Hello It is a Harman XXV . The Auger Bearing is still in perfect condition, but the auger has some buildup! Cleaning and grinding any pox certainly helps the Harman auger squeal problem too! No Harman auger pox See pics of this stove that had it since it was new. https://www.hearth.com/talk/threads/holy-harman-auger-pox-batman.109241/#post-1439352 Does it need a good cleaning?