{"id":16232,"date":"2026-10-19T15:17:54","date_gmt":"2026-10-19T14:17:54","guid":{"rendered":"https:\/\/ventsystems.de\/lexikon\/nrwg\/"},"modified":"2026-10-19T16:30:30","modified_gmt":"2026-10-19T15:30:30","slug":"nrwg","status":"publish","type":"page","link":"https:\/\/ventsystems.de\/en\/lexikon\/nrwg\/","title":{"rendered":"NRWG (natural smoke and heat exhaust ventilator)"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>NRWG<\/strong> stands for <strong>natural smoke and heat exhaust ventilator<\/strong>. This means a component that removes smoke and heat by natural buoyancy in the event of fire, for example a window or rooflight including its actuator.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Tested as a unit<\/h2>\n\n\n<p class=\"wp-block-paragraph\">An NSHEV is tested as a complete unit: sash, frame, fittings and actuator together. The basis is the European standard <strong>DIN EN 12101-2<\/strong>. Only the tested combination may be sold as an NSHEV with CE marking. If a part is replaced, such as the actuator with a different model, the test no longer automatically applies to this combination.<\/p>\n\n\n<h2 class=\"wp-block-heading\">NSHEV or SHEV \u2013 what is the difference?<\/h2>\n\n\n<ul class=\"wp-block-list\"><li><strong>RWA<\/strong> is the entire system: triggering, control panel, actuators and opening areas.<\/li><li><strong>NRWG<\/strong> is the individual tested exhaust ventilator within this system.<\/li><\/ul>\n\n\n<h2 class=\"wp-block-heading\">What does this mean when replacing an actuator?<\/h2>\n\n\n<p class=\"wp-block-paragraph\">With an NSHEV, the replacement actuator must match the tested combination. Before replacing, clarify with the window manufacturer or installer which actuators are approved. This restriction does not apply to pure ventilation windows without SHEV function. Help with replacement: <a href=\"\/en\/replacing-window-drives\/\">Replacing window drives<\/a>.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Read more<\/h2>\n\n\n<ul class=\"wp-block-list\"><li><a href=\"\/en\/rwa-vs-nrwg-what-is-the-difference\/\">SHEV vs. NSHEV \u2013 the difference in detail<\/a><\/li><li><a href=\"\/en\/dictionary\/rwa\/\">Glossary: SHEV<\/a><\/li><li><a href=\"\/en\/rwa-drives\/\">SHEV actuators from Vent Systems<\/a><\/li><\/ul>\n\n\n<p class=\"wp-block-paragraph\">Not sure which actuator fits? Call us: <a href=\"tel:+494050694631\">040 50694631<\/a> (Mon\u2013Fri 8 am\u20135 pm) or use the <a href=\"\/en\/drive-finder\/\">actuator finder<\/a>.<\/p>\n\n\n<p class=\"wp-block-paragraph\"><a href=\"\/en\/dictionary\/\">\u2190 Back to the glossary<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>NRWG steht f\u00fcr Nat\u00fcrliches Rauch- und W\u00e4rmeabzugsger\u00e4t. Gemeint ist ein Bauteil, das im Brandfall Rauch und W\u00e4rme durch nat\u00fcrlichen Auftrieb abf\u00fchrt, zum Beispiel ein Fenster oder eine Lichtkuppel samt Antrieb. Gepr\u00fcft als Einheit Ein NRWG wird als komplette Einheit gepr\u00fcft: Fl\u00fcgel, Rahmen, Beschl\u00e4ge und Antrieb zusammen. Grundlage ist die europ\u00e4ische Norm DIN EN 12101-2. Nur [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"parent":16230,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"folder":[],"class_list":["post-16232","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/pages\/16232","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/comments?post=16232"}],"version-history":[{"count":1,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/pages\/16232\/revisions"}],"predecessor-version":[{"id":16266,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/pages\/16232\/revisions\/16266"}],"up":[{"embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/pages\/16230"}],"wp:attachment":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/media?parent=16232"}],"wp:term":[{"taxonomy":"folder","embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/folder?post=16232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}