Desa INTERNATIONAL UNVENTED (VENT-FREE) GAS LOG HEATER Thermostat Control Operation

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OPERATING HEATER (THERMOSTAT-CONTROLLED MODELS)

Thermostat Control

Manual Lighting Procedure

OPERATING HEATER (REMOTE-READY MODELS)

For Your Safety Read Before Lighting

Lighting Instructions

OPERATING HEATER

Continued

THERMOSTAT CONTROL

OPERATION

The thermostat control knob can be set to any comfort level between Hi and Lo. The thermostat will gradually modulate the heat output and flame height from higher to lower settings, or pilot, in order to maintain the comfort level you select. The ideal comfortsettingwillvarybyhouseholddependingupontheamount of space to be heated, the output of the central heating system, etc.

Note: Selecting the Hi setting with the control knob will cause the burner to remain fully on, without modulating down in most cases.

MANUAL LIGHTING PROCEDURE

1.Follow steps 1 through 5 under Lighting Instructions, page 19.

2.Depress control knob and light pilot with match.

3.Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. Now follow steps 8 and 9 under Lighting Instructions, page 19.

REMOTE-READY MODELS

FOR YOUR SAFETY

READ BEFORE LIGHTING

WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing prop- erty damage, personal injury or loss of life.

A.This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly.

B.BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance.

Do not touch any electric switch; do not use any phone in your building.

Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

If you cannot reach your gas supplier, call the fire de- partment.

C.Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or turn by hand, don’t try to repair it, call a qualified service techni- cian or gas supplier. Force or attempted repair may result in a fire or explosion.

D.Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.

LIGHTING INSTRUCTIONS

WARNING:

If fireplace has glass doors, never operate this heater with glass doors closed. If you operate heater with doors closed, heat buildup inside fire- place will cause glass to burst. Also if fireplace opening has vents at the bottom, you must open the vents before operating heater.

You must operate this heater with a fireplace screen in place. Make sure fireplace screen is closed before running heater.

NOTICE: During initial operation of new heater, burn- ing logs will give off a paper-burning smell. Open damper or window to vent smell. This will only last a few hours.

Note: Home owners generally prefer to operate their heater with the chimney damper closed. This will put all the heat into the room. However, there may be times you will desire the full flames of the High heat setting but will find the heat output excessive. You can open the chimney damper (if you have one) fully or partially to release some of the heat.

WARNING: Damper handle will be hot if heater has been running.

1.STOP! Read the safety information in column 1.

2.Make sure equipment shutoff valve is fully open.

3.Set switch in OFF position.

WARNING: Burner will come on automatically within one minute when the remote selector switch is in the ON position after the pilot is lit.

4.Press in and turn control knobs clockwise to the OFF position.

5.Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Fol- low “B” in the safety information, column 1. If you don’t smell gas, go to the next step.

6.Press in and turn control knob counterclockwise to the PILOT position. Press in control knob for five (5) seconds (see Figure 37, page 21).

Note: You may be running this heater for the first time after hooking up to gas supply. If so, the control knob may need to be pressed in for 30 seconds or more. This will al- low air to bleed from the gas system.

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Contents International OWNER’S Operation and Installation Manual What to do if YOU Smell GASTable of Contents Safety InformationSafety Information Optional Remote Control Accessories Product IdentificationLocal Codes UnpackingProduct Features AIR for Combustion and VentilationDetermining FRESH-AIR Flow for Heater Location Determining if You Have a Confined or Unconfined SpaceVentilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Installation Check GAS TypeMinimum Noncombustible Material Clearances See Between 8Determining Minimum Mantel Clearance When Using a Hood Mantel ClearancesFloor Clearances Determining Minimum Mantel ClearanceInstalling Damper Clamp Accessory for Vented Operation Installing Heater Base AssemblyInstallation Items Needed Remote-Ready Models OnlyConnecting to GAS Supply External Regulator With Vent Pointing Down Checking GAS Connections Pressure Testing gas Supply Piping systemPressure Testing Heater Gas Connections Installing Logs Installing Log #2 Model CGX3930NT ShownInstalling Log #3 Model VGX30NT Shown Installing Log #3 Model LGX3924NT Shown Models LGX3924NT and LGX3924PTAttaching Grate to Base Assembly Operating HeaterAdding Lava Rock Lighting InstructionsShutting Off Burners Only pilot stays lit To Turn OFF GAS to ApplianceShutting Off Heater Thermostat Control Operation Manual Lighting ProcedureREMOTE-READY Models For Your Safety Read Before Lighting Flame Optional Remote Operation Thermostat Control OperationGhrc Series Operation Ghrcta Series OperationFront Burner Flame Pattern Inspecting BurnersPilot Flame Pattern Logs Cleaning MaintenanceCleaning Burner Injector Holder and Pilot AIR Inlet Hole Troubleshooting Observed Problem Possible Cause RemedyRefer to Air for Combustion and Venti Gas leak. See Warning statement Optional Positioning of Thermostat Sensing Bulb Important Do not crimp capillarySpecifications Wiring DiagramService Hints Technical ServiceIllustrated Parts Breakdown Illustrated Parts BreakdownParts List Parts ListTHERMOSTAT-CONTROLLED VGX24NT, VGX24PT VGX30NT, VGX30PT29 THERMOSTAT-CONTROLLED Parts Available not ShownCGX3924NR, CGX3924PR REMOTE-READY LGX3924NT, LGX3924PT KEY Part Number LGX3924NT LGX3924PT Description QTY Replacement Parts AccessoriesOwners Registration Form International For . .com Not a UPC

INTERNATIONAL UNVENTED (VENT-FREE) GAS LOG HEATER specifications

The Desa International Unvented (Vent-Free) Gas Log Heater stands as a remarkable solution for those seeking an efficient and aesthetically pleasing heating option for their homes. Recognized for its innovative design and advanced technology, this heater offers numerous benefits that cater to both functionality and style.

One of the main features of the Desa gas log heater is its vent-free design. This characteristic eliminates the need for ductwork or exhaust systems, allowing for easy installation in various locations, including living rooms, bedrooms, or recreational areas. With no external venting required, homeowners can enjoy increased flexibility in placement while saving on installation costs and labor. Moreover, the heater can fit seamlessly into existing fireplaces, creating a cozy ambiance without the need for traditional firewood.

Another standout feature of the Desa vent-free gas log heater is its exceptional energy efficiency. Utilizing infrared technology, the heater converts a high percentage of gas to heat, warming spaces quickly and reducing energy consumption. The unit is designed to operate with natural gas or propane, offering versatility depending on the homeowner's fuel preferences.

Safety is a top priority in the design of the Desa gas log heater. Equipped with an automatic shut-off system and an oxygen depletion sensor, the heater ensures secure operation by shutting down in case oxygen levels drop too low. This added safety feature provides peace of mind for families, allowing for safe use even during extended periods of operation.

Aesthetically, the Desa International gas log heater does not compromise on style. With an array of realistic log designs and finishes, homeowners can choose a heater that complements their interior decor perfectly. The unit’s flame effects mimic traditional wood-burning fires, enhancing the warm ambiance of any room.

In conclusion, the Desa International Unvented (Vent-Free) Gas Log Heater offers a unique combination of efficiency, safety, and aesthetics. Its vent-free design allows for flexible installation, while infrared heating technology ensures quick warmth and energy savings. Coupled with enhanced safety features and an attractive appearance, this gas log heater provides a practical and stylish heating solution for any home.