{"product_id":"hart-cooley-4rp24-b-vent-round-pipe-4-x-24-inches","title":"Hart Cooley 4rp24 B-vent Round Pipe 4 X 24 Inches","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HART COOLEY 4rp24 is a Type B round gas vent pipe section used to route combustion exhaust from gas-fired appliances to the exterior of a structure. This pipe measures 4 inches in diameter and 24 inches in listed length. When joined with adjacent sections or fittings, couplers overlap by 1-3\/8 inches, reducing the assembled length by 1-3\/8 inches from the listed dimension. The outside diameter on 4-inch size pipe is the nominal size plus 1\/2 inch. Minimum clearance to combustibles is 1 inch. Licensed HVAC technicians and plumbers install this pipe as part of a B-vent venting system for natural gas or propane appliances.\u003c\/p\u003e\n\u003cp\u003eThis pipe section is intended for use in residential and light commercial Type B gas venting systems. It is suited for venting gas furnaces, boilers, water heaters, and similar appliances that require a listed double-wall B-vent assembly. It connects with compatible 4-inch B-vent fittings, elbows, caps, and supports in the same product family. A full set of installation instructions is supplied with caps and supports in the system.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-inch nominal diameter with outside diameter equal to nominal size plus 1\/2 inch\u003c\/li\u003e\n  \u003cli\u003e24-inch listed length; assembled length is 1-3\/8 inches less due to coupler overlap\u003c\/li\u003e\n  \u003cli\u003e1-inch minimum clearance to combustibles required during installation\u003c\/li\u003e\n  \u003cli\u003eDesigned for use in Type B double-wall gas venting systems\u003c\/li\u003e\n  \u003cli\u003eCompatible with matching B-vent fittings, caps, and support components in the same diameter series\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style component for residential and light commercial Type B gas vent systems using 4-inch diameter round pipe and fittings. Compatible fittings in the same series cover pipe sizes ranging from 3 inches through 12 inches nominal diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician or plumber in accordance with the appliance manufacturer instructions, NFPA 54 (National Fuel Gas Code), and local mechanical codes. Shut off gas supply and allow the appliance to cool before servicing or extending any venting run. Maintain a minimum 1-inch clearance to all combustible materials throughout the venting path. Follow the full installation instructions included with caps and supports for proper assembly and support spacing.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePipe Diameter\u003c\/strong\u003e: 4 inches nominal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eListed Length\u003c\/strong\u003e: 24 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAssembled Length Deduction\u003c\/strong\u003e: 1-3\/8 inches (due to coupler overlap)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 4.5 inches (nominal size plus 1\/2 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Clearance to Combustibles\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVent Type\u003c\/strong\u003e: Type B Round Gas Vent\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 4rp24\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HART \u0026 COOLEY","offers":[{"title":"Default Title","offer_id":51383394894130,"sku":"4RP24","price":44.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312675021.webp?v=1782595397","url":"https:\/\/voomisupply.com\/products\/hart-cooley-4rp24-b-vent-round-pipe-4-x-24-inches","provider":"Voomi Supply","version":"1.0","type":"link"}