Vermont Castings CSDV30NVEMBCSB, Installation And Operating Instructions Manual

20306757

17

CSDV Series Direct Vent Gas Stove

HOT

H

V

ST1139
Horizontal termination

VENTING INSTALLATION 

Figure 18 - 

Horizontal Termination Configuration for Rigid Venting 

Using One (1) 90° Elbow

NOTE:

 Add 1/4" rise per 12" horizontal length of pipe.

NOTE:

 This configuration is for use with corner 

installation also. 

H

1

H

V

ST1140
Horiz term 2 elbows

Figure 19 - 

Horizontal Termination Configuration for Rigid Venting 

Using Two (2) 90° Elbows

NOTE:

 Add 1/4" rise per 12" horizontal length of pipe.

Table 2: Horizontal Venting

Maximum Horizontal (H)

Minimum Vertical (V)

24" (610 mm)

52

1

⁄

2

" (1334 mm)

20' (6 m)

98

1

⁄

4

" (2495 mm)

Table 3: Horizontal Venting with Two (2) 90°

 Elbows

Maximum Horizontal 

(H+H

1

)

Minimum Vertical (V)

24" (610 mm)

52

1

⁄

2

" (1334 mm)

20' (6 m)

98

1

⁄

4

" (2495 mm)

INSTALLATION FOR VERTICAL TERMINA

-

TION

1. Determine the route your vertical venting will take. 

If ceiling joist, roof rafters or other framing will 

obstruct the venting system, consider an offset. 

Refer to Figure 22 

to avoid cutting load bearing mem-

bers. 

NOTE:

 Pay special attention to these installation instructions 

for required clearances (air space) to combustibles when 

passing through ceilings, walls, roofs, enclosures, attic 

rafters, etc. Do not pack air spaces with insulation. Also 

note maximum vertical rise of the venting system and any 

maximum  horizontal  offset  limitations.  Offsets  must  fall 

within the parameters shown on 

Page 14, Figure 11.

2.  Set stove in desired location. Drop a plumb line down 

from the ceiling to the position of the burner system exit 

flue. Mark the center point where the vent will penetrate 

the ceiling. Drill a small locating hole a this point. 

  Drop a plumb line from the inside of the roof to the locat-

ing hole in the ceiling. Mark the center point where the 

vent will penetrate the roof. Drill a small locating hole 

at this point. 

FLAT CEILING INSTALLATION

1.  Cut a 9

1

⁄

2

" (241 mm) square hole in the ceiling using the 

locating hole as a center point The opening should be 

framed to 9

1

⁄

2

" x 9

1

⁄

2

" (241 x 241 mm) inside dimensions 

as shown in 

Figure 24

 using framing lumber the same 

size as the ceiling joist. If the area above the ceiling is 

an insulated ceiling or a room, nail firestop from the top 

side. This prevents loose insulation from falling into the