Superior Fireplaces DRT3535DEN Installation And Operation Instruction Manual page 18

Innovative Hearth Products
DRT/DRC3500 Series Direct-Vent Gas Fireplaces
Table 10 - Fireplace Framing Specifications
Model A *
35-3/8
35" Models
(899)
40-3/8
40" Models
(1026)
45-3/8
45" Models
(1153)
C = Minimum height of top vent installations
E = Minimum height of rear vent installations
* Minimum opening size; additional 1/8" per side is recommended.
NOTE: Framing specifications do NOT apply for flexible venting.
When using flexible venting, refer to the kit requirements for framing
specifications.
Table 11 - Fireplace Framing Specifications - Corner Installation with Horizontal Termination
Model A
35-3/8 59-1/2
35"
(899) (1511)
40-3/8 63-7/8
40"
(1026) (1622)
45-3/8 70-3/8
45"
(1153) (1788)
Table 12 - Fireplace Specifications
F
G
Top View
Model A
35" Models 32-1/8 (816)
40" Models 37-1/8 (943)
45"Models 37-1/8 (943)
18
B C
36-1/4 38-3/4
(920) (984)
41-1/4 43-3/4
(1148) (1111)
41-1/4 43-3/4
(1148) (1111)
B C D
42-1/8 30-1/4
(1070) (768)
45-3/8 33-1/4
(1153) (845)
49-3/4 35-1/4
(1264) (895)
NOTE: When finishing the area around the hood, 5/8" clearance above hood is required for hood installation.
I
A
K
B C D (door)
28-3/4 (730) 22-1/4 (565) 32-3/8 (822)
33-1/4 (845) 27-1/4 (692) 37-3/8 (949)
33-1/4 (845) 27-1/4 (692) 42-3/8 (1076)
D E
NOTE: Dimension "D" is the
required framing depth when
18 23-3/8
(447) (594) the finish material (drywall)
thickness is 1/2" (13mm).
18 28-1/4
(447) (717)
Vent Framing—Top Vent
with One 90° Elbow
18 28-1/4
(447) (717)
B
Inches (millimeters)
E F
Front to rear with 1" distance to wall
14-1/4 6-5/8
(362) (168)
15-7/8 8-1/2
(403) (216)
17-1/2 10-1/4
(445) (260)
Back wall of chase/enclosure (including finishing materials)
E
C
D
B
Blower
access panel
H
Front View
E F
35-1/4 (895) 25 (635)
40-1/4 (1022) 30 (762)
45-1/4 (1149) 35 (889)
C
E
D
1/2 A
A
E
C
A
B
J
Hood
Junction
box access
Gas line
access
Left Side View
G H I
12-1/2 (317) 32-7/8 (835) 6-7/8 (175)
15 (381) 37-7/8 (962) 6-7/8 (175)
17-1/2 (445) 42-7/8 (1089) 6-7/8 (175)
Installation
900298-00, 02/2018
Framing
construction to be
10-1/2
2 x 4, or larger.
(267)
7 (178)
5-1/8
12-1/8
(130)
(308)
F
7 (178)
D
Inches
(millimeters)
K
Right Side View
J K
17 (432) 10-1/8 (258)
17 (432) 10-1/8 (258)
17 (432) 10-1/8 (258)