This high elevation kit is specifically for use with your Williams Natural Gas 22,000 BTU Direct Vent Gravity Furnace. It includes all required orifices to meet your specific elevation needs. A high elevation kit is required for elevations over 2,000 feet above sea level.
Orifices are included for the following elevations:
- 2001′ to 4000′ above sea level – P090547
- 4001′ to 6000′ above sea level – P090548
- 6001′ to 8000′ above sea level – P090550