Desa INTERNATIONAL UNVENTED (VENT-FREE) GAS LOG HEATER Installing Heater Base Assembly

Page 11

INSTALLATION

Installing Damper Clamp Accessory For Vented Operation Installing Heater Base Assembly

11

INSTALLATION

Continued

INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION

(Remote-Ready Models Only)

Note: When used as a vented heater, appliance must be installed only in a solid-fuel burning fireplace with a working flue and constructed of noncombustible material.

If your heater is a manually-controlled, you may use this heater as a vented product. There are three reasons for operating your heater in the vented mode.

1.The fireplace does not meet the clearance to combustibles re- quirements for vent-free operation.

2.State or local codes do not permit vent-free operation.

3.You prefer vented operation.

If reasons number 1 or 2 above apply to you, you must permanently open chimney flue damper. You must install the damper clamp accessory (to order, see Accessories, page 38). This will insure vented operation (see Figure 10). The damper clamp will keep damper open. Installation instructions are included with clamp accessory.

See chart below for minimum permanent flue opening you must provide. Attach damper clamp so the minimum permanent flue opening will be maintained at all times.

Area of Various Standard

Round Flues

Diameter (ins.)

Area (sq. ins.)

 

 

5"

20 sq. inches

6"

29 sq. inches

7"

39 sq. inches

8"

51 sq. inches

 

 

Chimney

Minimum Permanent

Height (ft.)

Flue Opening (sq. ins.)

 

 

6' to 15'

39 sq. inches

15' to 30'

29 sq. inches

 

 

Damper Clamp

Damper Clamp

DamperDamper

Damper

Masonry Fireplace

Manufactured Fireplace

Figure 10 - Attaching Damper Clamp

INSTALLING HEATER BASE ASSEMBLY

WARNING: You must secure this heater to fire- place floor. If not, heater will move when you adjust controls. Moving heater may cause a gas leak.

WARNING: If installing in a sunken fireplace, special care is needed. You must raise the fireplace floor to allow access to heater control panel. This will insure adequate air flow and guard against sooting. Raise fireplace floor with noncombustible material. Make sure material is secure.

CAUTION: Do not pick up heater base assembly by burners. This could damage heater. Only handle base assembly by sides of base.

IMPORTANT: Make sure the heater burners are level. If heater is not level, heater will not work properly. For thermostat models, avoid damage to thermostat bulb. Avoid nicks or sharp bends in thermostat bulb wire. Keep thermostat bulb in mounting bracket.

Installation Items Needed

•hardware package (provided with heater)

•approved flexible gas hose and fitting (not provided) (if allowed by local codes)

•sealant (resistant to propane/LP gas, not provided)

•electric drill with 3/16" drill bit (metal or masonry as applicable)

•flathead screwdriver

1.Connect fitting to base as shown in Figure 11. Connect approved flexible gas hose to fitting in base (see Figure 11). IMPORTANT: Hold gas fitting with wrench when connecting flexible gas hose.

Flexible Gas Hose (if

 

allowed by local codes)

Fitting

Figure 11 - Attaching Flexible Gas Hose to Heater

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Contents What to do if YOU Smell GAS International OWNER’S Operation and Installation ManualSafety Information Table of ContentsSafety Information Unpacking Optional Remote Control AccessoriesProduct Identification Local CodesAIR for Combustion and Ventilation Product FeaturesDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Check GAS Type InstallationSee Between 8 Minimum Noncombustible Material ClearancesDetermining Minimum Mantel Clearance Determining Minimum Mantel Clearance When Using a HoodMantel Clearances Floor ClearancesRemote-Ready Models Only Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Installation Items NeededConnecting to GAS Supply External Regulator With Vent Pointing Down Checking GAS Connections Pressure Testing gas Supply Piping systemPressure Testing Heater Gas Connections Installing Log #2 Model CGX3930NT Shown Installing LogsInstalling Log #3 Model VGX30NT Shown Models LGX3924NT and LGX3924PT Installing Log #3 Model LGX3924NT ShownLighting Instructions Attaching Grate to Base AssemblyOperating Heater Adding Lava RockShutting 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 Ghrcta Series Operation Optional Remote OperationThermostat Control Operation Ghrc Series OperationFront Burner Flame Pattern Inspecting BurnersPilot Flame Pattern Logs Cleaning MaintenanceCleaning Burner Injector Holder and Pilot AIR Inlet Hole Observed Problem Possible Cause Remedy TroubleshootingRefer to Air for Combustion and Venti Gas leak. See Warning statement Important Do not crimp capillary Optional Positioning of Thermostat Sensing BulbTechnical Service SpecificationsWiring Diagram Service HintsIllustrated Parts Breakdown Illustrated Parts BreakdownParts List Parts ListTHERMOSTAT-CONTROLLED VGX24NT, VGX24PT VGX30NT, VGX30PT29 Parts Available not Shown THERMOSTAT-CONTROLLEDCGX3924NR, CGX3924PR REMOTE-READY LGX3924NT, LGX3924PT KEY Part Number LGX3924NT LGX3924PT Description QTY Accessories Replacement PartsOwners 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.
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