{"product_id":"majestic-4-inch-uninsulated-flex-duct-ud4","title":"Majestic 4-inch Uninsulated Flex Duct UD4","description":"\u003cp\u003eThe Majestic UD4 is 4 in. (102 mm) uninsulated flex duct for an outside combustion air kit. Majestic lists the UD4 in the outside air components of the Biltmore SB60\/SB80, Cottagewood and Designer DSR42 installation manuals. NYC does not allow new wood-burning fireplaces (Local Law 38 of 2015), so these parts are for installs outside the five boroughs.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e4 in. (102 mm) uninsulated flex duct\u003c\/li\u003e\n\u003cli\u003eCarries outside combustion air to the fireplace\u003c\/li\u003e\n\u003cli\u003eListed in the Biltmore SB60\/SB80, Cottagewood and Designer DSR42 manuals\u003c\/li\u003e\n\u003cli\u003eGenuine Majestic part\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eUD4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eUninsulated outside air flex duct\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e4 in. (102 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003etwo 42 in. (1065 mm) sections, per listing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003eMajestic Biltmore SB60\/SB80, Cottagewood and Designer DSR42 (manual duct lists)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e716032007657\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" alt=\"Majestic Authorized Dealer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0489\/1541\/5207\/files\/MajesticDealer_240x240_240x240_ab1546c9-0a17-4a68-8ea2-728f17d4df75.jpg?v=1785324218\" data-mce-style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/p\u003e\u003ch3\u003eWhat Is Included and What You Will Need\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIncluded: Majestic UD4 duct, two 42 in. (1065 mm) sections, per listing\u003c\/li\u003e\n\u003cli\u003eRequired when the outside air kit is installed\u003c\/li\u003e\n\u003cli\u003eRequired: the outside air kit or chimney air kit listed in your manual\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\u003cp\u003eRun the duct as the fireplace manual shows. Have a qualified technician install it per the kit instructions and fireplace manual.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.nycfireplaces.com\/consultation-design\/\"\u003eBook a design consultation\u003c\/a\u003e and we will confirm the part for your fireplace.\u003c\/p\u003e\u003ch3\u003eDocumentation\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0489\/1541\/5207\/files\/Majestic_Biltmore_SB60_SB80_Installation_Manual_4013-300.pdf?v=1791547436\" target=\"_blank\" rel=\"noopener\"\u003eMajestic Biltmore SB60\/SB80 Installation Manual (4013-300)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0489\/1541\/5207\/files\/cottagewood-outdoor-fireplace-install-manual.pdf?v=1787151571\" target=\"_blank\" rel=\"noopener\"\u003eMajestic Cottagewood Installation Manual (4108-901)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0489\/1541\/5207\/files\/DSR42_Installation-Manual.pdf?v=1787151570\" target=\"_blank\" rel=\"noopener\"\u003eMajestic Designer DSR42 Installation Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003ch4\u003eInsulated or uninsulated?\u003c\/h4\u003e\u003cp\u003eInsulated duct limits condensation where the duct crosses conditioned space; follow your manual.\u003c\/p\u003e\u003ch4\u003eIs it required?\u003c\/h4\u003e\u003cp\u003eOnly with the outside air kit.\u003c\/p\u003e\u003cp\u003eRelated reading: \u003ca href=\"https:\/\/nycfireplaceshop.com\/blogs\/news\/wood-burning-fireplaces-legal-nyc\"\u003eAre wood-burning fireplaces legal in NYC?\u003c\/a\u003e, \u003ca href=\"https:\/\/nycfireplaceshop.com\/blogs\/news\/nyc-fireplace-code-guide\"\u003eNYC fireplace code guide\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eWarranty\u003c\/h3\u003e\u003cp\u003eHearth and Home Technologies limited warranty table 4021-645 (Majestic owner's manuals): purchased replacement parts and optional accessories are covered for 1 year, parts only. Purchase from an authorized HHT dealer is required.\u003c\/p\u003e","brand":"Majestic","offers":[{"title":"Default Title","offer_id":45058619638018,"sku":"UD4","price":58.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0489\/1541\/5207\/files\/majestic-4-inch-uninsulated-flex-duct-ud4-36285408280620.jpg?v=1716089932","url":"https:\/\/nycfireplaceshop.com\/products\/majestic-4-inch-uninsulated-flex-duct-ud4","provider":"NYC Fireplaces \u0026 Outdoor Kitchens","version":"1.0","type":"link"}