temco-tool 33tdvdsn User Manual

18

When installing the 33TDVDSN with a Vertical Through-
the-Roof configured flue system the restrictor plate, 
(#10002495) supplied with the appliance MUST BE 
FITTED TO THE APPLIANCE at installation.
Install restrictor plate to firebox top using two (2) 
screws.

The legs of 

the restrictor 

plate must 

go up.

Fig. 31  Place restrictor with legs pointing up.

T265

33TDV

restrictor Plate

10/04

T265

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 
240mm).

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

#7DVAIS into position and secure. (Fig. 32)

7.  Install roof support (Fig. 33) and roof flashing making 

sure upper flange of flashing is below the shingles. 
(Fig. 34)

8.  Install appropriate pipe sections until the venting is 

above the flashing. (Fig. 34)

9.  Install storm collar and seal around the pipe.
10. Add additional vent lengths for proper height. (Fig. 

35)

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

CFM100a 

Firestop-Vertical

11"

(279mm)

11"

(279mm)

Joist

Joist

Upper Floor

Firestop Spacer

Nails (4)

CFM100a

Fig. 32  Place firestop spacer(s) and secure.

TWL101a

Twist Lock Pipe

2/8/99   djt

#8 Sheet Metal Screws

(3 per joint)

Sealant

Storm Collar

TWL101a

Fig. 34  Roof flashing.

NOTE: If the vertical rise is greater than 16’, then RP 
Kit 255, Fresh Air Baffle, must be installed on the unit. 
(Not Supplied)

CFM110

Typical ceiling/roof support

10/90

Fig. 33  Roof and ceiling supports.

CFM110