Would like to hear what people with the Oslo F500V3 combustor have been experiencing. good or bad reviews. Have not been happy with the combustor falling apart after one season. we do not overheat, use only seasoned wood, use a brush and shop vac to clean the combustor when stove is cool during the heating season, which I do not think is effective in getting any ash accumulation in the rear of combustor, use firestarters if need to restart the fire, and still combustor has collapsed. your comments and experiences?