Desa UNVENTED (VENT-FREE) PROPANE/LP GAS LOG HEATER Installing Heater Base Assembly

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OWNER’S MANUAL

INSTALLATION

Continued

Floor Clearances

A.If installing appliance on the floor level, you must maintain the minimum dis- tance of 14" to combustibles (see Fig- ure 8).

INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION

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

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

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

 

 

INSTALLING HEATER BASE ASSEMBLY

Combustible

14" Material

Min.

Non-Combustible

Material

Figure 8 - Minimum Fireplace Clearances If Installed at Floor Level

B.If combustible materials are less than 14" to the fireplace, you must install appliance at least 5" above the combus- tible flooring (see Figure 9).

Hearth Combustible

5” Material

Min.

Figure 9 - Minimum Fireplace Clearances Above Combustible Flooring

1.The fireplace does not meet the clear- ance to combustibles requirements 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 19). 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.

Chimney

Minimum Permanent

Height (ft.)

Flue Opening (sq. ins.)

 

 

6' to 15'

39 sq. inches

15' to 30'

29 sq. inches

WARNING: You must secure this heater to fireplace 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 fire- place floor to allow access to heater control panel. This will in- sure adequate air flow and guard against sooting. Raise fireplace floor with non-combustible ma- terial. Make sure material is se- cure.

CAUTION: Do not pick up heater base assembly by the burner. This could damage heater. Only handle base assem- bly by grates.

Damper

ClampDamper

Damper

Clamp

Damper

Damper

Masonry Fireplace

Manufactured Fireplace

Figure 10 - Attaching Damper Clamp

IMPORTANT: Do not separate the alumi- num information tags from your heater. These tags contain important information about operating and servicing your heater.

IMPORTANT: Make sure the heater burner is level. If heater is not level, heater will not work properly.

Installation Items Needed

hardware package (provided with heater)

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

sealant (resistant to LP gas, not provided)

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

flathead screwdriver

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Contents What to do if YOU Smell GAS FLAME-MAXDesign Log DesignVanguard FLAME-MAX Unvented PROPANE/LP GAS LOG Heater Safety InformationProduct Identification Product FeaturesLocal Codes UnpackingUnusually Tight Construction Determining AIR Flow for Heater LocationConfined and Unconfined Space Determining if You Have a Confined or Unconfined SpaceVentilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Smaller than that defined as anInstallation InstallationCheck GAS Type Minimum Fireplace Clearance To Combustible MaterialsIf Not Using Mantel If Using MantelMinimum Non Combustible Material Clearances Determining Minimum Mantel Clear- ance When using a Hood Mantel ClearancesDeterming Minimum Mantel Clearance Installing Heater Base Assembly Installing Damper Clamp Accessory for Vented OperationInstallation Items Needed Floor ClearancesConnecting to GAS Supply Standard Oak Log ChassisGolden Oak and Birch Model Chassis External Regulator With Vent Pointing Down Pressure Testing Gas Supply Piping System Pressure Testing Heater Gas ConnectionsChecking GAS Connections Test Pressures Equal To or Less Than 1/2 PsigInstalling Logs For Vintage Oak ModelFor Golden Oak or Birch Models For Your Safety Read Before Lighting Operating HeaterLighting Instructions Inspecting Burners Cleaning and MaintenanceObserved Problem Possible Cause Remedy TroubleshootingRefer to Air for Combustion and Venti Gas leak. See Warning statement at TopReplacement Parts SpecificationsAccessories Technical ServiceIllustrated Parts Breakdown FLAME-MAX Vintage OAK Models VYS18P and VYS24PODS Pilot KEY Part Number for VYS18P VYS24P Description QTY Parts List1A* 1A Parts List Warranty Information