CLEARANCES AND HEIGHT REQUIREMENTS

WARNING

The dimensions shown in Figures 5 and 8 and defined in the fireplace manufacturer's instructions are minimum clearances to maintain when installing this heater. Left and right clearances are determined when facing the front of the heater.

Follow these instructions carefully to ensure safe installation. Failure to follow instructions exactly can create a fire hazard.

NOTE: Clearances are necessary to combustible surfaces only. No clearance is necessary for noncombustible surface.

Sidewall clearances: The clearance from the inside of the appliance to any combustible adjacent wall should no be less than 9." See Figure 5.

Ceiling clearance: The ceiling must be at least 42" from the top of the firebox opening. See Figure 5.

Back wall clearance: The appliance can be placed against the combustible back wall.

Floor clearance: The fireplace may not be installed onto any combustible flooring material, such as carpeting, vinyl or tile without the hearth or a minimum 22 GA (0.030") metal or a minimum 1/2" wooden base covering the entire width and depth of the base.

Mantel clearances: The canopy supplied with the unit must be installed. If a combustible mantel is installed. It must meet the clearance requirements shown in Figure 8.

Minimum42"

Minimum9"

Minimum9"

Figure 5 - Sidewall and Ceiling Minimum

Clearances

A

33" B

22

 

3

 

/

 

"

 

4

 

 

 

23

 

7

 

/

 

 

"

 

 

8

 

 

 

 

"4

1/

15

 

Accessory Face Plates

 

A

B

Small

33"

43"

Large

36"

50"

 

 

 

BEFORE INSTALLING THE FIREPLACE INSERT

Have fireplace floor and chimney professionally cleaned to remove ashes, soot, creosote or other obstructions. Close and seal any fresh air vents or ash clean-out doors located on floor or wall

Figure 6 - Dimensions for Installing in Masonry Fireplace or a UL Listed Box

23D8036

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MartinLogan 33ISDG operating instructions Clearances and Height Requirements, Before Installing the Fireplace Insert