{"product_id":"638-124","title":"638-124","description":"This 4-inch by 6-inch B-Vent length is a high-quality double-wall gas vent pipe designed for the safe and efficient exhaust of Category I natural gas or liquid propane (LP) appliances. Engineered for durability, this Type B vent component features an aluminum inner liner to resist corrosion and a galvanized steel outer casing for maximum structural integrity. The double-wall construction creates an insulating air space that helps maintain high flue gas temperatures, ensuring a strong draft while minimizing heat transfer to nearby combustible materials. Ideal for short extensions or connecting HVAC components, this metal venting piece is a critical part of residential and commercial heating systems. It provides a secure fit for venting systems in attic spaces, crawlspaces, or utility rooms, making it a reliable choice for professional contractors and DIY appliance repair projects.\u003cbr\u003e\nType: Metal Venting \/ Type B Gas Vent\u003cbr\u003e\nSize: 4-inch Diameter x 6-inch Length\u003cbr\u003e\nDimensions: 6 inches × 4 inches × 4 inches\u003cbr\u003e\nApplication: Used for venting Category I natural gas and liquid propane appliances, including furnaces, water heaters, and boilers. Suitable for residential and commercial HVAC ventilation systems.\u003cbr\u003e\nSpecifications: Double-wall construction; Aluminum inner wall; Galvanized steel outer wall; Type B Gas Vent classification; Twist-lock or snap-lock connection system.","brand":"BCFurnace","offers":[{"title":"4\" X 6\" B-VENT LENGTH \/ 638-124","offer_id":49018448707869,"sku":null,"price":39.31,"currency_code":"CAD","in_stock":true},{"title":"4\" X 6\" B-VENT LENGTH \/ 200456","offer_id":49018448773405,"sku":null,"price":39.31,"currency_code":"CAD","in_stock":true},{"title":"4\" X 6\" B-VENT LENGTH \/ 5520506","offer_id":49018448740637,"sku":null,"price":39.31,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/36130b490d1b48a3afaa5414a33a40ef.webp?v=1773967134","url":"https:\/\/bcfurnace.myshopify.com\/products\/638-124","provider":"BCFurnace","version":"1.0","type":"link"}