Lennox DT3025 User Manual

Page 15
DR/DRH VERTICAL VENTING FIGURES
VERTICAL VENTING USING ONE 90 _ ELBOW
(DR/DRH - Rear Vent Units)
VH
1ft.min. 2ft.max.
2ft.min. 4ft.max.
3ft.min. 6ft.max.
4ft.min. 8ft.max.
V
H
V+H = 40 ft. MAX.
H = 8 ft. MAX.
Firestop/Spacer must be used any
time vent pipe passes through
combustible floor or ceiling or wall.
FIGURE 19
VERTICAL VENTING USING TWO 90 _ ELBOWS
(DR/DRH - Rear Vent Units)
VH1+H2
1ft.min. 2ft.max.
2ft.min. 4ft.max.
3ft.min. 6ft.max.
4ft.min. 8ft.max.
40 ft. max. 8 ft. max.
H2
H1
V
Firestop/Spacer must be used any
time vent pipe passes through
combustible floor or ceiling or wall.
FIGURE 20
VERTICAL VENTING USING THREE 90 _ ELBOWS
(DR/DRH - Rear Vent Units)
V1 H1
2ft.min. 4ft.max.
3ft.min. 6ft.max.
4ft.min. 8ft.max.
5ft.min. 8ft.max.
6ft.min. 8ft.max.
H1 + H2
6ft.max.
9ft.max.
12 ft. max.
15 ft. max.
17 ft. max.
1ft.min. 2ft.max. 3ft.max.
V1 + V2 =40 ft. Maximum.
H1 = 8 ft. Maximum
H1 + H2 = 17 ft. Maximum.
H2
V1
V2
H1
Firestop/Spacer must be used any
time vent pipe passes through
combustible floor or ceiling or wall.
FIGURE 21

Lennox DT3025 Specifications

General

Brand	Lennox
Model	DT3025
Category	Indoor Fireplace
Language	English