Installation
900684-01 06/2018
Innovative Hearth Products
DRT3000 Series Direct-Vent Gas Fireplaces
18
Vent Framing—Top Vent
with One 90° Elbow
NOTE:
Dimension “D” is the
required framing depth when
the finish material (drywall)
thickness is 1/2” (13mm).
Inches
(millimeters)
Framing
construction to be
2 x 4, or larger.
B
C
D
A
1/2 A
5-1/8
(130)
7 (178)
12-1/8
(308)
10-1/2
(267)
E
Table 10 - Fireplace Framing Specifications
Model
A *
B
C
D
E
33” Models
33-3/4
(857)
34-1/4
(845)
36-7/8
(930)
14-1/2
(368)
19-5/8
(499)
35” Models
35-3/8
(899)
36-1/4
(895)
38-3/4
(984)
18
(447)
23-3/8
(594)
40” Models
40-3/8
(1026)
41-1/4
(1048)
43-3/4
(1111)
18
(447)
28-1/4
(717)
45” Models
45-3/8
(1153)
41-1/4
(1048)
43-3/4
(1111)
18
(447 )
28-1/4
(717)
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.
Model
A
B
C
D
E
F
33”
33-3/4
(857)
51-1/4
(1302)
36-1/4
(921)
25-5/8
(651)
12-1/8
(308)
5-1/2
(140)
35”
35-3/8
(899)
59-1/2
(1511)
42-1/8
(1070)
30-1/4
(768)
14-1/4
(362)
6-5/8
(168)
40”
40-3/8
(1025)
63-7/8
(1622)
45-3/8
(1153)
33-1/4
(845)
15-7/8
(403)
8-1/2
(216)
45”
45-3/8
(1153)
70-3/8
(1788)
49-3/4
(1264)
35-1/4
(895)
17-1/2
(445)
10-1/4
(260)
Table 11 - Fireplace Framing Specifications—Corner Installation with Horizontal Termination
B
A
C
Inches
(millimeters)
D
E
Back wall of chase/enclosure (including finishing materials)
7
(178)
Table 12 - Fireplace Specifications
Model
A
B
C
D (door)
E
F
G
H
I
J
K
33” Models
30-1/8 (765)
26-1/4 (667)
18-3/8 (467)
30-1/2 (775)
33-5/8 (854)
21-7/8 (556)
11 (279)
31 (787)
5-3/4 (146)
14 (356)
8-1/2 (207)
35” Models
32-1/8 (816)
28-3/4 (730)
22-1/4 (565)
32-3/8 (822)
35-1/4 (895)
25 (635)
12-1/2 (317)
32-7/8 (835)
6-7/8 (175)
17 (432)
10-1/8 (257)
40” Models
37-1/8 (943)
33-1/4 (845)
27-1/4 (692)
37-3/8 (949)
40-1/4 (1022)
30 (762)
15 (381)
37-7/8 (962)
6-7/8 (175)
17 (432)
10-1/8 (257)
45”Models
37-1/8 (943)
33-1/4 (845)
27-1/4 (692)
42-3/8 (1076)
45-1/4 (1149)
35 (889)
17-1/2 (445)
42-7/8 (1089)
6-7/8 (175)
17 (432)
10-1/8 (257)
NOTE:
When finishing the area around the hood, 5/8” clearance above hood is required for hood installation.
Top View
Front View
Left Side View
Right Side View
A
B
C
D
E
F
G
H
Blower
access panel
Hood
Junction
box access
Gas line
access
I
K
J
K
