UNVENTED (VENT-FREE)GAS LOG HEATEROWNER’S OPERATION AND INSTALLATION MANUALFor more information, visit www.desatech.comFor more information, visit www.desatech.comSave this manual for future reference.Save this manual for future reference.WARNING: 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 electricalswitch; do not use any phone inyour building.• Immediately call your gas supplierfrom a neighbor’s phone. Followthe gas 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, ser-vice agency, or the gas supplier.This appliance may be installed in an aftermarket*, permanently located, manufactured (mobile)home, where not prohibited by local codes.This appliance is only for use with the type of gas indicated on the rating plate. This appli-ance is not convertible for use with other gases.* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturerAlso Design-Certified As Vented Decorative Appliances WhenNot Used With Hand-Held Thermostat RemoteWARNING: Improper installation, adjustment, al-teration, service, or maintenance can cause injuryor property damage. Refer to this manual for cor-rect installation and operational procedures. Forassistance or additional information consult a quali-fied installer, service agency, or the gas supplier.WARNING: This appliance is for installation onlyin a solid-fuel burning masonry or UL127 factory-built fireplace, or in a listed ventless firebox en-closure. It is design-certified for these installa-tions in accordance with ANSI Z21.11.2.Exception: Do not install this appliance in a fac-tory-built fireplace that includes instructions stat-ing it has not been tested or should not be usedwith unvented gas logs.WARNING: This is an unvented gas-fired heater. Ituses air (oxygen) from the room in which it isinstalled. Provisions for adequate combustion andventilation air must be provided. Refer toAir forCombustion and Ventilation section on page 4.VGL24NRVGL24PR24" Remote Ready