Vermont Casting DVT38 installation instructions Sidewall Installation, Step

Chateau™
	20ʼ (6 m)
	Unitized Elbow
	(SK890)
			Pipe
m)			Straps
			Every 3ʼ
(4.3	Pipe Straps		(914 mm)
	Every 3ʼ
14ʼ
	(914 mm) Firestop/Zero
	Minimum 2ʼ	Clearance Sleeve
	(610 mm) Section

NOTE: Apply high temperature sealant or UL approved high temperature metal adhesive tape as directed on Page 11. If non-unitized elbows are used, also secure elbows to

straight sections with self tapping screws. FP1012a

Fig. 17 Support straps for horizontal runs.

•A minimum of 2ʼ (610mm) vertical section off the top of the unit is required, an elbow and a 1ʼ (305mm) maximum horizontal run to get through a wall. (Fig. 18)

•The maximum number of 45° elbows permitted per side wall installation is two (2). These elbows can be installed in either the vertical or horizontal run. (Fig. 19)

2'

(610mm)

C Wall Open-

L ing

2'

(610mm)

X

(DVT44) X = 7ʼ3¹⁄₄” (2216mm)

(DVT38) X = 6ʼ9⁷⁄₈” (2080mm)

FP1237a

Fig. 18 Minimum vertical run / maximum horizontal run.

	A	B
10'
(3m)
		A + B = 17' (5.2m)

FP1238

Fig. 19 Maximum vent run with elbows.

•For each 45° elbow installed in the horizontal run, the length of the horizontal run MUST be reduced by 18” (45cm). This does not apply if the 45° elbows are installed on the vertical part of the vent system. For each 90° elbow installed in the horizontal run, the length of the horizontal run MUST be reduced by 36” (91cm).

•The maximum number of elbow degrees in a system is 270°. (Fig. 20)

Example: In Figure 23				4
	Elbow 1	=	90°
	Elbow 2	=	45°
	Elbow 3	=	45°
	Elbow 4	=	90°
Total angular variation =			270°
				3
			1	2

FP1239a

Fig. 20 Maximum number of elbow degrees.

Sidewall Installation

STEP 1

Locate vent opening on the wall. It may be necessary to first position the fireplace and measure to obtain hole location. Depending on whether the wall is combustible or noncombustible, cut opening to size. (Fig. 21)

For combustible walls first frame in opening.

Combustible Walls: Cut a 16¹⁄₄”H x 16¹⁄₄” W (413mm x 413mm) hole through the exterior wall and frame as shown.

Noncombustible Walls: Hole opening must be 11¹⁄₄” (286mm) in diameter.

STEP 2

Measure wall thickness and cut zero clearance sleeve parts to proper length (MAXIMUM 12”/305 mm). As- semble sleeve using #8 sheet metal screws (supplied). (Fig. 22) Install firestop assembly. (Fig. 31)

Zero clearance sleeve is only required for combustible walls.

STEP 3

Slide the zero clearance sleeve through the wall and install the firestop on the inside surface of the wall. Secure with four (4) #8 sheet metal screws.

14 20006081