Description
The Lochinvar & A.O. Smith 100187863 is a 4-inch aluminum exhaust/condensate elbow engineered as a direct OEM replacement for compatible Lochinvar and A.O. Smith water heaters and boilers. Designed to handle the dual demands of flue gas exhaust routing and condensate drainage, this elbow ensures proper system venting and moisture management in high-efficiency condensing appliances.
Product Overview
High-efficiency condensing water heaters and boilers produce acidic condensate as a byproduct of the combustion process. This aluminum elbow is purpose-built to manage both exhaust gas flow and condensate runoff simultaneously, maintaining system efficiency and protecting the venting assembly from corrosive buildup.
Key Features
- OEM replacement part for Lochinvar and A.O. Smith appliances
- 4-inch diameter for compatibility with standard venting configurations
- Aluminum construction for corrosion resistance and long service life
- Dual-function design handles both exhaust gas routing and condensate drainage
- Precision-engineered fit ensures leak-free installation
- Ideal for use with high-efficiency condensing water heaters and boilers
Application
This elbow is designed for use in the venting systems of Lochinvar and A.O. Smith high-efficiency condensing appliances. It is typically installed at the flue outlet to redirect exhaust gases while allowing condensate to drain properly, preventing moisture accumulation within the venting system.
Why Choose OEM Parts?
Using genuine OEM replacement components like the 100187863 ensures proper fit, function, and compatibility with your existing equipment. OEM parts maintain manufacturer warranty compliance and deliver the performance standards your system was designed to meet.







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