{"id":66889,"date":"2026-02-24T15:28:19","date_gmt":"2026-02-24T14:28:19","guid":{"rendered":"https:\/\/www.idm-energie.at\/?page_id=66889"},"modified":"2026-07-06T15:24:15","modified_gmt":"2026-07-06T13:24:15","slug":"labeling-eta-s","status":"publish","type":"page","link":"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/labeling-eta-s\/","title":{"rendered":"Energy Labelling"},"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-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-0 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\"><nav class=\"fusion-breadcrumbs fusion-breadcrumbs-1\" style=\"--awb-margin-top:1%;--awb-breadcrumb-sep:&#039;\/&#039;;\" aria-label=\"Breadcrumb\"><nav aria-label=\"breadcrumbs\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Home<\/span><\/p><\/nav><\/nav><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-center fusion-title-text fusion-title-size-one\" style=\"--awb-margin-top:3%;--awb-margin-bottom:3%;--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h1 class=\"fusion-title-heading title-heading-center fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:42;line-height:1;\">ENERGY LABELLING \u2013 SEASONAL SPACE HEATING ENERGY EFFICIENCY (\u03b7s)<\/h1><\/div><div class=\"fusion-text fusion-text-1\"><p>When you look at a European energy label for a heat pump, one of the key values behind the efficiency class is seasonal space heating energy efficiency (\u03b7s).<\/p>\n<p>This indicator translates seasonal performance into a standardized efficiency percentage. It is the basis for assigning energy classes (such as A+++ to lower classes) under European energy labeling regulations.<\/p>\n<p>Understanding \u03b7s helps you interpret what an energy label actually represents.<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 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-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-stretch 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-1 fusion-flex-column\" style=\"--awb-padding-top:1%;--awb-padding-right:2%;--awb-padding-left:2%;--awb-overflow:hidden;--awb-bg-color:#fff042;--awb-bg-color-hover:#fff042;--awb-bg-size:cover;--awb-border-radius:16px 16px 16px 16px;--awb-width-large:800px;--awb-margin-top-large:0px;--awb-spacing-right-large:2%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:2%;--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-2 fusion-sep-none fusion-title-center fusion-title-text fusion-title-size-paragraph blink-heading\" style=\"--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;--awb-font-size:20px;\"><p class=\"fusion-title-heading title-heading-center title-heading-tag fusion-responsive-typography-calculated\" style=\"margin:0;text-transform:uppercase;font-size:1em;--fontSize:20;line-height:1.8;\"><strong>Configure your personalized heat pump system!<\/strong><\/p><\/div><div class=\"fusion-builder-row fusion-builder-row-inner fusion-row fusion-flex-align-items-stretch fusion-flex-justify-content-center fusion-flex-content-wrap\" style=\"--awb-flex-grow:0;--awb-flex-grow-medium:0;--awb-flex-grow-small:0;--awb-flex-shrink:0;--awb-flex-shrink-medium:0;--awb-flex-shrink-small:0;width:104% !important;max-width:104% !important;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-0 fusion_builder_column_inner_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:-5px;--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\" style=\"--awb-margin-left:2%;\"><p style=\"text-align: left;\">Plan your heat pump system with iDM Energiesysteme. Discover efficient heating, cooling, and hot water solutions for new buildings, renovations, and modern energy systems. Configure and personalize your iDM heat pump solution in just a few clicks.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-1 fusion_builder_column_inner_2_3 2_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:66.666666666667%;--awb-margin-top-large:0px;--awb-spacing-right-large:2.88%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:2.88%;--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-3\"><div style=\"display: flex; align-items: center; gap: 15px; flex-wrap: wrap;\">\n<div style=\"display: flex;\"><img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73518 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/thomas-portrait-150x150.jpg\" alt=\"Thomas Pletzer\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/thomas-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/thomas-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><br \/>\n<img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73509 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/matthias-portrait-150x150.jpg\" alt=\"Matthias Steiner\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/matthias-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/matthias-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><br \/>\n<img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73500 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/christian-hutter-portrait-150x150.jpg\" alt=\"Christian Hutter\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/christian-hutter-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/christian-hutter-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><br \/>\n<img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73491 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/adrian-portrait-150x150.jpg\" alt=\"Adrian Egger\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/adrian-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/adrian-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/div>\n<div style=\"color: #000000; line-height: 0.7; margin-left: 2%;\"><strong style=\"display: block;\">CONNECT WITH OUR EXPERTS<\/strong><br \/>\n<span style=\"opacity: 0.8;\">50+ Years of Heat Pumps Experience<\/span><\/div>\n<\/div>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-2 fusion_builder_column_inner_1_3 1_3 fusion-flex-column fusion-flex-align-self-center\" style=\"--awb-bg-size:cover;--awb-width-large:33.333333333333%;--awb-margin-top-large:0px;--awb-spacing-right-large:5.76%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:5.76%;--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-center fusion-content-layout-column\"><div style=\"text-align:center;\"><a class=\"fusion-button button-flat fusion-button-default-size button-default fusion-button-default button-1 fusion-button-default-span fusion-button-default-type\" target=\"_self\" href=\"https:\/\/konfigurator.myidm.at\/#\/?lang=EN\" rel=\"noopener\"><span class=\"fusion-button-text awb-button__text awb-button__text--default\">Configure Now!<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-3 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-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-2 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 class=\"fusion-text fusion-text-4\">\n<\/div><div class=\"fusion-text fusion-text-5\"><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_87 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/labeling-eta-s\/#What_Is_Seasonal_Space_Heating_Energy_Efficiency_%CE%B7s\" >What Is Seasonal Space Heating Energy Efficiency (\u03b7s)?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/labeling-eta-s\/#Regulatory_Framework_for_Energy_Labelling\" >Regulatory Framework for Energy Labelling<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/labeling-eta-s\/#How_%CE%B7s_Is_Calculated\" >How \u03b7s Is Calculated<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/labeling-eta-s\/#What_%CE%B7s_Represents_on_the_Energy_Label\" >What \u03b7s Represents on the Energy Label<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/labeling-eta-s\/#Why_%CE%B7s_Is_Different_from_COP_and_SCOP\" >Why \u03b7s Is Different from COP and SCOP<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/labeling-eta-s\/#Climate_Influence_on_%CE%B7s\" >Climate Influence on \u03b7s<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/labeling-eta-s\/#What_%CE%B7s_Does_Not_Show\" >What \u03b7s Does Not Show<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/labeling-eta-s\/#Why_Seasonal_Energy_Labelling_Matters\" >Why Seasonal Energy Labelling Matters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/labeling-eta-s\/#Practical_Takeaway\" >Practical Takeaway<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/labeling-eta-s\/#Frequently_Asked_Questions_FAQs\" >Frequently Asked Questions (FAQs)<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_Seasonal_Space_Heating_Energy_Efficiency_%CE%B7s\"><\/span>What Is Seasonal Space Heating Energy Efficiency (\u03b7s)?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Seasonal space heating energy efficiency (\u03b7s) expresses how efficiently a heat pump converts electricity into useful heating over an entire heating season.<\/p>\n<p>Unlike COP, which reflects one test condition, \u03b7s is based on seasonal performance calculations. It incorporates:<\/p>\n<ul>\n<li>Seasonal Coefficient of Performance (SCOP)<\/li>\n<li>Auxiliary electricity consumption<\/li>\n<li>Climate conditions<\/li>\n<li>Temperature distribution over the heating season<\/li>\n<\/ul>\n<p>The result is expressed as a percentage, not as a ratio.<\/p>\n<\/div><div class=\"fusion-image-element\" style=\"text-align:center;--awb-margin-top:2%;--awb-margin-bottom:2%;--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\" style=\"border:3px solid #333333;\"><img decoding=\"async\" width=\"1024\" height=\"559\" alt=\"Energy Labelling Seasonal Space Heating Energy Efficiency\" title=\"labeling-eta-s\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/02\/labeling-eta-s-1024x559.webp\" class=\"img-responsive wp-image-66903\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/02\/labeling-eta-s-200x109.webp 200w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/02\/labeling-eta-s-400x218.webp 400w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/02\/labeling-eta-s-600x327.webp 600w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/02\/labeling-eta-s-800x436.webp 800w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/02\/labeling-eta-s-1200x655.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, (max-width: 640px) 100vw, 1200px\" \/><\/span><\/div><div class=\"fusion-text fusion-text-6\"><h2><span class=\"ez-toc-section\" id=\"Regulatory_Framework_for_Energy_Labelling\"><\/span>Regulatory Framework for Energy Labelling<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Seasonal space heating efficiency is defined within the European regulatory framework under:<\/p>\n<ul>\n<li>EU Ecodesign Regulation 813\/2013<\/li>\n<li>EU Energy Labelling Regulation 811\/2013<\/li>\n<\/ul>\n<p>These regulations establish:<\/p>\n<ul>\n<li>How seasonal efficiency must be calculated<\/li>\n<li>How energy classes are assigned<\/li>\n<li>What information must appear on the energy label<\/li>\n<\/ul>\n<p>The seasonal calculation method itself is based on EN 14825, which defines how SCOP is determined.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_%CE%B7s_Is_Calculated\"><\/span>How \u03b7s Is Calculated<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The calculation of \u03b7s starts with SCOP values determined according to EN 14825.<\/p>\n<p>The seasonal efficiency formula includes:<\/p>\n<ul>\n<li>Seasonal heating performance<\/li>\n<li>Corrections for primary energy factors<\/li>\n<li>Auxiliary electricity consumption<\/li>\n<li>Standby losses<\/li>\n<\/ul>\n<p>Because \u03b7s is expressed as a percentage, it allows comparison with other heating technologies under the same regulatory framework.<\/p>\n<p>Higher \u03b7s values correspond to higher energy classes on the European energy label.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_%CE%B7s_Represents_on_the_Energy_Label\"><\/span>What \u03b7s Represents on the Energy Label<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>On the official EU energy label for heat pumps, \u03b7s determines the seasonal space heating efficiency class.<\/p>\n<p>For example:<\/p>\n<ul>\n<li>Higher \u03b7s \u2192 Higher efficiency class (e.g., A+++)<\/li>\n<li>Lower \u03b7s \u2192 Lower efficiency class<\/li>\n<\/ul>\n<p>The label also shows:<\/p>\n<ul>\n<li>Sound power level<\/li>\n<li>Rated heat output<\/li>\n<li>Climate category (average, warmer, colder)<\/li>\n<\/ul>\n<p>This ensures consistent consumer information across the European market.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_%CE%B7s_Is_Different_from_COP_and_SCOP\"><\/span>Why \u03b7s Is Different from COP and SCOP<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>It is important to distinguish between metrics:<\/p>\n<ul>\n<li><strong>COP<\/strong> \u2192 efficiency at one test condition<\/li>\n<li><strong>SCOP<\/strong> \u2192 calculated seasonal efficiency ratio<\/li>\n<li><strong>\u03b7s<\/strong> \u2192 seasonal efficiency expressed as a percentage for regulatory labeling<\/li>\n<\/ul>\n<p>\u03b7s is not a direct measurement. It is a regulated efficiency value derived from standardized seasonal performance calculations.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Climate_Influence_on_%CE%B7s\"><\/span>Climate Influence on \u03b7s<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Energy labeling requires seasonal efficiency to be declared according to defined European climate zones:<\/p>\n<ul>\n<li>Warmer climate<\/li>\n<li>Average climate<\/li>\n<li>Colder climate<\/li>\n<\/ul>\n<p>These categories reflect different seasonal temperature distributions.<\/p>\n<p>Because climate affects seasonal performance, \u03b7s values differ depending on which climate profile is used.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_%CE%B7s_Does_Not_Show\"><\/span>What \u03b7s Does Not Show<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>While \u03b7s provides standardized seasonal efficiency, it does not:<\/p>\n<ul>\n<li>Guarantee actual electricity consumption<\/li>\n<li>Reflect installation quality<\/li>\n<li>Account for user behavior<\/li>\n<li>Replace real-world monitoring<\/li>\n<\/ul>\n<p>Measured installed system efficiency is typically expressed as Seasonal Performance Factor (SPF).<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_Seasonal_Energy_Labelling_Matters\"><\/span>Why Seasonal Energy Labelling Matters<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Energy labeling based on \u03b7s ensures:<\/p>\n<ul>\n<li>Transparent product comparison<\/li>\n<li>Harmonized efficiency classification across Europe<\/li>\n<li>Consumer protection through standardized methodology<\/li>\n<li>Regulatory compliance for manufacturers<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Practical_Takeaway\"><\/span>Practical Takeaway<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Seasonal Space Heating Energy Efficiency (\u03b7s):<\/p>\n<ul>\n<li>Is the regulatory efficiency percentage shown on EU energy labels<\/li>\n<li>Is derived from seasonal performance calculations<\/li>\n<li>Reflects standardized climate-based assumptions<\/li>\n<li>Determines the energy class of a heat pump<\/li>\n<\/ul>\n<p>If you want to understand what an A+++ label actually represents, \u03b7s is the core efficiency value behind it.<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-4 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-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-stretch 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-3 fusion-flex-column\" style=\"--awb-padding-top:1%;--awb-padding-right:2%;--awb-padding-left:2%;--awb-overflow:hidden;--awb-bg-color:#fff042;--awb-bg-color-hover:#fff042;--awb-bg-size:cover;--awb-border-radius:16px 16px 16px 16px;--awb-width-large:800px;--awb-margin-top-large:0px;--awb-spacing-right-large:2%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:2%;--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-3 fusion-sep-none fusion-title-center fusion-title-text fusion-title-size-paragraph blink-heading\" style=\"--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;--awb-font-size:20px;\"><p class=\"fusion-title-heading title-heading-center title-heading-tag fusion-responsive-typography-calculated\" style=\"margin:0;text-transform:uppercase;font-size:1em;--fontSize:20;line-height:1.8;\"><strong>Configure your personalized heat pump system!<\/strong><\/p><\/div><div class=\"fusion-builder-row fusion-builder-row-inner fusion-row fusion-flex-align-items-stretch fusion-flex-justify-content-center fusion-flex-content-wrap\" style=\"--awb-flex-grow:0;--awb-flex-grow-medium:0;--awb-flex-grow-small:0;--awb-flex-shrink:0;--awb-flex-shrink-medium:0;--awb-flex-shrink-small:0;width:104% !important;max-width:104% !important;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-3 fusion_builder_column_inner_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:-5px;--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-7\" style=\"--awb-margin-left:2%;\"><p style=\"text-align: left;\">Plan your heat pump system with iDM Energiesysteme. Discover efficient heating, cooling, and hot water solutions for new buildings, renovations, and modern energy systems. Configure and personalize your iDM heat pump solution in just a few clicks.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-4 fusion_builder_column_inner_2_3 2_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:66.666666666667%;--awb-margin-top-large:0px;--awb-spacing-right-large:2.88%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:2.88%;--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-8\"><div style=\"display: flex; align-items: center; gap: 15px; flex-wrap: wrap;\">\n<div style=\"display: flex;\"><img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73518 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/thomas-portrait-150x150.jpg\" alt=\"Thomas Pletzer\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/thomas-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/thomas-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><br \/>\n<img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73509 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/matthias-portrait-150x150.jpg\" alt=\"Matthias Steiner\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/matthias-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/matthias-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><br \/>\n<img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73500 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/christian-hutter-portrait-150x150.jpg\" alt=\"Christian Hutter\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/christian-hutter-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/christian-hutter-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><br \/>\n<img decoding=\"async\" width=\"150\" height=\"150\" class=\"size-thumbnail wp-image-73491 aligncenter\" style=\"width: 50px; height: 50px; border-radius: 50%; border: 2px solid #000000;\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/adrian-portrait-150x150.jpg\" alt=\"Adrian Egger\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/adrian-portrait-66x66.jpg 66w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/07\/adrian-portrait-150x150.jpg 150w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/div>\n<div style=\"color: #000000; line-height: 0.7; margin-left: 2%;\"><strong style=\"display: block;\">CONNECT WITH OUR EXPERTS<\/strong><br \/>\n<span style=\"opacity: 0.8;\">50+ Years of Heat Pumps Experience<\/span><\/div>\n<\/div>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-5 fusion_builder_column_inner_1_3 1_3 fusion-flex-column fusion-flex-align-self-center\" style=\"--awb-bg-size:cover;--awb-width-large:33.333333333333%;--awb-margin-top-large:0px;--awb-spacing-right-large:5.76%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:5.76%;--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-center fusion-content-layout-column\"><div style=\"text-align:center;\"><a class=\"fusion-button button-flat fusion-button-default-size button-default fusion-button-default button-2 fusion-button-default-span fusion-button-default-type\" target=\"_self\" href=\"https:\/\/konfigurator.myidm.at\/#\/?lang=EN\" rel=\"noopener\"><span class=\"fusion-button-text awb-button__text awb-button__text--default\">Configure Now!<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-5 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-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 class=\"fusion-text fusion-text-9 fusion-text-no-margin\" style=\"--awb-margin-bottom:5px;\"><h2><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions_FAQs\"><\/span>Frequently Asked Questions (FAQs)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div><div class=\"accordian fusion-accordian\" style=\"--awb-border-size:1px;--awb-icon-size:16px;--awb-content-font-size:15px;--awb-icon-alignment:right;--awb-hover-color:#f9f9fb;--awb-border-color:#e2e2e2;--awb-background-color:#ffffff;--awb-divider-color:#e2e2e2;--awb-divider-hover-color:#e2e2e2;--awb-icon-color:#009fe3;--awb-title-color:#59682f;--awb-content-color:#3f3f3f;--awb-icon-box-color:#212934;--awb-toggle-hover-accent-color:#009fe3;--awb-title-font-family:&quot;Aller&quot;;--awb-title-font-weight:700;--awb-title-font-style:normal;--awb-title-font-size:18px;--awb-content-font-family:&quot;Aller&quot;;--awb-content-font-style:normal;--awb-content-font-weight:400;\"><div class=\"panel-group fusion-toggle-icon-right fusion-toggle-icon-unboxed\" id=\"accordion-66889-1\"><div class=\"fusion-panel panel-default panel-8c6bb5c232bf78c0d fusion-toggle-no-divider fusion-toggle-boxed-mode\" style=\"--awb-title-color:#59682f;--awb-content-color:#3f3f3f;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_8c6bb5c232bf78c0d\"><a aria-expanded=\"false\" aria-controls=\"8c6bb5c232bf78c0d\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-66889-1\" data-target=\"#8c6bb5c232bf78c0d\" href=\"#8c6bb5c232bf78c0d\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">1. What is Seasonal Space Heating Energy Efficiency (\u03b7s)?<\/span><\/a><\/h4><\/div><div id=\"8c6bb5c232bf78c0d\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_8c6bb5c232bf78c0d\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"348\" data-end=\"483\">Seasonal Space Heating Energy Efficiency (\u03b7s) is the regulated seasonal efficiency value used on European energy labels for heat pumps.<\/p>\n<p data-start=\"485\" data-end=\"667\">It expresses how efficiently a heat pump provides heating over an entire season and is shown as a percentage. This value determines the energy class displayed on the EU energy label.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-443597ffeaef815f1 fusion-toggle-no-divider fusion-toggle-boxed-mode\" style=\"--awb-title-color:#59682f;--awb-content-color:#3f3f3f;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_443597ffeaef815f1\"><a aria-expanded=\"false\" aria-controls=\"443597ffeaef815f1\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-66889-1\" data-target=\"#443597ffeaef815f1\" href=\"#443597ffeaef815f1\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">2. How is \u03b7s calculated?<\/span><\/a><\/h4><\/div><div id=\"443597ffeaef815f1\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_443597ffeaef815f1\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"704\" data-end=\"804\">\u03b7s is calculated using seasonal performance data based on <strong data-start=\"762\" data-end=\"803\"><span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">EN 14825<\/span><\/span><\/strong>.<\/p>\n<p data-start=\"806\" data-end=\"831\">The calculation includes:<\/p>\n<ul data-start=\"833\" data-end=\"968\">\n<li data-start=\"833\" data-end=\"879\">\n<p data-start=\"835\" data-end=\"879\">Seasonal Coefficient of Performance (SCOP)<\/p>\n<\/li>\n<li data-start=\"880\" data-end=\"917\">\n<p data-start=\"882\" data-end=\"917\">Auxiliary electricity consumption<\/p>\n<\/li>\n<li data-start=\"918\" data-end=\"936\">\n<p data-start=\"920\" data-end=\"936\">Standby losses<\/p>\n<\/li>\n<li data-start=\"937\" data-end=\"968\">\n<p data-start=\"939\" data-end=\"968\">Climate profile corrections<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"970\" data-end=\"1068\">The final result is converted into a seasonal efficiency percentage for regulatory classification.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-672c2ec3819bd786f fusion-toggle-no-divider fusion-toggle-boxed-mode\" style=\"--awb-title-color:#59682f;--awb-content-color:#3f3f3f;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_672c2ec3819bd786f\"><a aria-expanded=\"false\" aria-controls=\"672c2ec3819bd786f\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-66889-1\" data-target=\"#672c2ec3819bd786f\" href=\"#672c2ec3819bd786f\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">3. Is \u03b7s the same as SCOP?<\/span><\/a><\/h4><\/div><div id=\"672c2ec3819bd786f\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_672c2ec3819bd786f\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"1107\" data-end=\"1110\">No.<\/p>\n<p data-start=\"1112\" data-end=\"1253\">SCOP is a seasonal performance ratio.<br data-start=\"1149\" data-end=\"1152\" \/>\u03b7s is a regulated seasonal efficiency percentage derived from SCOP and additional correction factors.<\/p>\n<p data-start=\"1255\" data-end=\"1271\">In simple terms:<\/p>\n<ul data-start=\"1273\" data-end=\"1378\">\n<li data-start=\"1273\" data-end=\"1311\">\n<p data-start=\"1275\" data-end=\"1311\"><strong data-start=\"1275\" data-end=\"1311\">SCOP = seasonal efficiency ratio<\/strong><\/p>\n<\/li>\n<li data-start=\"1312\" data-end=\"1378\">\n<p data-start=\"1314\" data-end=\"1378\"><strong data-start=\"1314\" data-end=\"1378\">\u03b7s = seasonal efficiency percentage used for energy labeling<\/strong><\/p>\n<\/li>\n<\/ul>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-97cc9035baf7c8b4e fusion-toggle-no-divider fusion-toggle-boxed-mode\" style=\"--awb-title-color:#59682f;--awb-content-color:#3f3f3f;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_97cc9035baf7c8b4e\"><a aria-expanded=\"false\" aria-controls=\"97cc9035baf7c8b4e\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-66889-1\" data-target=\"#97cc9035baf7c8b4e\" href=\"#97cc9035baf7c8b4e\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">4. Why is \u03b7s shown as a percentage?<\/span><\/a><\/h4><\/div><div id=\"97cc9035baf7c8b4e\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_97cc9035baf7c8b4e\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"1426\" data-end=\"1541\">\u03b7s is expressed as a percentage to align heat pump efficiency with the broader European energy labelling framework.<\/p>\n<p data-start=\"1543\" data-end=\"1699\">This allows consistent comparison across heating technologies under <strong data-start=\"1611\" data-end=\"1652\"><span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">EU Energy Labelling Regulation 811\/2013<\/span><\/span><\/strong> and <strong data-start=\"1657\" data-end=\"1698\"><span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">EU Ecodesign Regulation 813\/2013<\/span><\/span><\/strong>.<\/p>\n<p data-start=\"1701\" data-end=\"1769\">The percentage format supports standardized energy class assignment.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-4e63320cf2da98553 fusion-toggle-no-divider fusion-toggle-boxed-mode\" style=\"--awb-title-color:#59682f;--awb-content-color:#3f3f3f;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_4e63320cf2da98553\"><a aria-expanded=\"false\" aria-controls=\"4e63320cf2da98553\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-66889-1\" data-target=\"#4e63320cf2da98553\" href=\"#4e63320cf2da98553\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">5. Does a higher \u03b7s mean lower energy consumption?<\/span><\/a><\/h4><\/div><div id=\"4e63320cf2da98553\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_4e63320cf2da98553\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"1832\" data-end=\"1847\">Generally, yes.<\/p>\n<p data-start=\"1849\" data-end=\"2030\">A higher \u03b7s value indicates better seasonal efficiency under standardized testing conditions, which usually corresponds to lower electricity consumption for the same heating demand.<\/p>\n<p data-start=\"2032\" data-end=\"2138\">However, real energy use depends on installation quality, climate, building insulation, and user behavior.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-95af69a3ba67a951e fusion-toggle-no-divider fusion-toggle-boxed-mode\" style=\"--awb-title-color:#59682f;--awb-content-color:#3f3f3f;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_95af69a3ba67a951e\"><a aria-expanded=\"false\" aria-controls=\"95af69a3ba67a951e\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-66889-1\" data-target=\"#95af69a3ba67a951e\" href=\"#95af69a3ba67a951e\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">6. Does \u03b7s reflect real-world performance?<\/span><\/a><\/h4><\/div><div id=\"95af69a3ba67a951e\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_95af69a3ba67a951e\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"2193\" data-end=\"2331\">\u03b7s is calculated using standardized assumptions and climate profiles. It provides a consistent basis for product comparison across Europe.<\/p>\n<p data-start=\"2333\" data-end=\"2480\">Actual installed performance may differ and is typically evaluated using Seasonal Performance Factor (SPF), which is based on measured system data.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-5ce37efa4ad232c1f fusion-toggle-no-divider fusion-toggle-boxed-mode\" style=\"--awb-title-color:#59682f;--awb-content-color:#3f3f3f;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_5ce37efa4ad232c1f\"><a aria-expanded=\"false\" aria-controls=\"5ce37efa4ad232c1f\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-66889-1\" data-target=\"#5ce37efa4ad232c1f\" href=\"#5ce37efa4ad232c1f\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">7. Why are climate categories shown on the energy label?<\/span><\/a><\/h4><\/div><div id=\"5ce37efa4ad232c1f\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_5ce37efa4ad232c1f\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"2549\" data-end=\"2661\">Energy labels may display seasonal efficiency for different European climate profiles (warmer, average, colder).<\/p>\n<p data-start=\"2663\" data-end=\"2795\">Climate directly influences seasonal performance. Including climate categories ensures transparent comparison for different regions.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":34,"featured_media":2902,"parent":66448,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"100-width.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-66889","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/pages\/66889","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/users\/34"}],"replies":[{"embeddable":true,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/comments?post=66889"}],"version-history":[{"count":0,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/pages\/66889\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/pages\/66448"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/media\/2902"}],"wp:attachment":[{"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/media?parent=66889"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}