Williams 30,000 BTU Direct Vent Natural Gas Wall Furnace High Altitude Conversion Kit

The high-altitude kit for the Williams 3003822 direct vent wall heater contains the necessary orifices for converting this heater to function in elevations up to 1000 ft. Standard wall heaters come 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