All night burners allow more control over the air intake to the fuel via an adjustable draught to the fire grate. This will allow you to adjust the fire to burn brightly when needed and slowly overnight, never going out. The 16 inch Regency all night burner will fit any 16 inch standard fireback. A version is also available to suit Grant and similar square grate type High Output Back Boilers. This set is a combination of a grate, fret, ash pan and tool. Both types from stock