Lochinvar & A.O. Smith 100112699 Gasket

Maintaining a high-efficiency combustion seal is critical for boiler and water heater safety, and the Lochinvar & A.O. Smith 100112699 Manifold Door Gasket is the professional-grade solution for the job. This genuine OEM replacement part is engineered to withstand the rigorous heat-cycling and high-temperature environments typical of modern condensing systems. As a HVAC manifold door gasket, its primary function is to prevent hazardous gas leaks and heat loss through the burner access point, ensuring the unit operates at peak thermal efficiency. For service technicians, utilizing a 100112699 Lochinvar gasket is mandatory during routine maintenance or pilot assembly inspections to avoid the compression set issues common with reused seals. This part is a direct boiler manifold seal replacement that meets original equipment tolerances, providing the reliability required in demanding residential and light commercial applications where water heater door gasket integrity is paramount.

• OEM Precision: Guaranteed 100112699 compatibility for a leak-free fit on approved Lochinvar and A.O. Smith manifold doors.
• High-Temperature Resilience: Constructed from advanced sealing materials to resist breakdown under extreme combustion heat.
• Safety Optimized: Critical for air-tight combustion, preventing CO leaks and ensuring proper flame characteristics.
• Direct Replacement: Replaces worn or degraded gaskets instantly to restore factory-spec vacuum and pressure seals.

When should the manifold door gasket be replaced?
Industry best practice dictates replacing the manifold door gasket every time the burner assembly or manifold door is opened for service. Reusing a compressed gasket often leads to imperfect seals and potential safety hazards.

How can I confirm this part fits my specific unit?
The Lochinvar & A.O. Smith 100112699 is designed for select boiler and water heater models. Always verify your specific model and serial number against the manufacturer’s parts list to ensure an exact match.

What are the signs of a failing manifold seal?
Technicians should look for visible singeing or discoloration around the door edges, evidence of heat bypassing the seal, or unstable burner pressure readings during combustion analysis.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.