Monessen Hearth LX36DV How To Use The Vent Graph, LX Series Direct Vent Gas Fireplace, eg A

LX Series Direct Vent Gas Fireplace VENTING INSTALLATION

Termination Clearances

Termination clearances for buildings with combustible and noncombustible exteriors.

Inside Corner

	G =
G	Combustible
	6" (152 mm)

V Noncombustible 2" (51 mm)

Outside Corner

	F =
	Combustible
	6"	(152 mm)
V	Noncombustible
	2"	(51 mm)
	F

Alcove Applications*

D

C C

V

E

O

Figure 12 -

Allowable

Venting

Balcony -

with no side wall

M

V

M =

Combustible &

Noncombustible

12" (305 mm)

Balcony -

with perpendicular side wall

M

V

P

Combustible &

Noncombustible

M = 24" (610 mm)

P = 20” (508 mm)

584-15

E = Min. 6” (152 mm) for non-vinyl sidewalls Min. 12” (305 mm) for vinyl sidewalls

O = 8’ (2.4 m) Min.

No.
of Caps	DMin.	CMax.
1	3’ (914 mm)	2 x DActual
2	6’ (1.8 m)	1 x DActual
3	9’ (2.7 m)	2/3 x DActual
4	12’ (3.7 m)	1/2 x DActual

DMin. = # of Termination caps x 3

CMax. = (2 / # termination caps) x DActual

*NOTE: Termination in an alcove space (spaces open only on one side and with an overhang) is permitted with the dimensions specified for vinyl or non-vinyl siding and soffits. 1. There must be a 3’ (914 mm) minimum between termination caps. 2. All mechanical air intakes within 10’ (1 m) of a termination cap must be a minimum of 3’ (914 mm) below the termination cap. 3. All gravity air intakes within 3’ (914 mm) of a termination cap must be a minimum of 1’ (305 mm) below the termination cap.

How To Use The Vent Graph				40
		of the		38
The Vent Graph should be read in conjunction with the				36			Dimensions in
following vent installation instructions to determine the		Center		34			Feet
relationship between the vertical and horizontal dimensions				32
of the vent system.		to the		30
1. Determine the height of the center of the horizontal vent				28
pipe exiting through the outer wall. Using this dimension		ofFloortheFromUnit	PipeVentHorizontal	26
on the Sidewall Vent Graph, locate the point intersecting				24
with the slanted graph line.
				22
2. From the point of this intersection, draw a vertical line
				20
to the bottom of the graph.
				18
3. Select the indicated dimension, and position the fire-
				16
place in accordance with same.
				14
Example: If the vertical dimension from the floor of the		Dimension					eg: A
				8
Example: If the vertical dimension from the floor of the
fireplace is 11' (3.4 m) the horizontal run to the face of				12
the outer wall must not exceed 14' (4.3 m).				10
		Vertical
unit is 7’ (2.14 m), the horizontal run to the face of the				6
outer wall must not exceed 8Z\x' (2.6 m).				4
Sidewall Vent Graph showing the relationship between				2
vertical and horizontal dimensions for a Direct Vent flue				2	4	6	8 10 1214 16 1820
system.
	Figure 13 -	Horizontal Dimension From the Outside Face of the Wall
	Rear Wall Venting Graph			to the Back of the Fireplace

16 51D0528