111160-01BFor more information, visit www.desatech.comFor more information, visit www.desatech.com2SAFETY INFORMATIONDANGER: Carbon monoxide poisoning may leadto death!Carbon Monoxide Poisoning: Early signs of carbon monoxidepoisoning resemble the flu, with headaches, dizziness, or nausea. Ifyou have these signs, the heater may not be working properly. Getfresh air at once! Have heater serviced. Some people are moreaffected by carbon monoxide than others. These include pregnantwomen, people with heart or lung disease or anemia, those under theinfluence of alcohol, and those at high altitudes.Natural and Propane/LP Gas: Natural and propane/LP gases areodorless. An odor-making agent is added to the gas. The odorhelps you detect a gas leak. However, the odor added to the gas canfade. Gas may be present even though no odor exists.Make certain you read and understand all warnings. Keep thismanual for reference. It is your guide to safe and proper operationof this heater.WARNING ICON G 001 WARNINGSIMPORTANT: Read this owner’s manual carefully andcompletely before trying to assemble, operate, or ser-vice this heater. Improper use of this heater can causeserious injury or death from burns, fire, explosion,electrical shock, and carbon monoxide poisoning.WARNING: Any change to this heater or its con-trols can be dangerous.WARNING: Do not allow fans to blow directly intothe fireplace. Avoid any drafts that alter burner flamepatterns. Ceiling fans can create drafts that alterburner flame patterns. Altered burner patterns cancause sooting.WARNING: Do not use a blower insert, heatexchanger insert, or other accessory not approvedfor use with this heater.Due to high temperatures, the appliance should belocated out of traffic and away from furniture anddraperies.Do not place clothing or other flammable material onor near the appliance. Never place any objects on theheater.Heater base assembly becomes very hot when run-ning heater. Keep children and adults away from hotsurface to avoid burns or clothing ignition. Heaterwill remain hot for a time after shutdown. Allowsurface to cool before touching.Carefully supervise young children when they are inthe room with heater.You must operate this heater with a fireplace screenin place. Make sure fireplace screen is closed beforerunning heater.Keep the appliance area clear and free from combus-tible materials, gasoline, and other flammable vaporsand liquids.TABLE OF CONTENTSSAFETY INFORMATIONTABLE OF CONTENTSSAFETY INFORMATION ............................................................ 2PRODUCT IDENTIFICATION ..................................................... 3LOCAL CODES ........................................................................... 4UNPACKING ............................................................................... 4PRODUCT FEATURES .............................................................. 4AIR FOR COMBUSTION AND VENTILATION ........................... 4INSTALLATION ........................................................................... 7OPERATING HEATER .............................................................. 17INSPECTING BURNERS .......................................................... 20CLEANING AND MAINTENANCE ............................................ 21TROUBLESHOOTING .............................................................. 22OPTIONAL POSITIONING OF THERMOSTAT SENSINGBULB FOR MASONRY AND FACTORY-BUILT METALFIREPLACE .......................................................................... 25REPLACEMENT PARTS .......................................................... 26SERVICE HINTS ....................................................................... 26TECHNICAL SERVICE ............................................................. 26ACCESSORIES ........................................................................ 26SPECIFICATIONS .................................................................... 27ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST ....... 28PARTS CENTRAL ..................................................................... 38OWNER’S REGISTRATION FORM .......................................... 39WARRANTY INFORMATION ...................................... Back CoverWARNING: This product contains and/or generateschemicals known to the State of California to causecancer or birth defects, or other reproductive harm.