INSTALLATION

Continued

FLOOR CLEARANCES

A.If installing appliance on the floor level, you must maintain the minimum distance of 14" to combustibles (see Figure 8).

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

Combustible

14" Material

Min.

Noncombustible Material

Figure 8 - Minimum Fireplace Clearances

If Installed at Floor Level

Hearth

Combustible Material

5"

Min.

Figure 9 - Minimum Fireplace Clearances

Above Combustible Flooring

INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION

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

If you choose to use your heater as a manually- controlled model (no remote control installed), you may use this heater as a vented product. There are three reasons for operating your heater in the vented mode.

1.The fireplace does not meet the clearance 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 29). 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.

 

Minimum

Chimney

Permanent Flue

Height (ft.)

Opening (sq. ins.)

 

 

6' to 15'

39 sq. inches

15' to 30'

29 sq. inches

 

 

Area of Various

Standard

Round Flues

Diameter

Area

(inches)

(sq. inches)

520

629

739

851

Damper

ClampDamper

Damper

Masonry Fireplace

Manufactured

 

Fireplace

Figure 10 - Attaching Damper Clamp

12

www.desatech.com

112882-01D

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Desa VGL30PRA, VGL18NRA installation manual Floor Clearances, Installing Damper Clamp Accessory for Vented Operation

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