enabling maximum efficiency. Decentralized apartment stations are used for hygienic domestic hot water preparation, ensuring both comfort and safe hot water supply.<\/p>\n<p data-start=\"992\" data-end=\"1498\">In addition, three 3,000-liter heating buffer tanks ensure optimal storage and distribution of the generated thermal energy. Due to the strict hygiene requirements associated with using drinking water as an energy source, the entire system was planned and implemented in close coordination with the responsible authorities. As a result, the installation meets the highest safety and hygiene standards while demonstrating the enormous potential of sustainable energy generation from existing infrastructure.<\/p>\n<p data-start=\"1500\" data-end=\"1679\" data-is-last-node=\"\" data-is-only-node=\"\">With this project, we once again demonstrate how iNTELLiGENTE heat pump technology enables innovative energy concepts to be implemented efficiently, sustainably, and future-proof.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-bottom:4%;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1185.6px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-center fusion-content-layout-column\"><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:40px;width:100%;\"><\/div><div class=\"awb-gallery-wrapper awb-gallery-wrapper-1 button-span-no\" style=\"--more-btn-alignment:center;\"><div style=\"margin:-3px;--awb-bordersize:0px;\" class=\"fusion-gallery fusion-gallery-container fusion-grid-4 fusion-columns-total-7 fusion-gallery-layout-grid fusion-gallery-1\"><div style=\"padding:3.5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/DJI_0586-scaled.jpg\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/DJI_0586-320x202.jpg\" width=\"320\" height=\"202\" alt=\"\" title=\"DJI_0586\" aria-label=\"DJI_0586\" class=\"img-responsive wp-image-72156 fusion-gallery-image-size-fixed\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/DJI_0586-320x202.jpg 320w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/DJI_0586-700x441.jpg 700w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/a><\/div><\/div><div style=\"padding:3.5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/DJI_0591-scaled.jpg\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/DJI_0591-320x202.jpg\" width=\"320\" height=\"202\" alt=\"\" title=\"DJI_0591\" aria-label=\"DJI_0591\" class=\"img-responsive wp-image-72165 fusion-gallery-image-size-fixed\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/DJI_0591-320x202.jpg 320w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/DJI_0591-700x441.jpg 700w\" sizes=\"(max-width: 320px) 100vw, 320px\" 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fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/GOPR1548-scaled.jpg\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/GOPR1548-320x202.jpg\" width=\"320\" height=\"202\" alt=\"\" title=\"DCIM100GOPROGOPR1548.JPG\" aria-label=\"DCIM100GOPROGOPR1548.JPG\" class=\"img-responsive wp-image-72183 fusion-gallery-image-size-fixed\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/GOPR1548-320x202.jpg 320w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/GOPR1548-700x441.jpg 700w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/a><\/div><\/div><div class=\"clearfix\"><\/div><div style=\"padding:3.5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/GOPR1550-scaled.jpg\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/GOPR1550-320x202.jpg\" width=\"320\" height=\"202\" alt=\"\" title=\"DCIM100GOPROGOPR1550.JPG\" aria-label=\"DCIM100GOPROGOPR1550.JPG\" class=\"img-responsive wp-image-72192 fusion-gallery-image-size-fixed\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/GOPR1550-320x202.jpg 320w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/GOPR1550-700x441.jpg 700w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/a><\/div><\/div><div style=\"padding:3.5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/GOPR1553-scaled.jpg\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/GOPR1553-320x202.jpg\" width=\"320\" height=\"202\" alt=\"\" title=\"DCIM100GOPROGOPR1553.JPG\" aria-label=\"DCIM100GOPROGOPR1553.JPG\" class=\"img-responsive wp-image-72201 fusion-gallery-image-size-fixed\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/GOPR1553-320x202.jpg 320w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/GOPR1553-700x441.jpg 700w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/a><\/div><\/div><div style=\"padding:3.5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-4 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/IDM06934-scaled.jpg\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/IDM06934-320x202.jpg\" width=\"320\" height=\"202\" alt=\"\" title=\"IDM06934\" aria-label=\"IDM06934\" class=\"img-responsive wp-image-72210 fusion-gallery-image-size-fixed\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/IDM06934-320x202.jpg 320w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/05\/IDM06934-700x441.jpg 700w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-3 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1185.6px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-4 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div style=\"text-align:center;\"><a class=\"fusion-button button-flat button-xlarge button-default fusion-button-default button-1 fusion-button-default-span fusion-button-default-type\" target=\"_self\" href=\"https:\/\/www.idm-energie.at\/en\/idm_products\/terra-sw-70-max-h\/\"><i class=\"fa-angle-double-left fas awb-button__icon awb-button__icon--default button-icon-left\" aria-hidden=\"true\"><\/i><span class=\"fusion-button-text awb-button__text awb-button__text--default\">back to product<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sustainable heating from the drinking water system of the City of Tulln: Three TERRA SW 70 MAX heat pumps efficiently supply a modern residential complex with heating and hygienic domestic hot water preparation \u2013 innovative, reliable, and future-oriented.<\/p>\n","protected":false},"author":4,"featured_media":72165,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"portfolio_category":[74],"portfolio_skills":[],"portfolio_tags":[],"class_list":["post-72222","avada_portfolio","type-avada_portfolio","status-publish","format-standard","has-post-thumbnail","hentry","portfolio_category-sw-max-en"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/avada_portfolio\/72222","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/avada_portfolio"}],"about":[{"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/types\/avada_portfolio"}],"author":[{"embeddable":true,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/comments?post=72222"}],"version-history":[{"count":0,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/avada_portfolio\/72222\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/media\/72165"}],"wp:attachment":[{"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/media?parent=72222"}],"wp:term":[{"taxonomy":"portfolio_category","embeddable":true,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/portfolio_category?post=72222"},{"taxonomy":"portfolio_skills","embeddable":true,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/portfolio_skills?post=72222"},{"taxonomy":"portfolio_tags","embeddable":true,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/portfolio_tags?post=72222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}