This is the official review class for the Sixth Edition NFI Pellet Certification exam. The class is based on the official reference manual for the exam, Pellet Hearth Systems Reference Manual, Sixth Edition, published Fall 2018. The class covers the different approaches to pellet appliance fuel delivery, and venting systems. Planning, installation, and troubleshooting knowledge will also be covered. More specifically, such subjects as appliance components, electrical requirements, vent configurations and assembly, and common causes and solutions for pellet system problems will be discussed.