MHSC 36CDVXTRN Installation Instructions And Homeowner's Manual page 27

4
1 + 2 + 3 + 4 = 270°
1
Fig. 56 Typical offset application.
Attic Insulation
FP1245
Shield
through the roof
90 & 45 degree
12/02
Ceiling In-
stallation
11"
Fig. 57 Place firestop spacer(s) and secure.
20012253
Max. 8' (2.4m)
3
2
Joist
Upper Floor
11"
Joist
Firestop Spacer
Nails (4)
CFM100a
CFM100
Firestop-Vertical
09/20/00
CDVX Series Direct Vent Gas Fireplace
8. Install appropriate pipe sections until the venting is
above the flashing. (Fig. 58)
9. Install storm collar and seal around the pipe.
10. Add additional vent lengths for proper height. (Fig.
60)
11. Apply high temperature sealant to 4" and 7" collars.
Typical Roof Support
Application
Fig. 58 Roof and ceiling supports.
FP1245
Fig. 59 Roof flashing.
Fig. 60 Minimum termination to roof clearance.
If there is a room above ceiling level,
firestop spacer must be installed on both
the bottom and the top side of the ceiling
joists. If an attic is above ceiling level a
7DVAIS (Attic Insulation Shield) must be
installed.
The enlarged ends of the vent section
always face downward. (Fig. 59)
Typical Ceiling Sup-
port Application
CFM110
#8 Sheet Metal Screws
Typical ceiling/roof support
(3 per joint)
Sealant
10/90
Storm Collar
TWL101a
Twist Lock Pipe
Min.
2/8/99 djt
2' (610 mm)
CFM190
TTR Ternim. 2'
1/25/02 sta
CFM110
TWL101a
CFM190
27