AIR PRESSURE SWITCH
BURNER NG
ELECTRODE
EXPANSION VESSEL
FAN ASSEMBLY
GAS COCK
GAS VALVE
HEAT EXCHANGER
HEATING COCK
IGNITION TRANSFORMER
KNOB THERMOSTAT / MODE
NTC THERMISTOR SENSOR
PRESSURE GAUGE
PRINTED CIRCUIT BOARD
PUMP COMPLETE
SAFETY VALVE
SAFETY VALVE EXTENSION
SELECTOR SWITCH
SELECTOR SWITCH EXTENSION SHAFT
SIGHT GLASS
SIGHT GLASS GASKET
SIGHT GLASS RETAINING RING
THERMOSTAT HIGH LIMIT
VENTURI POSITIVE
VENTURI TUBE NEGATIVE
WATER PRESSURE SWITCH