{"product_id":"imperial-mfg-bm0241-cast-iron-damper-3-inches","title":"Imperial Mfg BM0241 Cast Iron Damper 3 Inches","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe IMPERIAL MFG GROUP USA INC BM0241 is a 3-inch cast iron barometric damper designed to regulate draft in oil-fired and gas-fired heating systems. Cast iron construction provides durability and resistance to the high-temperature flue gas environment found in boilers, furnaces, and water heaters. The damper works by opening or closing in response to changes in flue pressure, helping maintain consistent combustion efficiency throughout the heating cycle. HVAC technicians and plumbers install this type of damper on the flue pipe between the appliance and the chimney connector.\u003c\/p\u003e\n\u003cp\u003eThis damper is suited for residential and light commercial heating applications where draft control on a 3-inch flue is required. It is typically installed on oil-fired boilers, gas boilers, and atmospheric gas furnaces that require barometric draft regulation. The unit of measure is each, and the part is packaged in quantities of 12, making it practical for wholesalers and service shops maintaining stock for repeat installs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e3-inch nominal size fits standard 3-inch flue pipe connections\u003c\/li\u003e\n\u003cli\u003eCast iron construction withstands continuous high-temperature flue gas exposure\u003c\/li\u003e\n\u003cli\u003eBarometric design automatically responds to flue pressure changes to stabilize draft\u003c\/li\u003e\n\u003cli\u003eSold individually; available in case quantity of 12 for stocking purposes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation barometric damper for residential and light commercial heating appliances equipped with 3-inch flue connections.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician or qualified service professional. Shut down the heating appliance and allow the flue system to cool completely before beginning work. The damper must be installed per the appliance manufacturer instructions and applicable codes including the International Fuel Gas Code (IFGC). Proper draft adjustment after installation is critical to safe and efficient appliance operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Size\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3.96 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 12\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: IMPERIAL MFG GROUP USA INC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: BM0241\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IMPERIAL","offers":[{"title":"Default Title","offer_id":51558992871730,"sku":"BM0241","price":74.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b753744d5f4aadad3d50ae62f8b0a55d_4030b557-7e84-47a7-8a33-141b5817c89f.jpg?v=1786425147","url":"https:\/\/voomisupply.com\/products\/imperial-mfg-bm0241-cast-iron-damper-3-inches","provider":"Voomi Supply","version":"1.0","type":"link"}