{"product_id":"mill-rose-84210-horsehair-boiler-flue-brush-42-inches","title":"Mill-rose 84210 Horsehair Boiler Flue Brush 42 Inches","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe MILL-ROSE 84210 is a horsehair boiler flue brush designed for cleaning boiler flue passages and heat exchanger tubes in residential and light commercial heating systems. Measuring 1.5 inches inner diameter by 1.125 inches outer diameter with an overall length of 42 inches, this brush reaches deep into flue sections to remove soot, scale, and combustion deposits. The horsehair bristle construction provides firm but controlled scrubbing action suited to cast iron and steel boiler flue surfaces. HVAC technicians and boiler service professionals use this brush during annual tune-ups and combustion efficiency inspections.\u003c\/p\u003e\u003cp\u003eThis flue brush is used on boiler systems where thorough flue cleaning is required to maintain heat transfer efficiency and safe draft conditions. The 42-inch length allows access through standard boiler flue sections without additional extensions in many installations. The 1.5-inch ID and 1.125-inch OD sizing fits the specific flue passage dimensions called out for compatible Weil-McLain boiler models. It ships in a packaging quantity of 12, making it suitable for service contractors stocking brushes for a full season of boiler tune-ups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1.5-inch inner diameter and 1.125-inch outer diameter sized for specific boiler flue passages\u003c\/li\u003e\n\u003cli\u003e42-inch overall length for deep flue access without extensions in many applications\u003c\/li\u003e\n\u003cli\u003eHorsehair bristles provide firm scrubbing action on cast iron and steel flue surfaces\u003c\/li\u003e\n\u003cli\u003eSold in a case quantity of 12, practical for service contractors\u003c\/li\u003e\n\u003cli\u003eRemoves soot, scale, and combustion deposits to support combustion efficiency and draft performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eSpecified for use on Weil-McLain boilers requiring a 1.5-inch ID by 1.125-inch OD flue brush with a 42-inch reach.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eBoiler flue cleaning is performed by licensed HVAC technicians or qualified boiler service professionals. Always shut down the boiler and allow all flue surfaces to cool completely before inserting any brush into the flue passages. Work in accordance with the boiler manufacturer service manual and applicable local codes. Dispose of collected combustion debris per local environmental requirements and inspect the flue for corrosion or damage while the passages are accessible.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrush Type\u003c\/strong\u003e: Boiler Flue Brush\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBristle Material\u003c\/strong\u003e: Horsehair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 1.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 42 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Boiler Flue Cleaning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging Quantity\u003c\/strong\u003e: 12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3.5 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: MILL-ROSE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 84210\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MILL-ROSE","offers":[{"title":"Default Title","offer_id":51467363516722,"sku":"84210","price":18.11,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/313946323.jpg?v=1783902152","url":"https:\/\/voomisupply.com\/products\/mill-rose-84210-horsehair-boiler-flue-brush-42-inches","provider":"Voomi Supply","version":"1.0","type":"link"}