Rheem Ruud WeatherKing LP Conversion Kit.
The Rheem / RUUD LP Conversion Kit allows for a simple conversion of a natural gas furnace to a LP (Propane) installation. Assure only to use the following conversion kits on the furnace model and gas control systems for which they are specified by the manufacturer. Do not substitute kits or kit components. All furnaces are manufactured to burn natural gas, conversion kit required if changing fuel type.