INSTALLATION

Check Gas Type Installation and Clearances

7

INSTALLATION

Continued

WARNING: Seal any fresh air vents or ash clean- out doors located on floor or wall of fireplace. If not, drafting may cause pilot outage or sooting. Use a heat-resistant sealant. Do not seal chimney flue damper.

WARNING: Never install the heater

in a bedroom or bathroom unless installed as a vented appliance, see page 10

in a recreational vehicle

where curtains, furniture, clothing, or other flam- mable objects are less than 42 inches from the front, top, or sides of the heater

in high traffic areas

in windy or drafty areas

MINIMUM FIREPLACE CLEARANCE TO

COMBUSTIBLE MATERIALS

Log Size

Side Wall

Ceiling

 

 

 

27"

16"

42"

 

 

 

LOG SIZING REQUIREMENTS

Log

Minimum Firebox

Size

Height

Depth

Width

 

 

 

 

27"

17"

19"

32"

 

 

 

 

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

CAUTION: This heater creates warm air currents. These currents move heat to wall surfaces next to heater. Installing heater next to vinyl or cloth wall coverings or operating heater where impurities (such as, but not limited to, tobacco smoke, aromatic candles, cleaning fluids, oil or kerosene lamps, etc.) in the air exist, may discolor walls or cause odors.

IMPORTANT: Vent-free heaters add moisture to the air. Although this is beneficial, installing heater in rooms without enough venti- lation air may cause mildew to form from too much moisture. See Air for Combustion and Ventilation, pages 4 through 6.

CHECK GAS TYPE

Use only the correct type of gas (natural or propane/LP). If your gas supply is not the correct gas type, do not install heater. Call dealer where you bought heater for proper type heater.

INSTALLATION AND CLEARANCES

(Vent-Free Operation Only)

WARNING: Maintain the minimum clearances. If you can, provide greater clearances from floor, ceil- ing, and adjoining wall.

Minimum Clearances For Side Combustible Mate- rial, 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 firebox, follow firebox manufacturer’s instructions for minimum clear- ances 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

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, noncombustible material above fire- place opening is not needed. Go to Installing Damper Clamp Accessory for Vented Operation, page 9.

For more information, visit www.desatech.com

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Desa VML27NR Minimum Fireplace Clearance to Combustible Materials, LOG Sizing Requirements, Check GAS Type

VML27NR specifications

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