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Heatilator • CD4236IFTR, CD4236IFTLR, CD4842IFTR, CD4842IFTLR Installation Manual • 2511-980 Rev. M
• 8/21
Figure 3.6 Clearances to Combustibles
C
B
D
A
COMBUSTIBLE FLOORING MAY BE INSTALLED
NEXT TO THE FRONT OF THE APPLIANCE.
* Adjust framing dimensions for interior sheathing (such as sheetrock)
C** Add 12 inches for rear venting with one 90º elbow.
G*** For installations with vinyl flooring, see Section 3.D.
*
MINIMUM FRAMING DIMENSIONS
Models
A
B
C**
D
E
F
G***
H
I
J
Rough
Opening
(Width)
Rough
Opening
(Height)
Rough
Opening
(Depth)
Rough
Opening
(Width)
Clearance
to Ceiling
Combustible
Floor
Combustible
Flooring
Behind
Appliance
Sides of
Appliance
Front of
Appliance
CD4236 Series
in.
10
40-1/8
22
42
32
0
0
1/2
1/2
36
mm
254
1019
559
1067
813
0
0
13
13
914
CD4842 Series
in.
10
42-1/8
22
49
32
0
0
1/2
1/2
36
mm
254
1070
559
1245
813
0
0
13
13
914
F
G
H
I
J
E