DESA INTERNATIONALUNVENTED (VENT-FREE)NATURAL GAS LOG HEATERManually Control Models Also Designed Certified as Vented Decorative Appliance)This appliance may be installed in an aftermarket* manufactured (mobile) home,where not prohibited by state or local codes.* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturerOWNER’S OPERATION AND INSTALLATION MANUALSave this manual for future reference.®18", 24", and 30" Log SetsThermostat and Manually-Controlled ModelsWARNING: If the information in thismanual is not followed exactly, a fire orexplosion may result causing propertydamage, personal injury, or loss of life.— Do not store or use gasoline or otherflammable vapors and liquids in thevicinity of this or any other appliance.— WHAT TO DO IF YOU SMELL GAS• Do not try to light any appliance.• Do not touch any electrical switch;do not use any phone in your build-ing.• Immediately call your gas supplierfrom a neighbor’s phone. Follow thegas supplier’s instructions.• If you cannot reach your gas sup-plier, call the fire department.— Installation and service must be per-formed by a qualified installer, serviceagency, or the gas supplier.WARNING: Improper installation, adjust-ment, alteration, service, or maintenancecan cause injury or property damage.Refer to this manual for correct installa-tion and operational procedures. Forassistance or additional information con-sult a qualified installer, service agency,or the gas supplier.WARNING: This gas log set is for instal-lation in a masonry solid fuel burningfireplace, a U.L. listed manufacturedsolid fuel burning fireplace or an AGAdesign certified vent-free firebox listedfor use with these gas log models.WARNING: This is an unvented gas-fired heater. It uses air (oxygen) fromthe room in which it is installed. Provi-sions for adequate combustion and ven-tilation air must be provided. Refer to“Air for Combustion and Ventilation”section in this manual.