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Preparation
Operator’s Manual 11
THEORY OF OPERATION
The Fuel System: The hose / regulator assembly attaches to the propane gas supply. The propane gas moves
through the solenoid valve and out the nozzle.
The Air System: The motor turns the fan. The fan pushes air into and around the combustion chamber. This air
is heated and provides a stream of clean, hot air.
The Ignition System: The direct spark ignitor (DSI) sends voltage to the ignitor. The ignitor ignites the fuel and
air mixture.
The Safety Control System: This system causes the heater to shut down if the flame goes out. The motor will
continue to run, but no heat is produced.
Air For Combustion
Air For Heating
Cool
Air In
(Back)
Motor
Nozzle
Power Cord
Hose/
Regulator
Assembly
Solenoid Valve
Ignitor
Combustion Chamber
DSI
Fan
Clean
Heated
Air Out
(Front)