How To Use The Vent Graph; Sidwall Venting Graph; Vertical Sidewall Installation - Vermont Castings DVRS3 Installation Instructions & Homeowner's Manual

HOW TO USE THE VENT GRAPH

1. Determine the height of the centre of the horizontal
vent pipe exiting through the outer wall. Using this
dimension on the Sidewall Vent Graph (Fig. 18),
locate the point it intersects with the slanted graph
line.
2. From the point of this intersection, draw a vertical
line to the bottom of the graph.
3. Select the indicated dimension, and position the
fireplace in accordance with same.
A:
EXAMPLE
If the vertical dimension from the floor of the unit is 11
feet (3352mm) the horizontal run to the face of the outer
wall must not exceed 14 feet (4267mm).
EXAMPLE B:
If the vertical dimension from the floor of the unit is 7 feet
(2133mm), the horizontal run to the face of the outer wall
must not exceed 8-1/2 feet (2590mm).
VERTICAL SIDEWALL VENTING GRAPH
(Dimensions in Feet)
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
SEE PAGE 14 FOR VENTING
REQUIREMENTS FOR SNORKELS.
eg: A
eg: B

VERTICAL 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 non-
combustible, cut opening to size. Fig. 19.
(For combustible walls first frame in opening).
VERTICAL SIDEWALL APPLICATION
Vent Opening —
Combustible Wall
9-
(240mm)
Vent Opening —
Noncombustible Wall
(190mm)
COMBUSTIBLE WALLS (Fig. 19): Cut a 9-3/8"H x 9-3/8"W (240
mm x 240 mm) hole through the exterior wall and frame as shown
NON-COMBUSTIBLE WALLS (Fig. 19): Hole opening must be
7.5" (190 mm) in diameter.
STEP 2
Fiig. 20. Measure wall thickness and cut adjustable zero
clearance sleeve parts to proper length (MAXIMUM 12"/
305mm). Adjust sleeve to minimum (9-3/8" x 9-3/8") and
attach to firestop with #8 sheet metal screws (supplied).
Install firestop assembly.
Fig. 18
- 12 -
(240mm)
9- "
3/8
"
3/8
7- "
1/2
Zero clearance sleeve is only required for
combustible walls.
(framing detail)
Fig. 19