Installation manual
June 19, 2014 7036-188C 9
MT VERNON AE INSERT
E. Minimum Opening for Masonry & Zero
Clearance Fireplaces
Location
Inches Millimeters
A Insert side to combustible side wall 6 152
B Insert top to max. 2-1/4 inch face trim 0 0
C
Insert side to max. 2-1/4 inch face trim
00
Location Inches Millimeters
F Rear Width 24 610
G Depth 15 381
H Height 23-7/8 606
I Front Width 34 864
Figure 9.2
Figure 9.3
C. Masonry and Zero Clearance Fireplaces
Location
Inches Millimeters
D Floor protection hearth extension from
door opening
6 152
E Floor protection to the side of door
opening
6 152
D. Floor Protection
A
C
B
F. Mantel Projections
J
K
Mantel
Face
Trim
D
E
A
C
B
Side Wall
Figure 9.4
Built-In Vertical
Figure 9.1
The maximum mantel depth (J) is 12 inches (305mm)
with a minimum vertical height (K) of 12 inches (305mm).
However if your mantel has a depth of 10 inches (254mm)
then the vertical minimum height is 10 inches (254mm).
• Use a non-combustible fl oor protector, extending beneath
appliance and to the front, and sides as indicated.
• If employing a hearth extension, any parts or materials used
in construction must be non-combustible.










