{"id":66805,"date":"2026-02-24T10:16:59","date_gmt":"2026-02-24T09:16:59","guid":{"rendered":"https:\/\/www.idm-energie.at\/?page_id=66805"},"modified":"2026-07-06T15:16:50","modified_gmt":"2026-07-06T13:16:50","slug":"test-conditions","status":"publish","type":"page","link":"https:\/\/www.idm-energie.at\/en\/heat-pump-efficiency\/test-conditions\/","title":{"rendered":"Test Conditions"},"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;text-transform:uppercase;--fontSize:42;line-height:1;\">Test Conditions in Heat Pump Efficiency<\/h1><\/div><div class=\"fusion-text fusion-text-1\"><p>When comparing heat pump efficiency values such as COP, SCOP, EER, or SEER, one critical factor is often overlooked: test conditions.<\/p>\n<p>Efficiency numbers only have meaning when the temperature conditions, load levels, and measurement standards behind them are clearly defined. Without understanding the test framework, performance values cannot be compared correctly.<\/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\/test-conditions\/#What_Are_Test_Conditions\" >What Are Test Conditions?<\/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\/test-conditions\/#Why_Test_Conditions_Matter\" >Why Test Conditions Matter<\/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\/test-conditions\/#Standardized_European_Test_Framework\" >Standardized European Test Framework<\/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\/test-conditions\/#Understanding_Common_Test_Point_Notation\" >Understanding Common Test Point Notation<\/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\/test-conditions\/#Heating_vs_Cooling_Test_Conditions\" >Heating vs Cooling Test Conditions<\/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\/test-conditions\/#Test_Conditions_and_Seasonal_Metrics\" >Test Conditions and Seasonal Metrics<\/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\/test-conditions\/#Why_Comparing_Efficiency_Without_Test_Conditions_Is_Misleading\" >Why Comparing Efficiency Without Test Conditions Is Misleading<\/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\/test-conditions\/#Real-World_Conditions_vs_Laboratory_Conditions\" >Real-World Conditions vs Laboratory Conditions<\/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\/test-conditions\/#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\/test-conditions\/#Frequently_Asked_Questions_FAQs\" >Frequently Asked Questions (FAQs)<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_Are_Test_Conditions\"><\/span>What Are Test Conditions?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Test conditions describe the standardized laboratory environment under which a heat pump\u2019s performance is measured.<\/p>\n<p><strong>They define:<\/strong><\/p>\n<ul>\n<li>Source temperature (air, ground, or water)<\/li>\n<li>Heating water or cooling outlet temperature<\/li>\n<li>Indoor air temperature (for air systems)<\/li>\n<li>Load level (full load or part load)<\/li>\n<li>Measurement procedure<\/li>\n<\/ul>\n<p>Because heat pump efficiency strongly depends on temperature differences, even small changes in test conditions can significantly change the reported performance value.<\/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=\"Heat pump test conditions for efficiency\" title=\"test-conditions\" src=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/02\/test-conditions-1024x559.webp\" class=\"img-responsive wp-image-66822\" srcset=\"https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/02\/test-conditions-200x109.webp 200w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/02\/test-conditions-400x218.webp 400w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/02\/test-conditions-600x327.webp 600w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/02\/test-conditions-800x436.webp 800w, https:\/\/www.idm-energie.at\/wp-content\/uploads\/2026\/02\/test-conditions-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=\"Why_Test_Conditions_Matter\"><\/span>Why Test Conditions Matter<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Heat pumps do not have a fixed efficiency. Their performance changes depending on:<\/p>\n<ul>\n<li>Outdoor temperature<\/li>\n<li>Required flow temperature<\/li>\n<li>System load<\/li>\n<li>Operating mode (heating or cooling)<\/li>\n<\/ul>\n<p>A COP measured at mild outdoor temperatures will be higher than a COP measured in cold conditions.<\/p>\n<p>This is why efficiency figures must always be read together with the test point notation.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Standardized_European_Test_Framework\"><\/span>Standardized European Test Framework<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In Europe, heat pump performance testing is defined by:<\/p>\n<h3>EN 14511<\/h3>\n<p>This standard defines how to measure:<\/p>\n<ul>\n<li>Heating capacity<\/li>\n<li>Cooling capacity<\/li>\n<li>Electrical power input<\/li>\n<li>COP and EER at specific operating points<\/li>\n<\/ul>\n<p>For seasonal performance calculations, the framework is extended by:<\/p>\n<h3>EN 14825<\/h3>\n<p>This standard defines how to calculate SCOP and SEER using multiple temperature bins and part-load data.<\/p>\n<p>These standards ensure comparability across manufacturers and products within the European market.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Understanding_Common_Test_Point_Notation\"><\/span>Understanding Common Test Point Notation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>You may see notations such as:<\/p>\n<ul>\n<li>A7\/W35<\/li>\n<li>A2\/W35<\/li>\n<li>B0\/W35<\/li>\n<\/ul>\n<p>These codes describe the temperature conditions used during testing.<\/p>\n<p>For example:<\/p>\n<p><strong>A7\/W35<\/strong><\/p>\n<ul>\n<li>A7 = air source temperature 7\u00b0C<\/li>\n<li>W35 = heating water outlet temperature 35\u00b0C<\/li>\n<\/ul>\n<p><strong>A2\/W35<\/strong><\/p>\n<ul>\n<li>Air source temperature 2\u00b0C<\/li>\n<li>Water outlet temperature 35\u00b0C<\/li>\n<\/ul>\n<p>Lower source temperatures or higher water temperatures increase the required temperature lift, which reduces efficiency.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Heating_vs_Cooling_Test_Conditions\"><\/span>Heating vs Cooling Test Conditions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3>Heating Mode<\/h3>\n<p>Test conditions define:<\/p>\n<ul>\n<li>Outdoor air temperature (for air-source systems)<\/li>\n<li>Brine temperature (for ground-source systems)<\/li>\n<li>Heating water outlet temperature<\/li>\n<\/ul>\n<p>COP values are measured at defined combinations of these temperatures.<\/p>\n<h3>Cooling Mode<\/h3>\n<p>For cooling efficiency (EER), test conditions define:<\/p>\n<ul>\n<li>Outdoor temperature<\/li>\n<li>Indoor temperature<\/li>\n<li>Cooling capacity measurement<\/li>\n<\/ul>\n<p>Because cooling efficiency drops as outdoor temperature rises, the selected test temperature directly affects the EER result.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Test_Conditions_and_Seasonal_Metrics\"><\/span>Test Conditions and Seasonal Metrics<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Seasonal metrics such as SCOP and SEER use multiple test points instead of one.<\/p>\n<p>Under EN 14825, seasonal performance includes:<\/p>\n<ul>\n<li>Different outdoor temperature bins<\/li>\n<li>Part-load operation<\/li>\n<li>Auxiliary electricity consumption<\/li>\n<li>Standby losses<\/li>\n<\/ul>\n<p>This approach better represents real operating behavior across a heating or cooling season.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_Comparing_Efficiency_Without_Test_Conditions_Is_Misleading\"><\/span>Why Comparing Efficiency Without Test Conditions Is Misleading<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>If two heat pumps show:<\/p>\n<ul>\n<li>COP 4.5 at A7\/W35<\/li>\n<li>COP 4.5 at A2\/W35<\/li>\n<\/ul>\n<p>They are not equally efficient.<\/p>\n<p>The second value represents performance under colder conditions and is technically more demanding.<\/p>\n<p>Without identical test conditions, direct comparison is not valid.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Real-World_Conditions_vs_Laboratory_Conditions\"><\/span>Real-World Conditions vs Laboratory Conditions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Laboratory test conditions provide:<\/p>\n<ul>\n<li>Standardized comparison<\/li>\n<li>Regulatory compliance verification<\/li>\n<li>Transparent performance documentation<\/li>\n<\/ul>\n<p>However, real-world efficiency depends on:<\/p>\n<ul>\n<li>Climate<\/li>\n<li>Flow temperature settings<\/li>\n<li>Hydraulic design<\/li>\n<li>Control strategy<\/li>\n<li>Installation quality<\/li>\n<\/ul>\n<p>Measured real-world performance is captured by Seasonal Performance Factor (SPF), not laboratory test values.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Practical_Takeaway\"><\/span>Practical Takeaway<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Test conditions answer a fundamental question:<\/p>\n<p><em>\u201cUnder what exact temperature and operating situation was this efficiency measured?\u201d<\/em><\/p>\n<p>When evaluating heat pump efficiency:<\/p>\n<ul>\n<li>Always check the temperature notation (e.g., A7\/W35)<\/li>\n<li>Ensure the same standard was used<\/li>\n<li>Compare identical test points<\/li>\n<li>Distinguish between point values (COP, EER) and seasonal values (SCOP, SEER)<\/li>\n<\/ul>\n<p>Understanding test conditions prevents misinterpretation of performance data and allows fair comparison between systems.<\/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-66805-1\"><div class=\"fusion-panel panel-default panel-6757d2ade66d68ef4 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_6757d2ade66d68ef4\"><a aria-expanded=\"false\" aria-controls=\"6757d2ade66d68ef4\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-66805-1\" data-target=\"#6757d2ade66d68ef4\" href=\"#6757d2ade66d68ef4\"><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 are test conditions in heat pump efficiency?<\/span><\/a><\/h4><\/div><div id=\"6757d2ade66d68ef4\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_6757d2ade66d68ef4\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"310\" data-end=\"448\">Test conditions are the standardized temperature and operating settings under which a heat pump\u2019s performance is measured in a laboratory.<\/p>\n<p data-start=\"450\" data-end=\"478\">They define factors such as:<\/p>\n<ul data-start=\"480\" data-end=\"625\">\n<li data-start=\"480\" data-end=\"526\">\n<p data-start=\"482\" data-end=\"526\">Source temperature (air, ground, or water)<\/p>\n<\/li>\n<li data-start=\"527\" data-end=\"563\">\n<p data-start=\"529\" data-end=\"563\">Heating water outlet temperature<\/p>\n<\/li>\n<li data-start=\"564\" data-end=\"610\">\n<p data-start=\"566\" data-end=\"610\">Indoor air temperature (for cooling tests)<\/p>\n<\/li>\n<li data-start=\"611\" data-end=\"625\">\n<p data-start=\"613\" data-end=\"625\">Load level<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"627\" data-end=\"723\">Efficiency values like COP or EER only have meaning when these conditions are clearly specified.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-302fa082364e72b2c 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_302fa082364e72b2c\"><a aria-expanded=\"false\" aria-controls=\"302fa082364e72b2c\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-66805-1\" data-target=\"#302fa082364e72b2c\" href=\"#302fa082364e72b2c\"><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. Why are test conditions important?<\/span><\/a><\/h4><\/div><div id=\"302fa082364e72b2c\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_302fa082364e72b2c\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"773\" data-end=\"855\">Heat pump efficiency changes depending on temperature differences and system load.<\/p>\n<p data-start=\"857\" data-end=\"983\">A performance value measured under mild conditions will be higher than one measured under colder or more demanding conditions.<\/p>\n<p data-start=\"985\" data-end=\"1075\">Without knowing the exact test conditions, efficiency numbers cannot be compared reliably.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-b20f903ea2854ef70 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_b20f903ea2854ef70\"><a aria-expanded=\"false\" aria-controls=\"b20f903ea2854ef70\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-66805-1\" data-target=\"#b20f903ea2854ef70\" href=\"#b20f903ea2854ef70\"><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. What does A7\/W35 mean?<\/span><\/a><\/h4><\/div><div id=\"b20f903ea2854ef70\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_b20f903ea2854ef70\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"1113\" data-end=\"1160\">A7\/W35 is a common heating test point notation.<\/p>\n<p data-start=\"1162\" data-end=\"1175\">It indicates:<\/p>\n<ul data-start=\"1177\" data-end=\"1266\">\n<li data-start=\"1177\" data-end=\"1215\">\n<p data-start=\"1179\" data-end=\"1215\">A7 = air source temperature of 7\u00b0C<\/p>\n<\/li>\n<li data-start=\"1216\" data-end=\"1266\">\n<p data-start=\"1218\" data-end=\"1266\">W35 = heating water outlet temperature of 35\u00b0C<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1268\" data-end=\"1356\">This means the COP was measured with 7\u00b0C outdoor air and 35\u00b0C heating water temperature.<\/p>\n<p data-start=\"1358\" data-end=\"1486\">Different combinations, such as A2\/W35, represent different test conditions and typically result in different efficiency values.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-e1554b02dcba49795 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_e1554b02dcba49795\"><a aria-expanded=\"false\" aria-controls=\"e1554b02dcba49795\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-66805-1\" data-target=\"#e1554b02dcba49795\" href=\"#e1554b02dcba49795\"><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. Which standards define heat pump test conditions in Europe?<\/span><\/a><\/h4><\/div><div id=\"e1554b02dcba49795\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_e1554b02dcba49795\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"1561\" data-end=\"1695\">In Europe, heating and cooling performance at specific test points is measured according to <strong data-start=\"1653\" data-end=\"1694\"><span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">EN 14511<\/span><\/span><\/strong>.<\/p>\n<p data-start=\"1697\" data-end=\"1816\">Seasonal efficiency calculations, including SCOP and SEER, are defined under <strong data-start=\"1774\" data-end=\"1815\"><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=\"1818\" data-end=\"1907\">These standards ensure consistent and comparable testing procedures across manufacturers.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-aae601ea5b7598d7c 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_aae601ea5b7598d7c\"><a aria-expanded=\"false\" aria-controls=\"aae601ea5b7598d7c\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-66805-1\" data-target=\"#aae601ea5b7598d7c\" href=\"#aae601ea5b7598d7c\"><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. Can two heat pumps with the same COP have different efficiency?<\/span><\/a><\/h4><\/div><div id=\"aae601ea5b7598d7c\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_aae601ea5b7598d7c\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"1986\" data-end=\"1990\">Yes.<\/p>\n<p data-start=\"1992\" data-end=\"2090\">If the COP values were measured under different test conditions, they cannot be directly compared.<\/p>\n<p data-start=\"2092\" data-end=\"2279\">For example, a COP measured at a higher outdoor temperature will usually be higher than one measured in colder conditions. The test point must always be considered when comparing systems.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-81460c37c0832389a 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_81460c37c0832389a\"><a aria-expanded=\"false\" aria-controls=\"81460c37c0832389a\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-66805-1\" data-target=\"#81460c37c0832389a\" href=\"#81460c37c0832389a\"><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. Do test conditions reflect real-world performance?<\/span><\/a><\/h4><\/div><div id=\"81460c37c0832389a\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_81460c37c0832389a\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"2345\" data-end=\"2426\">Test conditions provide standardized laboratory measurements for fair comparison.<\/p>\n<p data-start=\"2428\" data-end=\"2471\">However, real-world performance depends on:<\/p>\n<ul data-start=\"2473\" data-end=\"2589\">\n<li data-start=\"2473\" data-end=\"2484\">\n<p data-start=\"2475\" data-end=\"2484\">Climate<\/p>\n<\/li>\n<li data-start=\"2485\" data-end=\"2514\">\n<p data-start=\"2487\" data-end=\"2514\">Flow temperature settings<\/p>\n<\/li>\n<li data-start=\"2515\" data-end=\"2539\">\n<p data-start=\"2517\" data-end=\"2539\">Installation quality<\/p>\n<\/li>\n<li data-start=\"2540\" data-end=\"2560\">\n<p data-start=\"2542\" data-end=\"2560\">Control strategy<\/p>\n<\/li>\n<li data-start=\"2561\" data-end=\"2589\">\n<p data-start=\"2563\" data-end=\"2589\">Building characteristics<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2591\" data-end=\"2735\">Laboratory test conditions provide a reference point. Measured field performance is typically described using Seasonal Performance Factor (SPF).<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-4b407476cea7f0e6c 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_4b407476cea7f0e6c\"><a aria-expanded=\"false\" aria-controls=\"4b407476cea7f0e6c\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-66805-1\" data-target=\"#4b407476cea7f0e6c\" href=\"#4b407476cea7f0e6c\"><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. Are test conditions the same for heating and cooling?<\/span><\/a><\/h4><\/div><div id=\"4b407476cea7f0e6c\" class=\"panel-collapse collapse \" aria-labelledby=\"toggle_4b407476cea7f0e6c\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p data-start=\"2804\" data-end=\"2807\">No.<\/p>\n<p data-start=\"2809\" data-end=\"2891\">Heating and cooling use different temperature settings and measurement procedures.<\/p>\n<p data-start=\"2893\" data-end=\"3039\">Heating performance (COP) and cooling performance (EER) are measured under different defined conditions according to standardized testing methods.<\/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-66805","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/pages\/66805","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=66805"}],"version-history":[{"count":0,"href":"https:\/\/www.idm-energie.at\/en\/wp-json\/wp\/v2\/pages\/66805\/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=66805"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}