57
Figure 21
shows minimum clearances that must be used for non-direct venting terminations.
NON-DIRECT VENT TERMINATION CLEARANCES
GENERAL VENTING REQUIREMENTS AND
GUIDELINES
FIGURE 21
VENT TERMINATION CLEARANCES FOR NON-DIRECT VENT INSTALLATIONS
K
D
E
L
B
C
F
G
A
B
J
A
M
I
H
IN
S
I
DE
COR
N
ER
DETA
I
L
VE
N
T
TERM
IN
AL
A
I
R
SUPPLY
IN
LET
AREA
WHERE
TERM
IN
AL
I
S
N
OT
PERM
I
TTED
F
i
x
ed
C
l
osed
O
p
e
r
ab
l
e
B
F
i
x
ed
C
l
osed
O
p
e
r
ab
l
e
B
B
A
=
C
l
ea
r
a
n
ce
abo
v
e
gr
ade,
v
e
r
a
n
da,
p
o
r
ch,
deck
o
r
ba
l
co
ny
B
=
C
l
ea
r
a
n
ce
to
w
i
n
do
w
o
r
doo
r
that
m
a
y
be
o
p
e
n
ed
C
=
C
l
ea
r
a
n
ce
to
p
e
rm
a
n
e
n
t
ly
c
l
osed
w
i
n
do
w
D
=
Ve
r
tica
l
c
l
ea
r
a
n
ce
to
v
e
n
ti
l
ated
soffit
l
ocated
abo
v
e
the
te
rm
i
n
a
l w
ithi
n
a
ho
r
i
z
o
n
ta
l
dista
n
ce
of
2
feet
(0
.
6
m
)
f
r
o
m
the
ce
n
te
r l
i
n
e
of
the
te
rm
i
n
a
l
E
=
C
l
ea
r
a
n
ce
to
unv
e
n
ti
l
ated
soffit
F =
C
l
ea
r
a
n
ce
to
o
u
tside
co
rn
e
r
G
=
C
l
ea
r
a
n
ce
to
i
n
side
co
rn
e
r
H
=
C
l
ea
r
a
n
ce
to
each
side
of
ce
n
te
r l
i
n
e
e
x
te
n
ded
abo
v
e
m
ete
r / r
e
gul
ato
r
asse
m
b
ly
I =
C
l
ea
r
a
n
ce
to
se
rv
ice
r
e
gul
ato
r v
e
n
t
o
u
t
l
et
J
=
&OHDUDQFHWRQRQíPHFKDQLFDODL
r
s
upply
i
nl
et
to
b
u
i
l
di
ng
o
r
the
co
m
b
u
stio
n
ai
r
i
nl
et
to
a
ny
othe
r
a
ppl
ia
n
ce
K =
C
l
ea
r
a
n
ce
to
m
echa
n
ica
l
ai
r
s
upply
i
nl
et
L
=
C
l
ea
r
a
n
ce
abo
v
e
p
a
v
ed
side
w
a
l
k
o
r p
a
v
ed
d
r
i
v
e
w
a
y
l
ocated
o
n pu
b
l
ic
pr
o
p
e
r
t
y
M
=
C
l
ea
r
a
n
ce
un
de
r v
e
r
a
n
da,
p
o
r
ch,
deck
o
r
ba
l
co
ny
US
In
sta
ll
atio
n
s
1
Ca
n
adia
n In
sta
ll
atio
n
s
2
12
i
n
ches
(305
mm
)
o
r
12
i
n.
305
mm
)
abo
v
e
a
v
e
r
a
g
e
s
n
o
w
acc
umul
atio
n.
4
feet
(1
.
2
m
)
be
l
o
w
o
r
to
side
of
o
p
e
n
i
ng;
1
foot
(30c
m
)
abo
v
e
o
p
e
n
i
ng
6
i
n
ches
(15c
m
)
fo
r
a
ppl
ia
n
ces
<
10,000
Bt
u
h
(3k
w
),
12
i
n
ches
(30c
m
)
fo
r
a
ppl
ia
n
ces
>
10,000
Bt
u
h
(3k
w
),
a
n
d
<
100,000
Bt
u
h
(30k
w
),
36
i
n
ches
(
.
9
m
)
fo
r
a
ppl
ia
n
ces
>
100,000
Bt
u
h
(30k
w
)
*
12"
(30c
m
)
*
3
ft
.
(
.
9
m
),
10
ft
.
(3
.
05
m
)
pr
efe
rr
ed
*
7
feet
(2
.
1
m
)
3
feet
(
.
9
m
)
w
ithi
n
a
hei
g
ht
15
feet
(4
.
5
m
)
abo
v
e
the
m
ete
r / r
e
gul
ato
r
asse
m
b
ly
*
3
feet
(
.
9
m
)
6
i
n
ches
(15c
m
)
fo
r
a
ppl
ia
n
ces
<
10,000Bt
u
h
(3k
w
),
12
i
n
ches
(30c
m
)
fo
r
a
ppl
ia
n
ces
>
10,000
Bt
u
h
(3k
w
)
a
n
d
<
100,000
Bt
u
h
(30k
w
),
36
i
n
ches
(
.
9
m
)fo
r
a
ppl
ia
n
ces
>
100,000
Bt
u
h
(30k
w
)
3
feet
(
.
9
m
)
abo
v
e
if
w
ithi
n
10
feet
(3
m
)
ho
r
i
z
o
n
ta
lly
6
feet
(1
.
8
m
)
1
In
acco
r
da
n
ce
w
ith
the
c
urr
e
n
t
A
N
S
I
Z223
.
1
/NF
PA
54
N
at
ur
a
l Fu
e
l
Gas
Code
2
In
acco
r
da
n
ce
w
ith
the
c
urr
e
n
t
CSA
B149
.
1,
N
at
ur
a
l
Gas
a
n
d
P
r
o
p
a
n
e
In
sta
ll
atio
n
Code
*F
o
r
c
l
ea
r
a
n
ces
n
ot
s
p
ecified
i
n
A
N
S
I
Z223
.
1
/NF
PA
54
o
r
CSA
B149
.
1,
c
l
ea
r
a
n
ce
w
i
ll
be
i
n
acco
r
da
n
ce
w
ith
l
oca
l
i
n
sta
ll
atio
n
codes
a
n
d
the
r
e
qu
i
r
e
m
e
n
ts
of
the
g
as
s
uppl
ie
r
a
n
d
these
i
n
sta
ll
atio
n
i
n
st
ru
ctio
n
s
.
"
*
12"
(30c
m
)
*
E
qu
a
l
to
o
r gr
eate
r
tha
n
soffit
de
p
th
*
3"
(0
.
9
m
)
*
E
qu
a
l
to
o
r gr
eate
r
tha
n
soffit
de
p
th
* N
o
m
i
n
i
mum
to
o
u
tside
co
rn
e
r
* N
o
m
i
n
i
mum
to
o
u
tside
co
rn
e
r
3
feet
(
.
9
m
)
w
ithi
n
a
hei
g
ht
15
feet
(4
.
5
m
)
abo
v
e
the
m
ete
r / r
e
gul
ato
r
asse
m
b
ly
3
feet
(
.
9
m
)
*
*
2"
(0
.
6
m
)
*
3
ft
.
(
.
9
m
),
10
ft
.
(3
.
05
m
)
pr
efe
rr
ed
4
feet
(1
.
2
m
)
be
l
o
w
o
r
to
side
of
o
p
e
n
i
ng;
1
foot
(30c
m
)
abo
v
e
o
p
e
n
i
ng
mu
st
co
n
fo
rm
to
CSA
B149
.
1
-
10,
Sect
.
8
.
14
.
(30c
m
)
†
A
v
e
n
t
sha
ll n
ot
te
rm
i
n
ate
l
ess
tha
n
7
ft
.
(2
.
1
m
)
abo
v
e
a
p
a
v
ed
side
w
a
l
k
o
r p
a
v
ed
d
r
i
v
e
w
a
y
that
is
l
ocated
o
n pu
b
l
ic
pr
o
p
e
r
t
y.
‡
Pe
rm
itted
o
nly
if
v
e
r
a
n
da,
p
o
r
ch,
deck
o
r
ba
l
co
ny
is
f
ull
o
p
e
n
o
n
a
m
i
n
i
mum
of
t
w
o
sides
be
n
eath
the
f
l
oo
r.
We
r
ecco
mm
e
n
d
a
v
oidi
ng
this
l
ocatio
n
if
p
ossib
l
e
.
Ve
nting
ST-A1194-19 FIG A
Summary of Contents for 95MSP series
Page 34: ...34 Field Conversions ...
Page 35: ...35 Field Conversions ...
Page 36: ...36 Field Conversions ...
Page 37: ...37 Field Conversions ...
Page 38: ...Field Conversions 38 ...
Page 99: ...99 ...
Page 100: ...100 CM 0716 ...
