Monessen Hearth 624DV(ST, PF, CR, CL)NVC/PVC manual Horizontal termination configurations, Adhered to

ventING installation Designer Series Gas Fireplaces

Horizontal termination configurations		40
Since it is very important that the venting system maintain its bal-		38
ance between the combustion air intake and the flue gas exhaust,		36
certain limitations as to vent configurations apply and must be strictly		34		Dimensions in
adhered to.		32
					Feet
The Vent Graph, showing the relationship between vertical and horizontal		30
side wall venting, will help to determine the various dimensions allowable.		28
Figure 22		26
Minimum clearance between vent pipes and combustible materials is
		24
3" on top and 1" from bottom and sides unless otherwise noted.		22
When vent termination exits through foundations less than 20" below siding		20
outcrop, the vent pipe must flush up with the siding.		18
It is best to locate the fireplace in such a way that minimizes the number		16
of offsets and horizontal vent length.		14			eg: A
The horizontal vent run refers to the total length of vent pipe from the		12
flue collar of the fireplace (or the top of he Transition Elbow) to the		10
face of the outer wall.		8
• The maximum number of 90° elbows per side wall instal-		6
lation is three (3). Figure 23	20"	4
• If a 90° elbow is fitted directly on top of the fireplace flange		2
the maximum horizontal vent run before the termination		2	4	6	8 10 1214 16 1820
or a vertical rise is 36” (914 mm). Figure 24
	Horizontal Dimension From the Outside Face of the
	Figure 22 - Wall to the Center of the Fireplace Vent Flange
	Rear Wall Venting Graph

3 x 90°

Elbows

3 x 90°

Elbows

FP1176

Figure 23 -

Maximum Three (3) 90° Elbows Per Installation

36"

(914 mm)

Max.

FP1177

Figure 24 -

Maximum Horizontal Run with No Rise

42D0200 19