Williams 25,000 BTU Top Vent Liquid Propane Gas Wall Furnace High Altitude Conversion Kit

This high altitude conversion kit contains the necessary orifices for converting Williams heaters to function at elevations up to 1000 ft. A standard wall heater is rated for 0 to 2,000 ft. This kit will allow you to change the orifices for safe functioning at higher altitudes.|Contains the necessary components required for converting a standard room heater to work in elevations that are between 2000 ft. and 8000 ft.|Designed for use with the Williams gas wall heater|Easy-to-follow instructions|2-orifice sizes included