2104274VENT-FREE NATURAL GAS HEATER®Carbon Monoxide Poisoning: Early signsof carbon monoxide poisoning resemble theflu, with headaches, dizziness, or nausea. Ifyou have these signs, the heater may not beworking properly. Get fresh air at once!Have heater serviced. Some people are moreaffected by carbon monoxide than others.These include pregnant women, personswith heart or lung disease or anemia, thoseunder the influence of alcohol, and those athigh altitudes.Natural Gas: Natural gas is odorless. Anodor-making agent is added to natural gas.The odor helps you detect a natural gas leak.However, the odor added to natural gas canfade. Natural gas may be present even thoughno odor exists.Make certain you read and understand allwarnings. Keep this manual for reference. Itis your guide to safe and proper operation ofthis heater.SAFETYINFORMATIONWARNING ICON G 001 WARNINGSIMPORTANT: Read this owner’smanual carefully and completelybefore trying to assemble, oper-ate, or service this heater. Im-proper use of this heater cancause serious injury or death fromburns, fire, explosion, and car-bon monoxide poisoning.DANGER: Carbon monoxidepoisoning may lead to death!1. This appliance is only for use with thetype of gas indicated on the rating plate.This appliance is not convertible for usewith other gases.2. If you smell gas• shut off gas supply• do not try to light any appliance• do not touch any electrical switch; donot use any phone in your building• immediately call your gas supplierfrom a neighbor’s phone. Follow thegas supplier’s instructions• if you cannot reach your gas supplier,call the fire department3. Heater model VN10A shall not be in-stalled in a bathroom.4. Always run heater with control knobat LOW or HIGH locked positions(VN10A) or ON position (VN6D).Never set control knob between lockedpositions. Poor combustion may result.5. This heater needs fresh, outside air ven-tilation to run properly. This heater hasan oxygen depletion sensing (ODS)safety shutoff system. The ODS shutsdown the heater if not enough fresh airis available. See Air for Combustionand Ventilation, pages 4 through 6.6. Keep all air openings in front and bot-tom of heater clear and free of debris.This will insure enough air for propercombustion.7. If heater shuts off, do not relight untilyou provide fresh, outside air. If heaterkeeps shutting off, have it serviced.8. Do not run heater• where flammable liquids or vaporsare used or stored• under dusty conditions9. Before using furniture polish, wax, car-pet cleaner, or similar products, turnheater off. If heated, the vapors fromthese products may create a white pow-der residue within burner box or onadjacent walls or furniture.10. Do not use heater if any part has beenunder water. Immediately call a quali-fied service technician to inspect theroom heater and to replace any part ofthe control system and any gas controlwhich has been under water.11. Turn off heater and let cool before ser-vicing. Only a qualified service personshould service and repair heater.12. Operating heater above elevations of4,500 feet could cause pilot outage.WARNING: Any change tothis heater or its controls can bedangerous.Do not place clothing or otherflammable material on or nearthe appliance. Never place anyobjects on the heater.Surface of heater becomes veryhot when running heater. Keepchildren and adults away fromhot surface to avoid burns orclothing ignition. Heater will re-main hot for a time after shut-down. Allow surface to cool be-fore touching.Carefully supervise young chil-dren when they are in the sameroom with heater.Make sure grill guard is in placebefore running heater.Keep the appliance area clear andfree from combustible materials,gasoline and other flammablevapors and liquids.Due to high temperatures, theappliance should be located outof traffic and away from furnitureand draperies.WARNING: Do not use anyaccessory not approved for usewith this heater.