Description
Lennox 11K51 — 2-Stage Natural Gas to Liquid Propane Conversion Kit
The Lennox 11K51 is an OEM-engineered conversion kit designed to convert compatible Lennox 2-stage natural gas furnaces to operate on liquid propane (LP) fuel. Whether you’re installing a furnace in an area without access to natural gas lines or transitioning an existing system to propane, this kit provides everything needed for a safe, code-compliant fuel conversion.
Key Features
- Converts 2-stage natural gas furnaces to liquid propane (LP) operation
- OEM Lennox part — engineered for precise fit and function with compatible Lennox furnace models
- Supports 2-stage heating operation for improved comfort and efficiency
- Includes conversion components necessary for a complete fuel-type changeover
- Helps maintain furnace warranty compliance when installed per manufacturer guidelines
Why Choose an OEM Conversion Kit?
Using a genuine Lennox conversion kit ensures that all orifices, pressure settings, and components are calibrated specifically for your furnace model. Aftermarket alternatives may not provide the correct gas flow rates for 2-stage operation, potentially compromising efficiency, safety, and equipment longevity. The Lennox 11K51 eliminates guesswork and delivers a factory-approved solution.
Application
- Designed for compatible Lennox 2-stage gas furnaces
- Ideal for rural or off-grid installations where natural gas is unavailable
- Suitable for new installations or field conversions by qualified HVAC technicians
Installation Notes
This conversion kit should be installed by a licensed HVAC professional in accordance with all applicable local codes and the furnace manufacturer’s installation instructions. Always verify furnace model compatibility before ordering.
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