pyromaster H33BDVRRN Homeowner's Installation And Operating Manual page 11

20" (508mm)
Max.
20"
(508mm)
Max.
¡
45
Top View Cross Corner Vent
to the Left
Fig. 12 Rear vent applications.
Rear Wall Installations
STEP 1
Locate vent opening on the wall. To locate hole center
consult with appropriate fireplace dimensions, Page 4.
Frame as shown below.
Vent Opening for Combustible Wall
9 "
(240mm)
10 "
(254mm)
Vent Opening for Noncombustible Wall
7 "
(190mm)
Fig. 13 Straight out through the wall application.
10004798
Top View
Straight Venting
20"
(508mm)
Max.
¡
45
Top View Cross Corner Vent
to the Right
Framing Detail
VO584-100
Pyromaster
Combustible Walls: Cut a 10 "H (264 mm) x 9 " W
(240 mm) hole through the exterior wall and frame as
shown. (Fig.13)
Noncombustible Walls: Hole opening must be 7 "
(190 mm) in diameter. (Fig. 13)
STEP 2
Measure wall thickness and cut zero clearance sleeve
parts to proper length (MAXIMUM 12"/305 mm).
Assemble sleeve and attach to firestop with #8 sheet
metal screws (supplied).
Adjustable Zero
Clearance Sleeve
#8 Screws
(2)
Fig. 14 Adjustable zero clearance sleeve.
STEP 3
Measure from the fireplace collar or elbow face to face
of outside wall (add 2" for vent pipe overlap). Mark
pipes and cut to length. It is very important that the two
pipes are flush with the outside wall once the fireplace
is in its final location.
Zero
Clearance
Sleeve
Fig. 15 Zero clearance sleeve and firestop installation.
STEP 4
Slip 4" and 7" pipes onto respective flue collars. Make
sure to fix to the fireplace collar the 4" pipe with three
(3) screws before fixing the 7" pipe on the 7" collar.
Both pipes must be on a level plane. (Fig 16)
H33BDVRRN/P
©
Max. Length
12" (294mm)
#8 Screws
(2)
Adjustable
Zero
Clearance
Sleeve
H8
Screws
Firestop
ZCS101
Firestop
CFM133
11