{"product_id":"selkirk-3m24-type-b-double-wall-round-gas-vent-pipe","title":"Selkirk 3M24 Type B Double Wall Round Gas Vent Pipe","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SELKIRK 3M24 is a Type B double-wall round gas vent pipe section designed for venting gas-fired appliances in residential, commercial, and industrial settings. Measuring 3 inches in diameter and 24 inches in length, it features an inner wall of aluminum alloy at 0.012 inches thick and an outer wall of G90 galvanized steel at 0.018 inches thick. The double-wall construction maintains proper flue gas temperatures and reduces heat transfer to combustibles. It ships with a lock tab non-positional lock system that simplifies field assembly and keeps sections securely joined without requiring precise rotational alignment.\u003c\/p\u003e\u003cp\u003eThis vent pipe section is suited for venting natural gas and propane appliances including furnaces, water heaters, and stoves. It is appropriate for residential, commercial, and industrial installations wherever Type B gas vent systems are specified. The non-positional lock tab design is especially practical in tight mechanical rooms or attic runs where rotating pipe sections into alignment is difficult. The 24-inch length works for both straight runs and spacing between fittings in larger vent assemblies.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eType B double-wall construction with aluminum alloy inner wall and G90 galvanized steel outer wall\u003c\/li\u003e\n\u003cli\u003eInner wall thickness of 0.012 inches and outer wall thickness of 0.018 inches for code-compliant durability\u003c\/li\u003e\n\u003cli\u003eLock tab non-positional lock system allows connection at any rotational angle\u003c\/li\u003e\n\u003cli\u003e3 inches diameter by 24 inches length suits common residential and light commercial vent runs\u003c\/li\u003e\n\u003cli\u003eListed to UL 441, ULC S605, and NFPA 54\/211 for verified compliance\u003c\/li\u003e\n\u003cli\u003eCompatible with fired appliances including furnaces, water heaters, and stoves\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with Type B gas vent pipe systems serving residential, commercial, and industrial fired appliances including water heaters, furnaces, and stoves. Part of the SELKIRK RV series.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eType B gas vent pipe is installed by licensed HVAC technicians or plumbers in accordance with NFPA 54, NFPA 211, and local mechanical codes. Shut off gas supply and allow appliances to cool fully before working on any vent section. Maintain required clearances to combustibles as specified on the product listing and in applicable codes. Do not use Type B vent pipe for products or fuel types outside its listed application.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 24 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Type\u003c\/strong\u003e: Double Wall\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Wall Material\u003c\/strong\u003e: Aluminum Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Wall Material\u003c\/strong\u003e: G90 Galvanized Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Wall Thickness\u003c\/strong\u003e: 0.012 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Wall Thickness\u003c\/strong\u003e: 0.018 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVent Type\u003c\/strong\u003e: Type B Gas Vent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLock System\u003c\/strong\u003e: Non-Positional Lock Tab\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: RV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplicable Standards\u003c\/strong\u003e: UL 441, ULC S605, NFPA 54\/211\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Residential, Commercial, Industrial\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SELKIRK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 3M24\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SELKIRK","offers":[{"title":"Default Title","offer_id":51672659755314,"sku":"3M24","price":33.06,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7143b0fbf1c5326a0d59d4bd680f65b8.jpg?v=1787970493","url":"https:\/\/voomisupply.com\/products\/selkirk-3m24-type-b-double-wall-round-gas-vent-pipe","provider":"Voomi Supply","version":"1.0","type":"link"}