Desa VF-18P-PDG, VF-24N-BTB Minimum Noncombustible Material Clearances, If Not Using Mantel

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INSTALLATION

Installation and Clearances for Vent-Free Operation (Cont.)

INSTALLATION

Continued

Carefully follow the instructions below. This will ensure safe in- stallation into a masonry, UL127-listed manufactured fireplace, or listed vent-free firebox.

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 4.

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 cabinet (see Figure 4).

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 4 - Minimum Clearance for Combustible to Wall

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 5 for minimum clearances.

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 noncombus- tible material is less than 12", you must install the fireplace hood accessory (24" 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 5 and Figures 6 and 7, page 9, for minimum clearances.

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

Noncombustible

Requirements for

Material Distance (A)

Safe Installation

 

 

12" or more

Noncombustible material OK.

Between 8" and 12"

24" Models: Install fireplace hood ac-

 

cessory (GA6060, see Accessories,

 

page 27).

 

18" Model: Noncombustible mate-

 

rial OK.

Less than 8"

Noncombustible material must be ex-

 

tended to at least 8". See Between 8"

 

and 12", above. If you cannot extend

 

material, you must operate heater

 

with flue damper open.

 

 

NOTICE: Non thermostat controlled heaters maybe 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 fireplace opening is not needed. Go to Installing Damper Clamp Ac- cessory for Vented Operataion, page 10.

Heat Resistant

Material

(A)

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 on this page.

You must have noncombustible material(s) above the fireplace open- ing. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have

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

For more information, visit www.desatech.com

111826-01F

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Contents Unvented VENT-FREE GAS LOG Heater What to do if YOU Smell GASTable of Contents Safety InformationProduct Identification Remote Ready ModelsOptional Remote Control Accessories Product FeaturesLocal Codes UnpackingDetermining 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 Check GAS Type InstallationInstallation and Clearances for VENT-FREE Operation If Not Using Mantel Minimum Noncombustible Material ClearancesUsing a Hood Mantel ClearancesFloor Clearances Determining Minimum Mantel ClearanceInstalling Damper Clamp Accessory for Vented Operation Installing Heater AssemblyInstallation Items Needed Area of Various Standard Round FluesConnecting to GAS Supply Checking GAS Connections Pressure Testing gas Supply Piping systemPressure Testing Heater Gas Connections Checking Gas Joints propane/LP only Lighting Instructions For Your Safety Read Before LightingOperating Heater To Turn OFF GAS to Appliance Manual Lighting ProcedureRemote Control Operation Thermostat Control Operation Ghrctb Series OperationBurner Flame Pattern Inspecting BurnersPilot Flame Pattern Logs Cleaning and MaintenanceCleaning Burner Injector Holder and Pilot AIR Inlet Hole Troubleshooting Observed Problem Possible Cause RemedyRefer to Air for Combustion and Venti Observed Problem Possible Cause Specifications VF-18N-PDG/VF-18N-BTBWiring Diagram Service HintsTechnical Service Replacement PartsLog sets and mounting plates are ordered as an assembly Illustrated Parts BreakdownVF-24N-PDG, VF-24P-PDG, VF-24N-BTB, VF-24P-BTB Parts List Parts ListAccessories This page Intentionally Left Blank Owners Registration Form Postage Required 111826-01F Warranty Information