The speed control is made out of plastic and metal. This is an authentic OEM part for use in fireplaces, heaters, and ranges made by Majestic and Monessen. It is available as an individual replacement part. You may need a screwdriver, a set of pliers, and a wrench when replacing this item. It will require replacing if it becomes broken.
It is a genuine manufacturer-supplied item that is made for use with Majestic and Monessen fireplaces. This is an identical replacement for missing or damaged components that were included with a new unit. Place rock wool evenly over burner ports. Wash hands after installing rock wool. Itching may occur. Refer to the appropriate diagrams and the owner's manual for your model to ensure the correct application.