3
Framing and Clearances
A. Fireplace Dimensions
Outside
Air
Gas
17.83 in.
Knockout
(453 mm)
9.25 in.
(235 mm)
7.50 in.
(191 mm)
13.45 in.
(476 mm)
Figure 3.1
Fireplace Dimensions
Heatilator • MEL36, MEL42 Installation Manual • 4044-212 • Rev D • 01/06/15
21 in.
(533 mm)
18.75 in.
(476 mm)
Model #
in.
MEL36
mm
in.
MEL42
mm
C
7.37 in.
(187 mm)
D
21.37 in.
(543 mm)
B
7.50 in.
(191 mm)
(533 mm)
A
14.13 in.
(359 mm)
A
B
C
D
36
41
23.75
11.87
914
1041
603
302
42
47
29.75
14.87
1067
1194
756
378
39.50 in.
(1003 mm)
21 in.
Gas
Knockout
7.50 in.
(191 mm)
7.50 in.
(191 mm)
9.25 in.
(235 mm)
7