Desa UNVENTED (VENT-FREE) PROPANE/LP GAS LOG HEATER Minimum Non Combustible Material Clearances

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OWNER’S MANUAL

INSTALLATION

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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, non-combustible material above fireplace opening is not needed. Go to Installing Damper Clamp Accessory for Vented Op- eration, page 9.

Minimum Non Combustible Material Clearances

If Not Using Mantel

Note: If using a mantel, go to column 3. 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 combustible material behind it. Non combustible mate- rial must extend at least 8" up (for all mod- els). If non combustible material is less than 12", you must install the fireplace hood accessory (24", 30", and 36” models only). See chart below and Figure 4 on page 6 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 9.

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 combustible material behind it. Non combustible mate- rial 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", 30”, and 36" 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 chart below and Figures 6 and 7, page 8, 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 9.

Non-Combustible

Requirements for

Material Distance (A)

Safe Installation

 

 

12" or more

Non combustible material OK.

Between 8" and 12"

24", 30", or 36” Models: Install fireplace hood accessory

 

(GA6050 or GA6052, see Accessories, page 19).

 

18" Model: Non combustible material OK.

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

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Contents Log Design FLAME-MAXWhat to do if YOU Smell GAS DesignVanguard FLAME-MAX Unvented PROPANE/LP GAS LOG Heater Safety InformationUnpacking Product FeaturesProduct Identification Local CodesDetermining if You Have a Confined or Unconfined Space Determining AIR Flow for Heater LocationUnusually Tight Construction Confined and Unconfined SpaceSmaller than that defined as an Ventilation AIRVentilation Air From Inside Building Ventilation Air From OutdoorsMinimum Fireplace Clearance To Combustible Materials InstallationInstallation Check GAS TypeIf Using Mantel If Not Using MantelMinimum Non Combustible Material Clearances Mantel Clearances Determining Minimum Mantel Clear- ance When using a HoodDeterming Minimum Mantel Clearance Floor Clearances Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Installation Items NeededStandard Oak Log Chassis Connecting to GAS SupplyGolden Oak and Birch Model Chassis External Regulator With Vent Pointing Down Test Pressures Equal To or Less Than 1/2 Psig Pressure Testing Heater Gas ConnectionsPressure Testing Gas Supply Piping System Checking GAS ConnectionsFor Vintage Oak Model Installing LogsFor Golden Oak or Birch Models Operating Heater For Your Safety Read Before LightingLighting Instructions Inspecting Burners Cleaning and MaintenanceObserved Problem Possible Cause Remedy TroubleshootingRefer to Air for Combustion and Venti Gas leak. See Warning statement at TopTechnical Service SpecificationsReplacement Parts AccessoriesFLAME-MAX Vintage OAK Models VYS18P and VYS24P Illustrated Parts BreakdownODS Pilot KEY Part Number for VYS18P VYS24P Description QTY Parts List1A* 1A Parts List Warranty Information
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