15107100OWNER’S MANUALFor more information, visit www.desatech.comFigure 26 - Correct Burner Flame Patternat High PositionFigure 27 - Incorrect Burner Flame Patternat High PositionOPERATINGHEATERContinued1. Remove front panel (see Figure 2,page 4).2. Follow steps 1 through 5 under Light-ing Instructions, page 14.3. With control knob pressed in, strikematch. Hold match to pilot until pi-lot lights.4. Keep control knob pressed in for 30seconds after lighting pilot. After 30seconds, release control knob. Nowfollow step 8 under Lighting Instruc-tions, page 14.5. Replace front panel.The thermostatic control used on thisheater differs from standard thermostats.Standard thermostats simply turn on andoff the burner. The thermostat used onthis heater senses the room temperature.The thermostat adjusts the amount of gasflow to the burner. This increases or de-creases the burner flame height. At timesthe room may exceed the set temperature.If so, the burner will shut off. The burnerwill cycle back on when room temperaturedrops below the set temperature.The control knob can be set to any heatlevel between HI and LO.Note: The thermostat sensing bulb mea-sures the temperature of air near theheater cabinet. This may not always agreewith room temperature (depending onhousing construction, installation loca-tion, room size, open air temperatures,etc.). Frequent use of your heater will letyou determine your own comfort levels.THERMOSTATCONTROLOPERATIONMANUAL LIGHTINGPROCEDUREFigure 24 - Correct Pilot Flame PatternFigure 25 - Incorrect Pilot Flame PatternCheck pilot flame pattern and burner flamepattern often.PILOT FLAME PATTERNFigure 24 shows a correct pilot flame pat-tern. Figure 25 shows an incorrect pilotflame pattern. The incorrect pilot flame isnot touching the thermocouple. This willcause the thermocouple to cool. When thethermocouple cools, the heater will shutdown.If pilot flame pattern is incorrect, as shownin Figure 25• turn heater off (see To Turn Off Gas toAppliance, page 14)• see Troubleshooting, pages 17 through 19INSPECTINGBURNERBURNER FLAME PATTERNFigure 26 shows a correct burner flamepattern. Figure 27 shows an incorrect burnerflame pattern. The incorrect burner flamepattern shows yellow tipping of the flame. Italso shows the flame higher than one inchabove the log.Note: When using the heater the first time,the flame will be yellow for approximatelyone hour until the log cures.NOTICE: Do not mistake orangeflames with yellow tipping. Dirtor other fine particles enter theheater and burn causing briefpatches of orange flame.WARNING: If yellow tippingoccurs, your heater could pro-duce increased levels of carbonmonoxide. If burner flame patternshows yellow tipping, follow in-structions at bottom of this page.If burner flame pattern is incorrect, as shownin Figure 27• turn heater off (see To Turn Off Gas toAppliance, page 14)• see Troubleshooting, pages 17 through 19ThermocoupleThermocouplePilot BurnerPilot BurnerTop of Flame EvenWith Top of LogYellow Tipping