VFI Series User's Manual
VFI33 Vent Free Gas Fireplace System
20307670
9
CLEARANCES
HEAT RESISTANT MATERIAL (MINIMUM 
REQUIREMENTS) WITH NO WOODEN MANTEL 
OR OTHER COMBUSTIBLE PROJECTION
Heat resistant material (minimum requirements) with 
wooden mantel or other combustible projection:
To install the heater with a wooden mantel shelf or other 
combustible projection above, fi rst measure the heat resis-
tant material shown in Figure 6.
No combustible 
materials within 8" 
of opening. 
Hood
Grate
Figure 6 - 
Measure Heat Resistant Material for Mantel
Example: A mantel may project from the wall a maximum of 
2
1
⁄2" at minimum of 8" above the opening, and a maximum of 
12" at a minimum of 26" above the opening.
10"
12"
14"
26"
8"
12"
10"
8"
6"
256O”
Figure 7 - 
Minimum Mantel Clearances
Figure 8 is an example of an unsafe mantel installation. 
The mantel projects 4" at 8" above the opening, exceed-
ing the maximum acceptable distance of 2
1
⁄2". The mantel 
also projects 8" at 10" above the opening, exceeding the 
maximum acceptable distance of 6".
If your mantel profi le is unsafe, you may either:
•  Raise the mantel to an acceptable height or,
•  Remove the mantel.
8"
4"
2
1
/
2
"
10"
6"
8"
Hood
No combustible 
materials within 8" 
of opening.
Figure 8










