Description
The York S1-1NP0704 is an OEM natural-to-LP (liquid propane) gas conversion kit engineered for York furnaces operating at altitudes up to 2,000 feet. Designed for straightforward field installation, this kit provides everything needed to safely and accurately convert a York furnace from natural gas to liquid propane fuel, ensuring proper combustion performance and compliance with manufacturer specifications.
Key Features
- Converts York furnaces from natural gas (Nat) to liquid propane (LP) fuel operation
- Rated for installations at altitudes up to 2,000 feet
- OEM York replacement part — ensures compatibility and reliable performance
- Supports proper combustion efficiency and safe furnace operation after fuel conversion
- Includes all necessary components for a complete conversion
Application
This conversion kit is ideal for HVAC technicians and contractors performing fuel-source changeovers on compatible York furnace models. Always verify compatibility with the specific York furnace model before installation, and follow all local codes and manufacturer guidelines when converting gas-fired appliances.
Specifications
- Brand: York
- Part Number: S1-1NP0704
- Conversion Type: Natural Gas to LP (Liquid Propane)
- Altitude Rating: Up to 2,000 Ft
- Application: York Furnaces









