{"product_id":"viessmann-7868886-door-refractory-insulating-ring","title":"Viessmann 7868886 Door Refractory Insulating Ring","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VIESSMANN 7868886 is a door refractory insulating ring designed for use in high-efficiency condensing gas boilers. This component provides thermal insulation at the boiler door assembly, protecting surrounding materials from combustion heat and helping maintain combustion chamber integrity. It is a direct OEM-style replacement part installed by licensed HVAC technicians and boiler service professionals during routine maintenance, burner service, or combustion chamber inspection.\u003c\/p\u003e\u003cp\u003eThis insulating ring is suited for residential and light commercial gas boiler applications where door refractory components must be replaced due to wear, cracking, or deterioration over time. Proper sealing and insulation at the boiler door is critical to maintaining combustion efficiency and preventing heat loss through the door assembly.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eProvides thermal insulation at the boiler door assembly to protect against combustion heat\u003c\/li\u003e\n\u003cli\u003eOEM-specified replacement part for VIESSMANN condensing gas boiler models\u003c\/li\u003e\n\u003cli\u003eMaintains combustion chamber integrity during boiler operation\u003c\/li\u003e\n\u003cli\u003eDesigned for straightforward replacement during scheduled boiler maintenance or burner service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with VIESSMANN B1HE-150, B1HE-199, B2HE-150, B2HE-199, and B1KE-199 gas boilers.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified HVAC technician or licensed boiler service professional. Before beginning work, shut down the boiler, isolate the gas supply, and allow all components to cool completely. Inspect the door gasket and surrounding refractory components for additional wear while the door assembly is open. Follow the boiler manufacturer service documentation and all applicable local mechanical and gas codes during reinstallation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type\u003c\/strong\u003e: Door Refractory Insulating Ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Gas Boiler Door Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VIESSMANN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7868886\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VIESSMANN","offers":[{"title":"Default Title","offer_id":51267839328562,"sku":"7868886","price":270.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/308912215.jpg?v=1780691832","url":"https:\/\/voomisupply.com\/products\/viessmann-7868886-door-refractory-insulating-ring","provider":"Voomi Supply","version":"1.0","type":"link"}