{"product_id":"hart-cooley-6ef12-steep-roof-flange-6-inch-b-vent","title":"Hart Cooley 6ef12 Steep Roof Flange 6 Inch B-vent","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HART COOLEY 6ef12 is a steep roof flange designed for 6-inch B-vent systems installed on roofs with pitches ranging from 6\/12 to 12\/12. This sheet metal flange creates a weathertight seal where the B-vent chimney pipe penetrates the roof deck, keeping moisture out and maintaining proper vent alignment. It is a standard component in gas appliance venting systems — furnaces, water heaters, and boilers — that rely on Type B double-wall vent pipe. HVAC technicians and plumbers install this flange during new construction or when replacing deteriorated roof penetration hardware on steep-pitch residential roofs.\u003c\/p\u003e\u003cp\u003eThis flange is suited for residential applications where the roof pitch falls in the 6\/12 to 12\/12 range, which covers most standard steep-slope roofs. It pairs with 6-inch B-vent pipe and is typically installed during the rough-in phase or as a service replacement when an existing flange shows rust, cracking, or failed sealing. Installers working on natural gas or propane venting systems will find this flange compatible with standard B-vent roof termination assemblies.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFits 6-inch diameter B-vent pipe\u003c\/li\u003e\n\u003cli\u003eCompatible with steep roof pitches from 6\/12 to 12\/12\u003c\/li\u003e\n\u003cli\u003eProvides weathertight roof penetration for gas appliance venting\u003c\/li\u003e\n\u003cli\u003eLightweight at 2.70 pounds for ease of handling on the roof\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement steep roof flange for 6-inch Type B double-wall vent systems on residential gas appliances with roof pitches between 6\/12 and 12\/12.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed HVAC technician or plumber in accordance with NFPA 54 and local mechanical codes governing gas appliance venting. Shut down and allow the connected gas appliance to cool completely before disturbing any vent components. The flange should be properly flashed and sealed against the roof deck using compatible roofing materials to prevent water intrusion. Do not modify the flange opening or compress the vent pipe clearances required by the B-vent manufacturer.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVent Type\u003c\/strong\u003e: B-Vent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoof Pitch Range\u003c\/strong\u003e: 6\/12 to 12\/12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.70 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HART COOLEY\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6ef12\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HART \u0026 COOLEY","offers":[{"title":"Default Title","offer_id":51233682620722,"sku":"6EF12","price":78.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307632969.jpg?v=1780106515","url":"https:\/\/voomisupply.com\/products\/hart-cooley-6ef12-steep-roof-flange-6-inch-b-vent","provider":"Voomi Supply","version":"1.0","type":"link"}