Description
The Armstrong Furnace ALPKT572-3 is an OEM natural-to-liquid propane (LP) gas conversion kit designed to allow compatible Armstrong furnaces to operate on liquid propane fuel instead of natural gas. This kit provides everything needed to safely and correctly reconfigure your furnace’s gas system, ensuring proper combustion, safe operation, and continued peak performance after the fuel-type change.
Key Features
- Converts compatible Armstrong furnaces from natural gas (Nat) to liquid propane (LP) operation
- OEM Armstrong Furnace replacement part — engineered for precise fit and function
- Includes necessary conversion components for a complete and code-compliant changeover
- Helps maintain proper burner operation, heat output, and efficiency after conversion
- Ideal for installations where only LP gas supply is available
Application
- Designed for use with select Armstrong Furnace models — verify compatibility with your furnace model number before ordering
- Suitable for residential and light commercial furnace applications
Why Convert?
Liquid propane is a common alternative to natural gas in areas where natural gas supply lines are unavailable. Using the correct OEM conversion kit — such as the ALPKT572-3 — ensures that orifice sizing, gas valve settings, and burner components are properly matched to LP fuel, maintaining safe combustion and protecting your warranty.
Important Notes
- Gas conversion must be performed by a qualified HVAC technician in accordance with local codes and regulations
- Always confirm furnace model compatibility before installation
- Retain all original components and documentation after conversion







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