Vermont Casting 360DVSL Below Grade Installation, 360DVS Series Direct Vent Fireplaces, 10006326

2” (51 mm). Secure termination to the wall with screws provided, and caulk around the wall plate to weather- proof.

One alternative to screwing the termination directly to the wallis the use of expanding plugs or an approved exterior construction adhesive.

Or, you may attach the termination with screws through the inner body into the 4” (102 mm) vent pipe; however, for this method, you must extend the 4” (102mm) pipe approximately 6” (153 mm) beyond the outer face of the wall.

Support the horizontal pipes with metal pipe straps every 36” (914mm).

Below Grade Installation

When it is not possible to meet required vent terminal clearances of 12” (305 mm) above grade level, we rec- ommend using a starter kit. It allows installation depth down to 7” (178 mm) below grade level. Measure 7” (178 mm) from the center of the horizontal vent pipe as it penetrates through the wall.

NOTE:Ensure sidewall venting clearances are ob- served. If venting system is installed below ground, we recommend a window well with adequate and proper drainage.

If installing a snorkel, a minimum 24” (610 mm) vertical rise is necessary. The maximum horizontal run with 24” (610 mm) vertical pipe is 36” (914mm). The measurement is taken from the collar of the fireplace (or transition elbow) to the face of exterior wall. See sidewall vent graph, Page 15, for extended

360DVS Series Direct Vent Fireplaces

Zero Clearance
Sleeve (if required)		7TDVSNORK
Firestop		(Snorkel)
7” Pipe	Screws	Min. 4” (102mm)
		Clearance

		(Ground)
		Window Well
24” (610mm)		Gravel
Minimum		Drain
		Foundation Wall
	• A minimum of 24” (610mm)
		vertical pipe must be installed
		when using the 7TDVSNORK
	•	Kit.
		The 22” (559mm) vertical rise
		(center to center) of the snorkel
		may be included for calculation
FP1442		of maximum horizontal run.
Fig. 28	Below grade installation.

Do not backfill around the snorkel. A clear- ance of at least 4” (102mm) must be main- tained between the snorkel and the soil.

If the foundation is recessed, use recess brackets (not supplied) for securing lower portion of the snorkel. Fas- ten brackets to wall first, then secure to snorkel with self drilling #8 x 1/2 sheetmetal screws. It will be necessary to extend vent pipes out as far as protruding wall face. (Fig. 29)

horizontal runs if the vertical exceeds 24” (610 mm).

1.	Establish vent hole through the wall. (Fig. 24)
2.	Remove soil to depth of about 16” (406 mm) below
	base of snorkel. Install window well (not supplied).
	Refill hole with 12” (305 mm) of coarse gravel, leav-
	ing a clearance of about 4” (102 mm) below snorkel.
	(Fig. 28)
3.	Install vent system.
4.	Ensure a watertight seal is made around the vent

Foundation Wall

Watertight Seal Around Pipe

Snorkel

Wall Screws

Sheet Metal Screws

CFM139

	pipe coming through the wall.
5.	Apply high-temperature sealant caulking (supplied)
	around 4 in. and 7 in. snorkel collars.
6.	Slide snorkel into vent pipes and secure to wall.
7.	Level the soil so as to maintain a 4” (102 mm) clear-
	ance below snorkel. (Fig. 29)

Fig. 29 Snorkel installation / recessed foundation.

10006326 19