This is an original Mr. Heater replacement item specially designed for use with a heater. It is used to control the functions of the unit. This is a simple red plastic knob and it is sold individually. To replace it simply pull off the old knob and secure the new one over the shaft.

This is a high-quality manufacturer-sourced part which is made for use with Mr. Heater equipment. It helps stabilize the flame and assist in the radiation of heat. Over time it may wear out or get damaged eventually requiring a replacement. For the proper application, please refer to the appropriate diagrams of your model. This high-quality part is made of durable ceramic material and is sold as an individual component. You will need a screwdriver to remove the old burner tile and attach the new one. Note, the #73433 Tile,​ Gasket is sold separately.