Vermont Casting DVBR36 사용자 설명서

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FP1179

Fig. 42   Maximum elbow usage.

FP1184
Typical roof/ceiling
support apps.

FP1184

Fig. 44  Venting supports.

Joist

Upper Floor

11”

Firestop 
Spacer

Nails (4)

Fig. 43  Place firestop spacer(s) and secure.

VR404

11”

5.   Place firestop(s) #7DVFS into position and secure. 

(Fig. 43)

6.   Install roof support (Fig. 44) and roof flashing 

making sure upper flange of flashing is below the 
shingles. (Fig. 46)

7.   Install appropriate pipe sections until above the 

flashing. (Fig. 46)

8.   Install storm collar and seal around the pipe.
9.   Add additional vent lengths for proper height. 
10. Apply high temperature sealant to 4” and 7” collars 

of vent termination and  install.

If there is a room above ceiling level, firestop spacers 
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.

Max. Height 40’ (12.2m)

Min. Height 8’ (2.4m)

Max. 10’ (3m)

FP1183

Max. Height 

40’ (12.2m)

Min. Height 8’ 

(2.4m)

Max. 10’ (3m)

Fig. 41   Support straps for horizontal runs.

1.   Locate your fireplace.
2.   Plumb to center of the (4”) 90° transition elbow 

(7DVRT90) from ceiling above and mark position.

3.   Cut opening equal to 9³⁄₈" x 9³⁄₈" (240 x 240 mm).
4.   Proceed to plumb for additional openings through 

the roof. In all cases, the opening must provide a 
minimum of 1” (25 mm) clearance to the vent pipe, 
i.e., the hole must be a minimum of  9³⁄₈" x 9³⁄₈" (240 
x 240 mm).