Vermont Casting 36CDVTRN ユーザーズマニュアル

25

1

2

3

4

Max. 8' (2.4m)

FP1245

through the roof

90 & 45 degree 

12/02

1 + 2 + 3 + 4 = 270°

FP1245

Fig. 51  Typical offset application.

1.  Locate your fireplace.
2.  Plumb to center of the (4” (102 mm) flue collar 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 at least 9³⁄₈” x 9³⁄₈” (240 x 240 mm).

5.  Place fireplace into position.
6.  Place firestop(s) #7DVFS or Attic Insulation Shield 

#7DVAIS into position and secure. (Fig. 52)

7.  Install roof support (Fig. 53) and roof flashing making 

sure upper flange of flashing is below the shingles. 
(Fig. 53)

8.  Install appropriate pipe sections until the venting is 

above the flashing. (Fig. 53)

9.  Install storm collar and seal around the pipe.

CFM100 

Firestop-Vertical

09/20/00

11"

11"

Joist

Joist

Upper Floor

Firestop Spacer

Nails (4)

CFM100a

Fig. 52  Place firestop spacer(s) and secure.

CFM110

Typical ceiling/roof support

10/90

CFM110

Fig. 53  Roof and ceiling supports.

TWL101a

Twist Lock Pipe

2/8/99   djt

#8 Sheet Metal Screws

(3 per joint)

Sealant

Storm Collar

TWL101a

Fig. 54  Roof flashing.

10. Add additional vent lengths for proper height. (Fig. 

55)

11. Apply high temperature sealant to 4” and 7” collars.