{"id":2990,"date":"2025-03-26T08:57:10","date_gmt":"2025-03-26T08:57:10","guid":{"rendered":"https:\/\/heatpumpingtechnologies.org\/annex62\/?page_id=2990"},"modified":"2025-09-12T14:40:43","modified_gmt":"2025-09-12T14:40:43","slug":"de011-wholly-renovated-with-apartment-transfer-station","status":"publish","type":"case_studies","link":"https:\/\/heatpumpingtechnologies.org\/project62\/case-studies\/de011-wholly-renovated-with-apartment-transfer-station\/","title":{"rendered":"DE011 Wholly Renovated with Apartment Transfer Station"},"content":{"rendered":"\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"container container--no-margin\">\n<p class=\"wp-block-paragraph \" style=\"font-size:25px\">Cuxhaven, Germany<\/p>\n<\/div>\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"container container--no-margin\">\n<p class=\"wp-block-paragraph \">The \u201c<em>Eigent\u00fcmergemeinschaft Cuxhaven-D\u00f6se<\/em>\u201d (owners\u2019 association Cuxhaven-D\u00f6se) initiated a full refurbishment of a two-part multi-family building (MFB). It had originally been built in the span of 1935 to 1938 and received a complete thermal renovation.<\/p>\n<\/div>\n\n<div class=\"container container--no-margin\">\n<p class=\"wp-block-paragraph \">The External Thermal Insulation Composite System (envelope\/fa\u00e7ade) has been brought up to date, the thermal insulation of the roof was renewed, all the windows and doors were replaced, and electrical sun blinds were installed. All these measures in combination led to the building conforming with the <em>Effizienzhaus 70<\/em> standard.<\/p>\n<\/div>\n\n<div class=\"container container--no-margin\">\n<p class=\"wp-block-paragraph \">The statics of the building had to be adapted so that the added weight from the underfloor heating systems in the upper level apartments would not pose a threat.<\/p>\n<\/div>\n\n<div class=\"container\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1170\" height=\"960\" src=\"https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2025\/03\/de011-building.jpg\" alt=\"\" class=\"wp-image-2991\" srcset=\"https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2025\/03\/de011-building.jpg 1170w, https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2025\/03\/de011-building-300x246.jpg 300w, https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2025\/03\/de011-building-1024x840.jpg 1024w, https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2025\/03\/de011-building-768x630.jpg 768w, https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2025\/03\/de011-building-400x328.jpg 400w\" sizes=\"auto, (max-width: 1170px) 100vw, 1170px\" \/><figcaption class=\"wp-element-caption\">Credits: bwp Bundesverband W\u00e4rmepumpe<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n<div class=\"container container--no-margin\">\n<p class=\"wp-block-paragraph \"><strong>Lessons learned<\/strong><\/p>\n<\/div>\n\n<div class=\"container container--no-margin\">\n<ul class=\"wp-block-list\">\n<li>Static reconfiguration of the building was necessary in order to accommodate the additional weight from the underfloor heating in the upper levels.<\/li>\n<\/ul>\n<\/div>\n\n<div class=\"container container--no-margin\">\n<p class=\"wp-block-paragraph \"><strong>Key facts<\/strong><\/p>\n<\/div>\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"container container--no-margin\">\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td><strong>Building<\/strong><\/td><td><\/td><td><strong>Heat Pump and Source<\/strong><\/td><td><\/td><\/tr><tr><td>Location<\/td><td><em>Cuxhaven, Germany<\/em><\/td><td>Number of HP<\/td><td><em>2 (1 for each <\/em><br><em>building half)<\/em><\/td><\/tr><tr><td>Construction<\/td><td><em>1938<\/em><\/td><td>Operation mode<\/td><td><em>monoenergetic<\/em><\/td><\/tr><tr><td>Retrofit<\/td><td><em>2023<\/em><\/td><td>Heat source<\/td><td><em>air<\/em><\/td><\/tr><tr><td>No. of buildings<\/td><td><em>1<\/em><\/td><td>Type of system<\/td><td><em>central<\/em><\/td><\/tr><tr><td>Level of insulation<\/td><td><em>good<\/em><\/td><td>Model<\/td><td><em>NIBE F2120-16<\/em><\/td><\/tr><tr><td>Heated space<\/td><td><em>560 m\u00b2<\/em><\/td><td>Installed power<\/td><td><em>2 x 16 kW<\/em><\/td><\/tr><tr><td><\/td><td><\/td><td>Heat distribution<\/td><td><em>underfloor<\/em><\/td><\/tr><tr><td><strong>Other information<\/strong><\/td><td><\/td><td><strong>DHW<\/strong><\/td><td><\/td><\/tr><tr><td>Climate Zone<\/td><td><em>Cfb<\/em><\/td><td>Apartment provision<\/td><td><em>Fresh Water<br>Stations<\/em><\/td><\/tr><tr><td>SCOP (35\/55)<\/td><td><em>5.1\/3.9*<\/em><\/td><td><\/td><td><\/td><\/tr><tr><td>Refrigerant<\/td><td><em>R410A<\/em><\/td><td><\/td><td><\/td><\/tr><tr><td><\/td><td><\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\"><sub>*<em>according to NIBE product flyer<\/em><\/sub><\/figcaption><\/figure>\n<\/div>\n\n<div class=\"container container--no-margin\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<\/div><\/div>\n\n\n<div class=\"container\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1021\" height=\"756\" src=\"https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2025\/03\/de0011-scheme.png\" alt=\"\" class=\"wp-image-2992\" srcset=\"https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2025\/03\/de0011-scheme.png 1021w, https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2025\/03\/de0011-scheme-300x222.png 300w, https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2025\/03\/de0011-scheme-768x569.png 768w, https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2025\/03\/de0011-scheme-400x296.png 400w\" sizes=\"auto, (max-width: 1021px) 100vw, 1021px\" \/><\/figure>\n<\/div>\n\n<div class=\"container container--no-margin\">\n<p class=\"wp-block-paragraph \"><strong>Description of the technical concept<\/strong><\/p>\n<\/div>\n\n<div class=\"container container--no-margin\">\n<p class=\"wp-block-paragraph \">The building is divided into two halves. For each, a central air-to-water heat pump with a control unit was installed and connected to a 700l buffer storage.<\/p>\n<\/div>\n\n<div class=\"container container--no-margin\">\n<p class=\"wp-block-paragraph \">For domestic hot water (DHW), each single dwelling was equipped with <em>Clage<\/em> fresh-water transfer stations.<\/p>\n<\/div>\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"container container--no-margin\">\n<div class=\"wp-block-buttons is-horizontal is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-b989473c wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50 has-custom-font-size is-style-outline has-medium-font-size is-style-outline--1\" style=\"text-transform:none\"><a class=\"wp-block-button__link has-vivid-cyan-blue-color has-white-background-color has-text-color has-background has-text-align-center wp-element-button\" href=\"https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2025\/03\/de011fact-sheet-cuxhaven.pdf\" style=\"border-radius:5px\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"84\" class=\"wp-image-2196\" style=\"width: 300px;\" src=\"https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2024\/02\/fact-sheet-button-pic.png\" alt=\"\" srcset=\"https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2024\/02\/fact-sheet-button-pic.png 845w, https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2024\/02\/fact-sheet-button-pic-300x84.png 300w, https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2024\/02\/fact-sheet-button-pic-768x215.png 768w, https:\/\/heatpumpingtechnologies.org\/content\/uploads\/sites\/75\/2024\/02\/fact-sheet-button-pic-400x112.png 400w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/div>\n<\/div>\n<\/div>\n\n<div class=\"container container--no-margin\">\n<p class=\"has-text-align-center wp-block-paragraph \"><strong>DE011 &#8211; <strong><strong>Wholly Renovated with Apartment Transfer Station<\/strong><\/strong><\/strong><\/p>\n<\/div><\/div>\n<\/div>\n\n\n<div class=\"container container--no-margin\">\n<p class=\"wp-block-paragraph \">Case study delivered by: Bundesverband W\u00e4rmepumpe bwp <a href=\"https:\/\/b2electrification.org\/ravens-crossing-how-community-went-all-electric\"><\/a><a href=\"https:\/\/www.waermepumpe.de\/presse\/referenzobjekte\/bwp-datenbank\/vom-fossilen-fernwaermenetz-zur-gruenen-quartiersloesung\/\"><\/a><a href=\"https:\/\/www.waermepumpe.de\/presse\/referenzobjekte\/bwp-datenbank\/hybridloesung-fuer-zwei-hamburger-mehrfamilienhaeuser\/\"><\/a><a href=\"https:\/\/www.waermepumpe.de\/presse\/referenzobjekte\/bwp-datenbank\/mehrfamilienhaus-cuxhaven\/\">BWP-Datenbank | Bundesverband W\u00e4rmepumpe (BWP) e.V.<\/a><\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Cuxhaven, Germany The \u201cEigent\u00fcmergemeinschaft Cuxhaven-D\u00f6se\u201d (owners\u2019 association Cuxhaven-D\u00f6se) initiated a full refurbishment of a two-part multi-family building (MFB). It had&#8230;<\/p>\n","protected":false},"author":41,"featured_media":0,"menu_order":0,"template":"","filters":[],"markets":[24],"applications":[7,41],"class_list":["post-2990","case_studies","type-case_studies","status-publish","hentry","markets-germany","applications-buildings","applications-multi-family-buildings"],"acf":[],"_links":{"self":[{"href":"https:\/\/heatpumpingtechnologies.org\/project62\/wp-json\/wp\/v2\/case_studies\/2990","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/heatpumpingtechnologies.org\/project62\/wp-json\/wp\/v2\/case_studies"}],"about":[{"href":"https:\/\/heatpumpingtechnologies.org\/project62\/wp-json\/wp\/v2\/types\/case_studies"}],"author":[{"embeddable":true,"href":"https:\/\/heatpumpingtechnologies.org\/project62\/wp-json\/wp\/v2\/users\/41"}],"version-history":[{"count":3,"href":"https:\/\/heatpumpingtechnologies.org\/project62\/wp-json\/wp\/v2\/case_studies\/2990\/revisions"}],"predecessor-version":[{"id":3017,"href":"https:\/\/heatpumpingtechnologies.org\/project62\/wp-json\/wp\/v2\/case_studies\/2990\/revisions\/3017"}],"wp:attachment":[{"href":"https:\/\/heatpumpingtechnologies.org\/project62\/wp-json\/wp\/v2\/media?parent=2990"}],"wp:term":[{"taxonomy":"filters","embeddable":true,"href":"https:\/\/heatpumpingtechnologies.org\/project62\/wp-json\/wp\/v2\/filters?post=2990"},{"taxonomy":"markets","embeddable":true,"href":"https:\/\/heatpumpingtechnologies.org\/project62\/wp-json\/wp\/v2\/markets?post=2990"},{"taxonomy":"applications","embeddable":true,"href":"https:\/\/heatpumpingtechnologies.org\/project62\/wp-json\/wp\/v2\/applications?post=2990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}