Desa CGB3930NR Minimum Non-Combustible Material Clearances, If Not Using Mantel, If Using Mantel

Page 8

CGD3924NR, CGB3924NR and CGB3930NR

UVENTED NATURAL GAS LOG HEATER

INSTALLATION

Continued

Minimum Non-Combustible Material Clearances

If Not Using Mantel

Note: If using a mantel, go to If Using Mantel. If not using a mantel, follow the information on this page.

You must have non-combustible material(s) above the fireplace opening. Non-combus- tible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have non-combus- tible material behind it. Non-combustible material must extend at least 8" up (for all models). If non-combustible material is less than 12", you must install the fireplace hood accessory (24" and 30" models only). See Figure 5 for minimum clearances.

IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open.

If Using Mantel

You must have non-combustible material(s) above the fireplace opening. Non-combus- tible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have non-combus- tible material behind it. Non-combustible material must extend at least 8 inches up (for all models). If non-combustible material is less than 12", you must install the fireplace hood accessory (24" and 30" models only). Even if non-combustible material is more than 12", you may need the hood accessory to deflect heat away from your mantel shelf. See Figure 5 and Figures 6 and 7 on page 9 for minimum clearances.

IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open.

Non-Combustible

Requirements for

Material Distance (A)

Safe Installation

 

 

12" or more

Non-combustible material okay.

Between 8" and 12"

Install fireplace hood accessory (GA6050, GA6052,

 

or GA6053, see Accessories, page 21).

Less than 8"

Non-combustible 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.

 

 

Heat Resistant

Material

(A)

Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace

8

104306

Page 7 Page 9
Image 8
Page 7 Page 9
Contents Yellow Flame Model Shown What to do if YOU Smell GASSafety Information Product Features Product IdentificationLocal Codes UnpackingAIR for Combustion and Ventilation Providing Adequate VentilationUnusually Tight Construction Confined Space and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Installation InstallationLOG Sizing Requirements Check GAS TypeMinimum Non-Combustible Material Clearances If Not Using MantelIf Using Mantel Mantel Clearances Floor ClearancesInstalling Heater Base Assembly Installation Items NeededConnecting to GAS Supply Pressure Testing gas Supply Piping systemChecking GAS Connections Test Pressures In Excess Of 1/2 PsigVolt Battery Installation Pressure Testing Heater Gas ConnectionsInstalling 9-Volt Alkaline Battery In Receiver Installing 9-Volt Battery In Hand- Held Remote Control UnitInstalling Logs CGD3924NR Place the base of the middle log #2Installing Logs on Models CGB3924PR and CGB3930PR Installing Back Log #2Lighting Instructions For Your Safety Read Before LightingOperating Heater Manual Lighting Procedure To Turn OFF GAS To ApplianceThermostat Control Operation Hand Held Remote OperationCleaning and Maintenance Inspecting BurnersTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Top Gas leak. See Warning statement atSpecificationsaccessories Wiring DiagramTechnical Service Service HintsIllustrated Parts Breakdown CGD3924NRParts List KEY Part Number Description QTYCGB3924NR CGB3930NR KEY CGB3924NR CGB3930NR Part Number Description QTY Replacement Parts Parts Under WarrantyParts not Under Warranty Parts Central104306 Warranty Information
Top Page Image Contents