P/N 472089
Rev. B 4-5-02
18
Detail H
INDOOR INST
ALLA
TIONS
MINIMAX NT LO
W NOx
VENTING GUIDELINES
;;;
;;;
v
ent ter
minated at
least 24" abo
v
e
an
y object within 10 ft.
V
ent
Cap
Ridge
Chimne
y
3 ft.
min.
2 ft.
min.
10 ft.
4'
7'
4'
Air Supply
V
entilation
Air Supply
Comb
ustion
V
ent Hood
W
alkw
a
y
3'
1' min.
1' min.
1' min.
abo
v
e
g
rade
V
ent Hood
V
ent Hood
E
H
D
F
G
G
F
B
C
A
m
ust e
xtend at least 3 ft.
higher than the
point at which it passes through the roof
,
or as per
mitted b
y
local code
.
m
ust use a doub
le-w
all v
ent pipe through
the roof penetr
ation.
m
ust ter
minate with an appro
v
ed (listed)
roof jac
k, stor
m collar
, and v
ent/w
eather cap
.
m
ust be not less than 7 ft.
abo
v
e
pub
lic w
alkw
a
y
s
.
m
ust be at least 3 ft.
abo
v
e
an
y outside air intak
e located within a 10 ft.
r
adius
.
m
ust NO
T
be within 3 ft.
of an inside cor
ner of the str
ucture
.
m
ust be at least 1 ft.
abo
v
e
g
rade
.
m
ust be located the f
ollo
wing distances a
w
a
y
from an
y door
, windo
w
, or g
ra
vity air inlet:
4 ft.
belo
w
4 ft.
hor
iz
ontally
1 ft.
abo
v
e
Air Suppl
y
See Air Supply Requirements
T
a
b
le
.
B
A
D
E
F
J
K
L
C
G
V
ent termination f
or side wall installations:
m
ust be the same diameter as the
v
ent connector
.
m
ust be suitab
le f
or use with categor
y III
appliances which ha
v
e
flue gas temper
atures
of less than 400 deg.
F
.
ma
y use a single w
all v
ent pipe with
per
manently sealed seams and joints
.
V
ent pipe e
xtension:
V
ent f
or r
oof penetration installations:
L
J
K
Recommended sources f
o
r
side w
all
V
ent Hood;
see page 15,
Section V
enting.
(T
able 2 on page 17.)
Figure 17.
Installation (Indoor)
