19101809TO TURN OFF GAS TO APPLIANCEOPERATINGHEATERContinued Shutting Off Heater1. Turn control knob clockwise Clockwise to the OFF position.2. Turn off all electric power to the appliance if service is to be performed.Shutting Off Burner Only (pilot stays lit)1. Turn control knob clockwise Clockwise to the PILOT position.THERMOSTAT CONTROL OPERATIONThe thermostatic control used on these models differs from standard thermo-stats. Standard thermostats simply turn on and off the burner. The thermostatused on this heater senses the room temperature. The thermostat adjusts theamount of gas flow to the burner. This increases or decreases the burner flameheight. At times the room may exceed the set temperature. If so, the burnerwill shut off. The burner will cycle back on when room temperature dropsbelow the set temperature. The control knob can be set to any heat levelbetween HI and LO. Selecting the HI setting will cause the burner to remainfully on without modulating down in most cases.Note: The thermostat sensing bulb measures the temperature of air near theheater cabinet. This may not always agree with room temperature (dependingon housing construction, installation location, room size, open air tempera-tures, etc.). Frequent use of your heater will let you determine your owncomfort levels.MANUAL LIGHTING PROCEDURE1. Remove front panel (see Figure 7, page 11).2. Follow steps 1 through 5 under Lighting Instructions, pages 17 and 18.3. With control knob pressed in, strike match. Hold match to pilot until pilotlights.4. Keep control knob pressed in for 30 seconds after lighting pilot. After 30seconds, release control knob.5. Replace front panel.