This workshop will give attendees the opportunity to learn hands-on locations of critical heater parts and their functions. Students will learn to identify parts such as the gas valve, 24v transformer, headers, burners and ignition source. Testing locations and parameters will be covered, such as gas test ports and pressures, and electrical test locations & voltages. Commonly serviced components will be accessed, and procedures for removal and replacement will be demonstrated, including the burner tray, individual burners, inlet/outlet header, and heat exchanger. Limited class size ensures more individual instruction with open conversation and discussion, directly addressing questions arising from within this instructional event.