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11. For CFM only: Install Charcoal Gray Pipe Rings 
(#7FSDRG) or Polished Brass Pipe Rings (#7FSDRP) 
at pipe joints, if desired.

Install Snorkel Kit #7FSDVSKS when it is not possible 
to meet the required vent termination clearances of 12” 
(305 mm) above grade level. The snorkel kit will allow 
installation depth of down to 7” (178 mm) below grade 
level. The seven inches is measured from the center of 
the horizontal vent pipe as it penetrates the wall. If the 
venting system is installed below grade, a window 
well must be installed with adequate and proper 
drainage. (Fig. 31)

NOTE: Be sure to maintain side wall clearances and 
vent run restrictions. Refer to Page 6, Figures 3, 4, 5, 6.

1.  Establish the vent hole through the wall.
2.  Remove soil to a depth of approximately 16” (406 mm) 

below the base of the snorkel. Install a window well 
(not supplied). Refill the hole with 12” (305 mm) of 
coarse gravel and maintain a clearance of at least 4” 
(102 mm) below the snorkel. (Fig. 31)

3.  Install the vent system as described on Pages 16-18.
4.  Be sure to make a watertight joint around the vent 

pipe joint at the inside and outside wall joints.

5.  Apply high temperature sealant around the inner 

and outer snorkel collars. Join the pipes and fasten 
the snorkel termination to the wall with the screws 
provided.

6.  Level the soil to maintain a 4” clearance below the 

snorkel.

  If the foundation is recessed, use extension brack-

ets (not supplied) to fasten the lower portion of the 
snorkel. Fasten the brackets to the wall first, and 
then fasten to the snorkel with self-tapping #8 x 1/2” 
sheet metal screws. Extend the vent pipes out as far 
as the protruding wall face. (Fig. 31)

ST219

snorkel detail

12/6/99   djt

Recessed Wall

Sheet Metal 

Screws and 

Bracket

Wall Screws 

and Anchors

Waterproof Seal 

Around Pipe

ST219

Fig. 30  Use extension brackets to mount snorkel against 
recessed wall.

Firestop

Finishing 

Collar

7” Pipe

Wall Plate

ST653

install snorkel

4/20/01   djt

RADIANCE

Waterproof Seal 

Around Pipe

Firestop

Window Well

Drain

4” Clearance

Snorkel 

Termination 

Cap

Wall Screws 

and Anchors

ST653

Gravel

Fig. 31  Snorkel kit installation.

Make certain the vent system conforms to all other 
requirements for vertical termination as specified on 
Page 9.
This installation will require you to first determine the 
roof pitch and use the appropriate vent components.  
Refer to Figure 11 on Page 10.
1.  Locate the final position of the stove, observing all 

clearances for both the vent and the stove.

2.  Plumb to the center of the inner (4”) flue collar from 

the ceiling above, and mark that location.

3.  Cut the opening: 
   CFM System:  9³⁄₈” x 9³⁄₈” (240 x 240 mm)
   DuraVent System: 10” x 10” (254 x 254 mm)
4.  Plumb any additional opening through the roof or 

other construction that may be needed. In all cases, 
the opening must provide a minimum of 1” (25 mm) 
clearance to the vent pipe.

5.  Place the stove in its final position.
6.  Install firestop(s) #7DVFS and Attic Insulation Shield 

#7DVAIS as needed. (Fig. 32) If there is a room 
above ceiling level, a firestop must be installed on 
both the bottom and top sides of the ceiling joists. 
If an attic is above ceiling level, an attic insulation 
shield must be installed.