Monessen Hearth MJ27PR Manuel D’Utilisation

12 

FP1997
heat resistant material

Heat Resistant 

Material

Heater in Fireplace 

or Firebox

FP1997

Measure 

This 

Distance

Heat resistant material (minimum requirements) with no wooden mantel or other combustible projection: 
To install the gas logs into a fireplace with no wooden mantel, shelf or other combustible projection above the 

fireplace opening, measure the heat resistant material height, per Figure 5, then see TABLE A.
Heat resistant materials such as slate and marble must 

installed onto combustible material.
IMPORTANT: If you cannot meet these minimum clearances you must operate the heater with chimney flue 

damper open. Refer to “Installing Vented Applications” found on Page 18.

 

  12" or more 

Hood not required

  8" to less than 12" 

Extend heat resistant material to 12" 

OR install hood.  

   

 

Refer to Figure 5

  Less than 8" 

Extend heat resistant material to 8" 

AND install hood.  

   

 

Refer to Figure 5. 

OR, extend heat resistant material  

   

 

to a height of at least 12"