{"product_id":"ao-smith-100110901-observation-window","title":"Ao Smith 100110901 Observation Window","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe AO SMITH 100110901 is an observation window replacement part designed for use on water heaters and similar heating appliances where flame or burner visibility is required. This component allows technicians to visually inspect the burner flame and combustion process without opening the unit, supporting proper diagnostics and safe operation. It is a direct replacement intended to restore the original inspection capability of the appliance. Installation is typically performed by licensed plumbers, HVAC technicians, or water heater service professionals during routine maintenance or repair calls.\u003c\/p\u003e\n\u003cp\u003eThis observation window is suited for replacement applications on residential or light commercial water heating equipment where the original window has become cracked, discolored, or otherwise compromised. Maintaining a functioning observation window is important for proper combustion inspection and safe system operation. Consult the equipment service manual to confirm this part number applies to the specific unit being serviced before installation.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement observation window for AO SMITH heating equipment\u003c\/li\u003e\n  \u003cli\u003eAllows visual inspection of burner flame without opening the appliance\u003c\/li\u003e\n  \u003cli\u003eSupports proper combustion diagnostics and safe service procedures\u003c\/li\u003e\n  \u003cli\u003eOEM replacement part for restoring original equipment functionality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement observation window for AO SMITH water heaters and heating appliances requiring part number 100110901.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber or qualified HVAC technician. Before servicing, shut off gas supply and allow the unit to cool completely. Ensure the replacement window is properly seated and sealed to prevent combustion gas leakage. Follow all applicable local codes and the manufacturer service documentation for the specific appliance model.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Replacement Part\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Window\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: AO SMITH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 100110901\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TAILWIND","offers":[{"title":"Default Title","offer_id":51150650245426,"sku":"100110901","price":33.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305989810.jpg?v=1778615227","url":"https:\/\/voomisupply.com\/products\/ao-smith-100110901-observation-window","provider":"Voomi Supply","version":"1.0","type":"link"}