Desa CRL2718N, CRL3124N, CCL3018NT Minimum Noncombustible Material Clearances, If Not Using Mantel

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8

INSTALLATION

Installation And Clearances (Vent-Free Operation Only)

INSTALLATION

Continued

Minimum Clearances For Side Combustible Material, Side Wall, and Ceiling

A.Clearances from the side of the fireplace cabinet to any com- bustible material and wall should follow diagram in Figure 5.

Example: The face of a mantel, bookshelf, etc. is made of combustible material and protrudes 3 1/2" from the wall. This combustible material must be 4" from the side of the fireplace opening (see Figure 5).

Note: When installing your gas logs into a manufactured fire- box, follow firebox manufacturer’s instructions for minimum clearances to combustible materials.

B.Clearances from the top of the fireplace opening to the ceiling should not be less than 42 inches.

Example

*

*Minimum 16 inches from Side Wall

Figure 5 - Minimum Clearance for Combustible to Wall

NOTICE: Manual control heaters may be used as a vented product. If so, you must always run heater with chimney flue damper open. If running heater with damper open, noncombustible material above fire- place opening is not needed. Go to Installing Damper Clamp Accessory for Vented Operation, page 10.

If Using Mantel

You must have noncombustible material(s) above the fireplace opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have noncombustible material behind it. Noncombustible material must extend at least 8 inches up (for all models). If noncombustible material is less than 12", you must install the fireplace hood accessory (24" and 30" models only). Even if noncombustible material is more than 12", you may need the hood accessory to deflect heat away from your mantel shelf. See Figure 6 and Figures 7 and 8 on page 9 for minimum clearances.

IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open. Go to Install- ing Damper Clamp Accessory for Vented Operation, page 10.

Noncombustible

Requirements for

Material Distance (A)

Safe Installation

 

 

12" or more

Noncombustible material okay.

Between 8" and 12"

24" or 30" Models: Install

 

fireplace hood accessory

 

(GA6050, GA6052, or GA6053

 

see Accessories, page 36).

 

18" Model: Noncombustible

 

material okay.

Less than 8"

Noncombustible material must

 

be extended to at least 8". See

 

Between 8" and 12", above. If

 

you cannot extend material,

 

you must operate heater with

 

flue damper open.

 

 

Minimum Noncombustible Material Clearances

If Not Using Mantel

Note: If using a mantel, proceed to If Using Mantel. If not using a mantel, follow the information below.

You must have noncombustible material(s) above the fireplace opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have noncombustible material behind it. Noncombustible material must extend at least 8" up (for all models). If noncombustible material is less than 12", you must install the fireplace hood accessory (24" and 30" models only). See Figure 6 for minimum clearances.

IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open. Go to Install- ing Damper Clamp Accessory for Vented Operation, page 10.

Heat Resistant

Material

(A)

Figure 6 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace

For..com

107123-01E

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Contents OWNER’S Operation Installation Manual Unvented VENT-FREE Natural GAS LOG HeatersBiltmore Split OAK, Seasonal OAK, Smoky Mountain OAK Logs What to do if YOU Smell GASTable of Contents Safety InformationProduct Identification Product Features UnpackingLocal Codes AIR for Combustion and VentilationDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationConfined and Unconfined Space Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Installation InstallationCheck GAS Type Minimum Firebox Size Log Front Rear Height Depth WidthIf Not Using Mantel Minimum Noncombustible Material ClearancesDetermining 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 Area of Various Standard Round FluesConnecting to GAS Supply Attaching Flexible Gas Hose to Heater Gas RegulatorPressure Testing Gas Supply Piping system Checking GAS ConnectionsDual Burner Smoky Mountain Oak Models Installing LogsPressure Testing Heater Gas Connections Dual Burner Premium Aged Split Oak Models Dual Burner Biltmore Split Oak ModelsInstalling Rear Log Installing Crossover Log Single Burner Seasonal Oak ModelsLighting Instructions For Your Safety Read Before LightingOperating Heater Manual Lighting Procedure Variable Control OperationTo Turn OFF GAS to Appliance Shutting Off HeaterIgnitor Button Cleaning and Maintenance Inspecting BurnersSpecifications LogsModel Models ModelTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Top Gas leak. See Warning statement at topOptional Positioning of Thermostat Sensing Bulb For Masonry and Factory-built Metal FireplaceIllustrated Parts BreakdownParts List Description QTYIllustrated Parts Breakdown CGD3018NT CGD3924NT CGD3930NTCGD3018NT CGD3924NT CGD3930NT CCL3018NT Thermostatically-Controlled Biltmore Split Oak ModelCCL3018NT CCL3924NT, CCL3930NTA CCL3924NT CCL3930NTA Variable Manually-Controlled Seasonal Oak Models Variable Manually-Controlled Mountain Oak Models CRL2718N CRL3124NReplacement Parts Service HintsTechnical Service AccessoriesOwners Registration Form Postage Required Parts Central Warranty Information
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