The Riddle Grate sits into the centre of the Bottom Grate. This allows you to grate the stove from the
outside. Most stoves have a riddle bar fitted to shake the grate from side to
side and up and down. When you shake the
riddle grate, the ash and cinders drop from the firebox and into the ash pan.
Prolonged exposure to hot ash will damage the bard of the riddling grate
therefore this often needs replacing due to general wear and tear over time.