{"id":7787,"date":"2026-09-07T10:13:34","date_gmt":"2026-09-07T02:13:34","guid":{"rendered":"https:\/\/www.china-heatpump.com\/?post_type=heatpump_faqs&#038;p=7787"},"modified":"2026-09-07T10:14:30","modified_gmt":"2026-09-07T02:14:30","slug":"what-cop-value-is-good-for-a-domestic-hot-water-heat-pump","status":"publish","type":"heatpump_faqs","link":"https:\/\/www.china-heatpump.com\/nl\/heatpump_faqs\/what-cop-value-is-good-for-a-domestic-hot-water-heat-pump\/","title":{"rendered":"What COP value is good for a domestic hot\u2011water heat pump?"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p>COP (Coefficient of Performance) indicates how efficiently a heat\u2011pump water\u2011heater converts electricity into heat output. A higher COP means lower energy consumption for hot\u2011water production.<\/p>\n<p>Under standard test conditions (air temperature 20\u202f\u00b0C), a decent domestic hot\u2011water heat pump should reach a COP of at least 3.0. Premium\u2011grade models can achieve COP 3.5\u20114.2. It is worth noting that COP drops as ambient temperature falls. At low temperatures around 7\u202f\u00b0C, a reliable unit should still maintain COP above 2.6.<\/p>\n<p>COP figures vary according to test standards, so always check which certification standard the data follows. For Kolant domestic hot\u2011water heat pumps, optimized compressor systems deliver stable high\u2011COP performance across seasonal temperature changes. The EVI equipped versions preserve acceptable heating efficiency even in cold climates, avoiding sharp efficiency decline in winter.<\/p>\n<p>Kolant&#8217;s heat pump water heater&#8217;s cop is 2.92~4.00, meet the requirements of the customer.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"categories":[],"faqcat":[397],"class_list":["post-7787","heatpump_faqs","type-heatpump_faqs","status-publish","hentry","faqcat-heat-pump-faqs"],"_links":{"self":[{"href":"https:\/\/www.china-heatpump.com\/nl\/wp-json\/wp\/v2\/heatpump_faqs\/7787","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.china-heatpump.com\/nl\/wp-json\/wp\/v2\/heatpump_faqs"}],"about":[{"href":"https:\/\/www.china-heatpump.com\/nl\/wp-json\/wp\/v2\/types\/heatpump_faqs"}],"version-history":[{"count":1,"href":"https:\/\/www.china-heatpump.com\/nl\/wp-json\/wp\/v2\/heatpump_faqs\/7787\/revisions"}],"predecessor-version":[{"id":7788,"href":"https:\/\/www.china-heatpump.com\/nl\/wp-json\/wp\/v2\/heatpump_faqs\/7787\/revisions\/7788"}],"wp:attachment":[{"href":"https:\/\/www.china-heatpump.com\/nl\/wp-json\/wp\/v2\/media?parent=7787"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.china-heatpump.com\/nl\/wp-json\/wp\/v2\/categories?post=7787"},{"taxonomy":"faqcat","embeddable":true,"href":"https:\/\/www.china-heatpump.com\/nl\/wp-json\/wp\/v2\/faqcat?post=7787"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}