{"id":2051,"date":"2025-03-31T14:19:38","date_gmt":"2025-03-31T14:19:38","guid":{"rendered":"https:\/\/www.elmak.de\/?page_id=2051"},"modified":"2025-03-31T14:30:37","modified_gmt":"2025-03-31T14:30:37","slug":"heizungentl","status":"publish","type":"page","link":"https:\/\/www.elmak.de\/en\/heizungentl\/","title":{"rendered":"Purging Central Heating"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2051\" class=\"elementor elementor-2051\" data-elementor-settings=\"{&quot;ha_cmc_init_switcher&quot;:&quot;no&quot;}\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-bu71rau elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bu71rau\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-p4b3n7m\" data-id=\"p4b3n7m\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-73gt1to areas-box elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"73gt1to\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"#\" tabindex=\"-1\"><img fetchpriority=\"high\" decoding=\"async\" width=\"182\" height=\"299\" src=\"https:\/\/www.elmak.de\/wp-content\/uploads\/2025\/03\/HausMag.png\" class=\"attachment-full size-full wp-image-2053\" alt=\"\" srcset=\"https:\/\/www.elmak.de\/wp-content\/uploads\/2025\/03\/HausMag.png 182w, https:\/\/www.elmak.de\/wp-content\/uploads\/2025\/03\/HausMag-7x12.png 7w\" sizes=\"(max-width: 182px) 100vw, 182px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><h2 class=\"elementor-image-box-title\"><a href=\"#\">Purge Central Heating<\/a><\/h2><p class=\"elementor-image-box-description\">that is what people do.  But is that right?\n<br><br>\n<b>The \"rule\" is for example:<\/b><br><ul>Note down the pressure <br>let the air out up top <br>fill water from below until the pressure is ok. <br><\/ul>\nIs it ok?<br>\n <br>\n<b>No nothing is ok!<\/b><br>\nWhy?<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-866e50d\" data-id=\"866e50d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2ca2dda areas-box elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"2ca2dda\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"#\" tabindex=\"-1\"><img decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/www.elmak.de\/wp-content\/uploads\/2023\/12\/HeizungCollagePAZeichnung_400x400.png\" class=\"attachment-full size-full wp-image-1706\" alt=\"\" srcset=\"https:\/\/www.elmak.de\/wp-content\/uploads\/2023\/12\/HeizungCollagePAZeichnung_400x400.png 400w, https:\/\/www.elmak.de\/wp-content\/uploads\/2023\/12\/HeizungCollagePAZeichnung_400x400-300x300.png 300w, https:\/\/www.elmak.de\/wp-content\/uploads\/2023\/12\/HeizungCollagePAZeichnung_400x400-100x100.png 100w, https:\/\/www.elmak.de\/wp-content\/uploads\/2023\/12\/HeizungCollagePAZeichnung_400x400-150x150.png 150w, https:\/\/www.elmak.de\/wp-content\/uploads\/2023\/12\/HeizungCollagePAZeichnung_400x400-12x12.png 12w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><h2 class=\"elementor-image-box-title\"><a href=\"#\">Why?<\/a><\/h2><p class=\"elementor-image-box-description\">.. because for the regulated operation (of the central heating system) the setup pressure equilibirum is broken.  The system will become an air pump and water fountain as the air buffer shrinks and the water takes up more volume.  This leads to the well known problems in heating circuits.  These are the results of working against the laws of thermodynamics.\n<br><br>\nBefore you decide to buy a new water warmer, we recommend you:<br><ul>- get independent advice<br>- to stabilize the operation of the water system <br>- to think that up to 30% of the operational costs can be reduced by improved efficiency. <\/ul> <\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-phobwjz\" data-id=\"phobwjz\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Heizung entl\u00fcften so macht man es (angeblich) richtig &#8211; stimmt das? Die \u201dVorschrift\u201c sei z.B.: \u25aa Manometerstand merken, \u25aaoben entl\u00fcften, \u25aaunten Wasser nachf\u00fcllen, bis Druck o.k. alles klar? nichts ist klar! warum?,,, Warum? &#8230;weil so das f\u00fcr den geregelten Betrieb eingestellte dynamische Druckgleichgewicht zerst\u00f6rt wird. Die Heizung wird zwangsl\u00e4ufig zur Luftpumpe und zum Wasserspeier, denn [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ocean_post_layout":"full-screen","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"0","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","footnotes":""},"class_list":["post-2051","page","type-page","status-publish","hentry","entry","owp-thumbs-layout-horizontal","owp-btn-normal","owp-tabs-layout-horizontal","has-no-thumbnails","has-product-nav"],"_links":{"self":[{"href":"https:\/\/www.elmak.de\/en\/wp-json\/wp\/v2\/pages\/2051","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.elmak.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.elmak.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.elmak.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.elmak.de\/en\/wp-json\/wp\/v2\/comments?post=2051"}],"version-history":[{"count":4,"href":"https:\/\/www.elmak.de\/en\/wp-json\/wp\/v2\/pages\/2051\/revisions"}],"predecessor-version":[{"id":2056,"href":"https:\/\/www.elmak.de\/en\/wp-json\/wp\/v2\/pages\/2051\/revisions\/2056"}],"wp:attachment":[{"href":"https:\/\/www.elmak.de\/en\/wp-json\/wp\/v2\/media?parent=2051"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}