{"id":20817,"date":"2026-10-29T11:26:57","date_gmt":"2026-10-29T16:26:57","guid":{"rendered":"https:\/\/www.galmicheandsons.com\/hvac-blog\/?p=20817"},"modified":"2026-10-29T11:27:03","modified_gmt":"2026-10-29T16:27:03","slug":"heat-pump-efficiency-ratings","status":"publish","type":"post","link":"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/","title":{"rendered":"Heat Pump Efficiency Ratings Explained: A Homeowner&#8217;s Guide"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 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 ez-toc-toggle\" style=\"cursor:pointer\">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 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#What_Are_Heat_Pump_Efficiency_Ratings\" >What Are Heat Pump Efficiency Ratings?<\/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.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#Understanding_SEER2_Seasonal_Cooling_Efficiency\" >Understanding SEER2: Seasonal Cooling Efficiency<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#How_to_Compare_SEER2_Ratings\" >How to Compare SEER2 Ratings<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#What_Is_EER2_Understanding_Cooling_Performance\" >What Is EER2? Understanding Cooling Performance<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#EER2_vs_SEER2\" >EER2 vs. SEER2<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#What_Is_HSPF2_Understanding_Heating_Efficiency\" >What Is HSPF2? Understanding Heating Efficiency<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#How_to_Compare_HSPF2_Ratings\" >How to Compare HSPF2 Ratings<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#COP_Another_Way_to_Measure_Heat_Pump_Efficiency\" >COP: Another Way to Measure Heat Pump Efficiency<\/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.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#How_to_Compare_Heat_Pump_Efficiency_Ratings\" >How to Compare Heat Pump Efficiency Ratings<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#1_Compare_the_Same_Types_of_Ratings\" >1. Compare the Same Types of Ratings<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#2_Consider_Both_Heating_and_Cooling\" >2. Consider Both Heating and Cooling<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#3_Look_Beyond_the_Efficiency_Numbers\" >3. Look Beyond the Efficiency Numbers<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#4_Consider_Your_Homes_Heating_and_Cooling_Needs\" >4. Consider Your Home&#8217;s Heating and Cooling Needs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#5_Review_the_Complete_Equipment_Specifications\" >5. Review the Complete Equipment Specifications<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#Common_Mistakes_Homeowners_Make_When_Comparing_Efficiency_Ratings\" >Common Mistakes Homeowners Make When Comparing Efficiency Ratings<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/#Compare_Heat_Pump_Options_With_Galmiche_Sons\" >Compare Heat Pump Options With Galmiche &#038; Sons<\/a><\/li><\/ul><\/nav><\/div>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/2026\/10\/heat-pump-efficiency-1-300x203.jpg\" alt=\"Heat Pump Efficiency Ratings Explained: A Homeowner's Guide\" width=\"300\" height=\"203\" class=\"alignright size-medium wp-image-20842\" srcset=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/2026\/10\/heat-pump-efficiency-1-300x203.jpg 300w, https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/2026\/10\/heat-pump-efficiency-1.jpg 600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Choosing a new heat pump involves more than comparing brands, features, and installation prices. You also need to understand how efficiently different systems heat and cool your home. Heat pump efficiency ratings provide a standardized way to compare equipment, helping you make a more informed decision when planning a replacement or installation.<\/p>\n<p>If you&#8217;re researching heat pumps for your St. Louis home, you&#8217;ll likely encounter terms such as SEER2, EER2, and HSPF2. These ratings may look confusing at first, but each one measures a different aspect of performance. Knowing what they mean can help you compare systems more confidently and choose equipment suited to your home&#8217;s heating and cooling needs.<\/p>\n<p>From our <a href=\"https:\/\/www.galmicheandsons.com\/heat-pump-buyers-guide.html\">heat pump buyers guide<\/a> to experienced HVAC professions, we help homeowners understand their HVAC options and make informed decisions about their comfort systems. Here&#8217;s what you should know about heat pump efficiency ratings before choosing your next system.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Are_Heat_Pump_Efficiency_Ratings\"><\/span>What Are Heat Pump Efficiency Ratings?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Heat pump efficiency ratings measure how effectively a system uses electricity to provide heating or cooling under standardized testing conditions. Because heat pumps move heat rather than generate it through combustion, they can provide heating and cooling with relatively low electrical energy input.<\/p>\n<p>However, not all heat pumps perform the same way. Equipment design, operating conditions, and system configuration can affect performance. Efficiency ratings offer a consistent starting point for comparing models, but they don&#8217;t tell the entire story about how a system will perform in your home.<\/p>\n<p>The most common heat pump efficiency ratings include:<\/p>\n<ul>\n<li><strong>SEER2:<\/strong> Measures seasonal cooling efficiency.<\/li>\n<li><strong>EER2:<\/strong> Measures cooling efficiency under specific operating conditions.<\/li>\n<li><strong>HSPF2:<\/strong> Measures seasonal heating efficiency.<\/li>\n<li><strong>COP:<\/strong> Describes the relationship between heat delivered and electricity consumed at a particular operating condition.<\/li>\n<\/ul>\n<p>Each rating provides a different piece of the puzzle. Understanding these differences is especially helpful when comparing <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/high-efficiency-heat-pump-replacement\/\">high efficiency heat pumps<\/a> for the varied weather conditions experienced in the St. Louis area.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Understanding_SEER2_Seasonal_Cooling_Efficiency\"><\/span>Understanding SEER2: Seasonal Cooling Efficiency<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>SEER2 stands for Seasonal Energy Efficiency Ratio 2. It measures a heat pump&#8217;s cooling efficiency across a representative cooling season under standardized testing conditions.<\/p>\n<p>In simple terms, SEER2 compares the amount of cooling a system provides with the electricity it consumes over the testing period. A higher SEER2 rating indicates greater seasonal cooling efficiency under those conditions.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_to_Compare_SEER2_Ratings\"><\/span>How to Compare SEER2 Ratings<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When comparing two heat pumps, a model with a higher SEER2 rating is generally more efficient at seasonal cooling than a lower-rated model when evaluated using the same standard.<\/p>\n<p>For example, a heat pump rated at SEER2 18 has a higher seasonal cooling efficiency rating than a comparable model rated at SEER2 15. However, the difference in ratings does not translate directly into a guaranteed percentage of energy savings for your household.<\/p>\n<p>Actual electricity use depends on several factors, including outdoor temperatures, thermostat settings, insulation, ductwork, system sizing, and how frequently your heat pump operates.<\/p>\n<p>SEER2 is particularly relevant to St. Louis homeowners because air conditioning is an important part of home comfort during Missouri&#8217;s hot, humid summers.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/2026\/10\/heat-pump-efficiency-2-300x200.jpg\" alt=\"Heat Pump Efficiency Ratings Explained\" width=\"300\" height=\"200\" class=\"alignright size-medium wp-image-20843\" srcset=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/2026\/10\/heat-pump-efficiency-2-300x200.jpg 300w, https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/2026\/10\/heat-pump-efficiency-2.jpg 600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_EER2_Understanding_Cooling_Performance\"><\/span>What Is EER2? Understanding Cooling Performance<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>EER2 stands for Energy Efficiency Ratio 2. Like SEER2, it evaluates cooling efficiency, but it measures performance under a specific set of operating conditions rather than across a representative cooling season.<\/p>\n<p>This distinction matters because a heat pump&#8217;s efficiency can change as outdoor temperatures and indoor conditions change.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"EER2_vs_SEER2\"><\/span>EER2 vs. SEER2<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SEER2 provides a seasonal perspective, while EER2 offers a snapshot of cooling performance at a defined test condition.<\/p>\n<p>When comparing equipment:<\/p>\n<ul>\n<li><strong>SEER2<\/strong> helps you compare seasonal cooling efficiency.<\/li>\n<li><strong>EER2<\/strong> helps you compare cooling efficiency at the specified test conditions.<\/li>\n<\/ul>\n<p>Neither rating alone can predict how much electricity your heat pump will use throughout an entire summer. Together, however, they can provide a more complete picture of cooling performance.<\/p>\n<p>For homeowners in the St. Louis region, understanding both ratings can help when evaluating equipment intended to handle periods of sustained summer heat.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_HSPF2_Understanding_Heating_Efficiency\"><\/span>What Is HSPF2? Understanding Heating Efficiency<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>HSPF2 stands for Heating Seasonal Performance Factor 2. It measures a heat pump&#8217;s heating efficiency over a representative heating season under standardized testing conditions.<\/p>\n<p>Because heat pumps provide both heating and cooling, evaluating heating efficiency is just as important as evaluating cooling performance. A model with a strong cooling rating may not necessarily offer the same relative advantage when comparing heating performance.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_to_Compare_HSPF2_Ratings\"><\/span>How to Compare HSPF2 Ratings<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A higher HSPF2 rating indicates greater seasonal heating efficiency under the applicable test conditions.<\/p>\n<p>For example, when comparing otherwise appropriate systems, a heat pump with an HSPF2 rating of 9 has a higher seasonal heating efficiency rating than one rated at 8.<\/p>\n<p>However, HSPF2 does not guarantee a specific level of performance during every winter weather condition. Outdoor temperature, defrost cycles, auxiliary heat use, system sizing, and installation quality all influence real-world operation.<\/p>\n<p>This is particularly important in St. Louis, where winter temperatures can fluctuate considerably. Homeowners should consider how a heat pump performs in colder weather, not just its seasonal rating.<\/p>\n<p>For more information, see our related guide on heat pump cold-weather performance, which can help you understand how outdoor temperatures affect heating operation.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"COP_Another_Way_to_Measure_Heat_Pump_Efficiency\"><\/span>COP: Another Way to Measure Heat Pump Efficiency<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>COP stands for Coefficient of Performance. It compares the amount of heating or cooling delivered by a heat pump with the electrical energy it consumes at a particular operating condition.<\/p>\n<p>For example, a COP of 3 means the system delivers three units of heat energy for every unit of electrical energy it uses under those conditions.<\/p>\n<p>Unlike SEER2 and HSPF2, which provide seasonal performance measures, COP generally describes performance at a specific set of conditions. A heat pump can have different COP values at different outdoor temperatures.<\/p>\n<p>COP can be useful when reviewing technical specifications or comparing performance at particular temperatures. However, most homeowners shopping for residential equipment will encounter SEER2, EER2, and HSPF2 more frequently.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Compare_Heat_Pump_Efficiency_Ratings\"><\/span>How to Compare Heat Pump Efficiency Ratings<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Understanding individual ratings is helpful, but choosing a system requires looking at the complete picture. Here are several factors to consider when comparing heat pumps for your home.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Compare_the_Same_Types_of_Ratings\"><\/span>1. Compare the Same Types of Ratings<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If you are interested in <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-energy-savings\/\">heat pump energy savings<\/a>, make sure you&#8217;re comparing SEER2 with SEER2, EER2 with EER2, and HSPF2 with HSPF2. Comparing different rating types won&#8217;t provide a meaningful, direct comparison.<\/p>\n<p>Also, check that you&#8217;re reviewing specifications for the complete system configuration being proposed. Performance can vary depending on the indoor and outdoor equipment paired together.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Consider_Both_Heating_and_Cooling\"><\/span>2. Consider Both Heating and Cooling<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A heat pump needs to keep your home comfortable in both summer and winter. Review the cooling and heating ratings together instead of selecting a model based on its highest advertised number.<\/p>\n<p>For St. Louis homeowners, balanced performance across both seasons can be particularly important. Learn more about <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/are-heat-pumps-worth-it-in-missouri\/\">heat pumps in Missouri weather<\/a>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Look_Beyond_the_Efficiency_Numbers\"><\/span>3. Look Beyond the Efficiency Numbers<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A high-rated heat pump may not be the best choice for every home. Equipment sizing, ductwork condition, insulation, air leakage, thermostat controls, and installation quality all affect performance.<\/p>\n<p>An oversized or undersized system can create comfort problems even when the equipment itself has strong efficiency ratings.<\/p>\n<p>If you&#8217;re unfamiliar with equipment sizing, our related guide on <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-sizing-2\/\">heat pump sizing<\/a> can help explain why matching system capacity to your home matters.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Consider_Your_Homes_Heating_and_Cooling_Needs\"><\/span>4. Consider Your Home&#8217;s Heating and Cooling Needs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Your home&#8217;s layout, existing ductwork, insulation, and comfort concerns should influence your decision. A ductless mini-split system, for example, may be appropriate for certain homes or additions, while a ducted system may better suit others.<\/p>\n<p>Our <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/types-of-heat-pumps\/\">types of heat pumps<\/a> guide explains the main system options and how they differ.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_Review_the_Complete_Equipment_Specifications\"><\/span>5. Review the Complete Equipment Specifications<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Efficiency ratings are only part of an equipment comparison. You may also want to review heating capacity at different outdoor temperatures, sound levels, available controls, and compatibility with your existing HVAC setup.<\/p>\n<p>If you&#8217;re replacing an older system, our guide to <a href=\"https:\/\/www.galmicheandsons.com\/heat-pump-replacement.html\">heat pump replacement<\/a> can help you understand the broader decisions involved.<\/p>\n<hr>\n<h2><span class=\"ez-toc-section\" id=\"Common_Mistakes_Homeowners_Make_When_Comparing_Efficiency_Ratings\"><\/span>Common Mistakes Homeowners Make When Comparing Efficiency Ratings<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Heat pump ratings can be useful, but a few common misunderstandings can make equipment shopping more confusing than it needs to be.<\/p>\n<ul>\n<li><strong>Focusing on one number:<\/strong> A high SEER2 rating doesn&#8217;t automatically mean a system is the best choice for winter heating. Review heating and cooling performance together.<\/li>\n<li><strong>Assuming a higher rating guarantees lower bills:<\/strong> Ratings are based on standardized testing, not your home&#8217;s exact conditions. Your energy use will depend on weather, operating habits, home efficiency, and system setup.<\/li>\n<li><strong>Overlooking installation quality:<\/strong> Even well-rated equipment may not perform as intended if it is improperly sized, installed, or configured.<\/li>\n<li><strong>Ignoring cold-weather performance:<\/strong> Seasonal heating ratings are useful, but St. Louis homeowners should also consider how a heat pump operates during colder periods.<\/li>\n<li><strong>Choosing equipment without evaluating the home:<\/strong> The right system depends on more than the model number. A professional assessment can help identify issues with ductwork, insulation, and heating or cooling capacity before you commit to new equipment.<\/li>\n<\/ul>\n<p>At Galmiche &#038; Sons, we help St. Louis homeowners evaluate their HVAC needs and understand their options so they can make informed decisions about heat pump installation and replacement.<\/p>\n<hr>\n<h2><span class=\"ez-toc-section\" id=\"Compare_Heat_Pump_Options_With_Galmiche_Sons\"><\/span>Compare Heat Pump Options With Galmiche &#038; Sons<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Understanding heat pump efficiency ratings can make it easier to compare equipment, ask informed questions, and choose a system that fits your home&#8217;s needs. However, the best choice involves more than selecting the model with the highest number. You also need to consider your home&#8217;s layout, heating and cooling requirements, and the weather conditions your system will encounter throughout the year.<\/p>\n<p>Galmiche &#038; Sons helps homeowners throughout the St. Louis area explore heat pump options, understand their HVAC needs, and make informed decisions about installation and replacement.<\/p>\n<p><strong>Ready to learn more about heat pump efficiency or explore your options?<\/strong> Contact Galmiche &#038; Sons to discuss your home&#8217;s heating and cooling needs and <a href=\"https:\/\/www.galmicheandsons.com\/service-request.php\">schedule professional HVAC service<\/a> in the St. Louis area.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Choosing a new heat pump involves more than comparing brands, features, and installation prices. You also need to understand how efficiently different systems heat and cool your home. Heat pump efficiency ratings provide a standardized way to compare equipment, helping you make a more informed decision when planning a replacement or installation. If you&#8217;re researching heat pumps for your St. Louis home, you&#8217;ll likely encounter terms such as SEER2, EER2, and HSPF2. These ratings may look confusing at first, but &hellip; <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Heat Pump Efficiency Ratings Explained: A Homeowner&#8217;s Guide<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":20842,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mbp_gutenberg_autopost":false,"footnotes":""},"categories":[19,59,26,38],"tags":[],"class_list":["post-20817","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-energy-efficiency","category-heat-pump-tips","category-heat-pumps","category-heating-cooling-faqs"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Heat Pump Efficiency Ratings Explained | St. Louis HVAC Tips<\/title>\n<meta name=\"description\" content=\"Learn what SEER2, EER2, and HSPF2 mean and how to compare heat pump efficiency ratings when choosing a system for your St. Louis home\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Heat Pump Efficiency Ratings Explained | St. Louis HVAC Tips\" \/>\n<meta property=\"og:description\" content=\"Learn what SEER2, EER2, and HSPF2 mean and how to compare heat pump efficiency ratings when choosing a system for your St. Louis home\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/heat-pump-efficiency-ratings\/\" \/>\n<meta property=\"og:site_name\" content=\"St. Louis HVAC Tips - Galmiche &amp; 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