November 13, 2013 7021-130DPage 33Castile-B FS Pellet StoveCorrect Flame Size, Yellow/White in ColorCorrectFigure 33.3Ash Build Up in FireboxPellets Back UpIn Feed TubeFirepot OverfillsTall, Lazy Flame, Orange in ColorIncorrectFigure 33.1Figure 33.2D. High Ash Fuel Content Maintenance• Frequency: When the ash build-up exceeds morethan half way up the firepot.• By: HomeownerPoor quality pellet fuel, or lack of maintenance, can createconditions that make the firepot fill quickly with ashes andclinkers.This condition makes the appliance susceptible to overfillingthe firepot with pellets which may result in smoking, sootingand possible hopper fires. Figure 33.1 shows an examplewhere the firepot overfills, pellets back up into the feed tubeand ash has accumulated in the firebox.An inefficient and non-economical method of burning of fuelcaused by poor quality pellet fuel is shown in Figure 33.2.The correct flame size when good quality, premium pelletfuel is burned is shown in Figure 33.3.If the ash buildup exceeds the half way point in the firepotIMMEDIATE ATTENTION AND CLEANING IS REQUIRED.E. Soot or Creosote FireEstablish a routine for the fuel, wood burner and firing tech-nique. Check daily for creosote build-up until experienceshows how often you need to clean to be safe. Be aware thatthe hotter the fire the less creosote is deposited, and weeklycleaning may be necessary in the mild weather even thoughmonthly cleaning may be enough in the coldest months.Contact your local municipal or provincial fire authority forinformation on how to handle a chimney fire.In the event of a soot or creosote fire, close the fireboxdoor, exit the building immediately and contact the properfire authorities.DO NOT under any circumstances re-enter the building.