{"id":2214,"date":"2025-05-30T07:42:04","date_gmt":"2025-05-30T07:42:04","guid":{"rendered":"https:\/\/kretz.cz\/produkt\/kotel-iron-x-20\/"},"modified":"2025-09-12T11:18:36","modified_gmt":"2025-09-12T11:18:36","slug":"kotel-iron-x-20","status":"publish","type":"product","link":"https:\/\/kretz.cz\/en\/product\/kotel-iron-x-20\/","title":{"rendered":"Boiler IRON X 20"},"content":{"rendered":"<p>The IRON X 20 is the most powerful model in the IRON series, designed for larger residential or commercial spaces. It delivers an adjustable output of 20.2 kW, capable of heating areas of up to 250 m\u00b3. Built from durable boiler steel, its grate-free combustion chamber ensures easier maintenance and higher efficiency. With a 100-liter heat exchanger and an integrated cooling loop, it guarantees safe operation even under heavy load. An excellent choice for those seeking a powerful and durable water-heating fireplace.<\/p>","protected":false},"excerpt":{"rendered":"<p>The most powerful model, IRON X 20, delivers an output of 20.2 kW with an efficiency of 89.7%, making it suitable for heating spaces up to 250 m\u00b3.<\/p>","protected":false},"featured_media":2208,"template":"","meta":[],"product_brand":[100],"product_cat":[248,254],"product_tag":[],"class_list":{"0":"post-2214","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-kretz","7":"product_cat-kotle","8":"product_cat-ocelove-kotle-drevo-uhli-kox","9":"pa_bezrostove-topeniste-ne","10":"pa_objem-vodniho-vymeniku-l-263","11":"pa_ochlazovaci-smycka-ano","12":"pa_regulovatelny-vykon-202-kw","13":"pa_sirka-krbu-592-mm","14":"pa_topeniste-zarova-ocel","15":"pa_vytapeny-prostor-m3-251","16":"description-off","18":"first","19":"instock","20":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Kotel IRON X 20 - KRETZ.cz - krby a krbov\u00e1 kamna<\/title>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kotel IRON X 20 - KRETZ.cz - krby a krbov\u00e1 kamna\" \/>\n<meta property=\"og:description\" content=\"Nejv\u00fdkonn\u011bj\u0161\u00ed model IRON X20 s v\u00fdkonem 20,2 kW a \u00fa\u010dinnost\u00ed 89,7 % pro prostory a\u017e 250 m\u00b3.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/kretz.cz\/en\/product\/kotel-iron-x-20\/\" \/>\n<meta property=\"og:site_name\" content=\"KRETZ.cz - krby a krbov\u00e1 kamna\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/krbykretz\/\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-12T11:18:36+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/kretz.cz\/wp-content\/uploads\/2025\/05\/KRETZ-iron.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"458\" \/>\n\t<meta property=\"og:image:height\" content=\"458\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/kretz.cz\/produkt\/kotel-iron-x-20\/\",\"url\":\"https:\/\/kretz.cz\/produkt\/kotel-iron-x-20\/\",\"name\":\"Kotel IRON X 20 - KRETZ.cz - krby a krbov\u00e1 kamna\",\"isPartOf\":{\"@id\":\"https:\/\/kretz.cz\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/kretz.cz\/produkt\/kotel-iron-x-20\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/kretz.cz\/produkt\/kotel-iron-x-20\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/kretz.cz\/wp-content\/uploads\/2025\/05\/KRETZ-iron.jpg\",\"datePublished\":\"2025-05-30T07:42:04+00:00\",\"dateModified\":\"2025-09-12T11:18:36+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/kretz.cz\/produkt\/kotel-iron-x-20\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/kretz.cz\/produkt\/kotel-iron-x-20\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/kretz.cz\/produkt\/kotel-iron-x-20\/#primaryimage\",\"url\":\"https:\/\/kretz.cz\/wp-content\/uploads\/2025\/05\/KRETZ-iron.jpg\",\"contentUrl\":\"https:\/\/kretz.cz\/wp-content\/uploads\/2025\/05\/KRETZ-iron.jpg\",\"width\":458,\"height\":458},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/kretz.cz\/produkt\/kotel-iron-x-20\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\u016f\",\"item\":\"https:\/\/kretz.cz\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Template &#8211; Sidebar &#8211; Archive pages\",\"item\":\"https:\/\/kretz.cz\/template-sidebar-archive-pages\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Kotel IRON X 20\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/kretz.cz\/#website\",\"url\":\"https:\/\/kretz.cz\/\",\"name\":\"KRETZ.cz - krby a krbov\u00e1 kamna\",\"description\":\"Jsme \u010desk\u00e1 spole\u010dnost p\u016fsob\u00edc\u00ed v oblasti v\u00fdroby a stroj\u00edrenstv\u00ed. 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