Description
The Lochinvar & A.O. Smith 100281565 is an OEM replacement Natural Gas Manifold/Orifice Assembly engineered for precise fuel metering and reliable combustion performance in compatible Lochinvar and A.O. Smith water heating equipment. This assembly ensures accurate gas distribution to each burner port, maintaining consistent flame characteristics and optimal heating efficiency.
Product Overview
Designed as a direct OEM replacement, this manifold and orifice assembly delivers the correct natural gas flow rate required for safe, efficient burner operation. Using genuine manufacturer parts helps maintain equipment warranty compliance and ensures the unit performs to its original factory specifications.
Key Features
- OEM replacement manifold/orifice assembly for Lochinvar and A.O. Smith equipment
- Configured for natural gas (NAT) fuel type
- Engineered for precise gas metering and consistent fuel delivery to burner ports
- Supports optimal combustion efficiency and stable flame performance
- Direct drop-in replacement for simplified installation
- Manufactured to original equipment specifications for reliable, long-term service
Application
- Compatible with select Lochinvar and A.O. Smith water heating appliances
- Intended for natural gas installations only
- Consult equipment documentation or a qualified technician to confirm compatibility before installation
Important Notes
Always verify the part number against your equipment’s service manual or parts list prior to ordering. Installation should be performed by a licensed HVAC/R or plumbing professional in accordance with local codes and the manufacturer’s guidelines.







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