12
18-DE01D1-8
Installer’s Guide
O
f
ten, h
o
useh
o
ld
c
hemi
c
als
co
ntain
c
hl
o
ride
-
bearing
co
mp
o
unds. There are many
co
mp
o
unds representative
of
this
c
lassi
f
i
c
ati
o
n
of
c
hemi
c
als.
A
f
ew
co
mm
o
n ex
-
amples are listed bel
o
w.
-
Cleaning s
o
lvents
- V
arnish and paint rem
o
vers
-
Blea
c
hes
-
Fabri
c
s
of
teners
-
W
ater s
of
tener salt
-
Tile adhesives
A
v
o
id st
o
ring
o
r using these
c
hemi
c
als within
c
l
o
se
pr
o
ximity t
o
the
f
urna
c
e. In additi
o
n, av
o
id st
o
ring
o
r
using any
c
hemi
c
als,
of
an unkn
o
wn and p
o
ssibly
f
lam
-
mable nature, in
c
l
o
se pr
o
ximity t
o
the
f
urna
c
e. I
f
it is
ne
c
essary t
o
st
o
re
o
r use
c
hemi
c
als in the same spa
c
e
as the
f
urna
c
e, the area sh
o
uld be well
-
ventilated and
all
co
ntainers sh
o
uld be sealed when n
o
t in use. I
f
p
o
s
-
sible, keep
c
hemi
c
als in a separate, well ventilated,
r
oo
m
c
l
o
sed
off
f
r
o
m the
f
urna
c
e with a d
oo
r.
The
f
urna
c
e shall be installed in a l
oc
ati
o
n within the
building that permits a satis
f
a
c
t
o
ry supply
of
air
fo
r
co
mbusti
o
n, ventilati
o
n, and pr
o
per
o
perati
o
n
of
the
venting system.
W
hile all
fo
rms
of
building
co
nstru
c
ti
o
n
c
ann
o
t be
co
vered in detail in this installer
'
s guide, this
requirement may usually be met by appli
c
ati
o
n
of
o
ne
of
the
fo
ll
o
wing meth
o
ds in
o
rdinary building
co
nstru
c-
ti
o
n. H
o
wever, appli
c
able l
oc
al installati
o
n
co
des
a
l
-
w
a
y
s
take pre
c
eden
c
e and shall be
fo
ll
o
wed.
The
co
ntent
of
c
ertain pertinent passages
of
NFP
A
31
-
2001
o
n meth
o
ds t
o
o
btain and ensure adequate air
f
l
o
w
t
o
the
f
urna
c
e has been ex
c
erpted and, in s
o
me
c
ases,
paraphrased bel
o
w
fo
r re
f
eren
c
e purp
o
ses. C
o
nsult the
Standard
fo
r the Installati
o
n
of
Oil
-
Burning Equipment,
NFP
A
31
-
2001,
fo
r spe
c
ial
c
ases and
f
urther details.
1. Utility R
oo
m
(
example
of
a
co
n
f
ined spa
c
e
)
a. In buildings
of
co
nventi
o
nal
co
nstru
c
ti
o
n with
n
o
rmal air in
f
iltrati
o
n, tw
o
(
2
)
permanent
o
pen
-
ings
co
nne
c
ting t
o
a well
-
ventilated
c
rawl spa
c
e,
atti
c
,
o
r an
o
ther large, well
-
ventilated internal
area shall be pr
o
vided. Ea
c
h
o
pening shall have a
minimum
f
ree area
of
o
ne
(
1
)
square in
c
h per
1000 BTUH
of
t
o
tal input rate
(
sum
of
the indi
-
vidual applian
c
e input rates
)
of
all applian
c
es t
o
be installed in the utility r
oo
m. One
o
pening
sh
o
uld be l
oc
ated near,
o
r in, the
c
eiling
of
the
r
oo
m and the
o
ther sh
o
uld be l
oc
ated near,
o
r in,
the
f
l
oo
r.
b. In buildings
of
unusually tight
co
nstru
c
ti
o
n
(
e.g.
th
o
se having
co
ntinu
o
us water vap
o
r barriers
;
tightly
-f
itting,
o
r weather
-
stripped, d
oo
rs and
wind
o
ws
;
and gasketed,
c
aulked,
o
r sealed
o
uter
wall
j
o
ints and penetrati
o
ns
)
, wherein in
f
iltrati
o
n
and air ex
c
hange with the
o
utd
oo
rs is very lim
-
ited
(
0.35 air
c
hanges per h
o
ur,
o
r less
)
, pr
o
visi
o
n
must be made t
o
pr
o
vide su
ff
i
c
ient air
fo
r
co
m
-
busti
o
n. The
fo
ll
o
wing meth
o
d will usually be ad
-
equate t
o
ensure su
ff
i
c
ient air
f
l
o
w int
o
the spa
c
e.
Pr
o
vide tw
o
(
2
)
permanent
o
penings,
o
ne
(
1
)
l
oc
ated
within 12 in
c
hes
of
the
f
l
oo
r and
o
ne
(
1
)
within 12
in
c
hes
of
the
c
eiling,
o
r r
oof
,
of
the r
oo
m. These
o
pen
-
ings shall all
o
w
fo
r dire
c
t ex
c
hange
of
air between the
r
oo
m and
o
utd
oo
rs. I
f
required, du
c
ting between the
r
oo
m and the
o
utd
oo
rs shall be pr
o
vided.
-
F
o
r h
o
riz
o
ntally
-o
riented du
c
ts, ea
c
h
o
pening shall
have a minimum
f
ree area
of
o
ne
(
1
)
square in
c
h per
2000 BTUH
of
the t
o
tal input rate
(
sum
of
the indi
-
vidual applian
c
e input rates
)
of
all applian
c
es t
o
be in
-
stalled in the r
oo
m.
-
F
o
r verti
c
ally
-o
riented du
c
ts, the minimum
f
ree area
may be redu
c
ed t
o
o
ne
(
1
)
square in
c
h per 4000
BTUH
of
the t
o
tal input rate
(
sum
of
the individual
applian
c
e input rates
)
of
all applian
c
es t
o
be installed
in the r
oo
m.
-
The minimum dimensi
o
n
of
any air
o
pening shall n
o
t
be less than 3
-
in
c
hes.
-
W
hen an
o
pening in the
o
utside wall must be pr
o-
vided, it sh
o
uld be
f
urnished with pr
o
perly s
c
reened
metal sleeves.
2. Full Basement
(
example
of
an un
co
n
f
ined spa
c
e
)
a.
W
here a
f
urna
c
e is installed in a
f
ull basement,
in a building
of
co
nventi
o
nal
co
nstru
c
ti
o
n with
n
o
rmal air in
f
iltrati
o
n, in
f
iltrati
o
n is n
o
rmally ad
-
equate t
o
pr
o
vide air
fo
r
co
mbusti
o
n and ventila
-
ti
o
n.
b. In buildings
of
unusually tight
co
nstru
c
ti
o
n
(
su
c
h
as th
o
se where weather stripping and st
o
rm sash
wind
o
ws are used, and where basement wind
o
ws
are als
o
weather
-
stripped
)
,
o
ne
(
1
)
permanent
o
pening
co
nne
c
ting t
o
a well
-
ventilated atti
c
,
o
r
with the
o
utd
oo
rs shall be pr
o
vided, using a du
c
t,
i
f
ne
c
essary. This
o
pening shall have a minimum
f
ree area
of
o
ne
(
1
)
square in
c
h per 5000 BTUH
of
t
o
tal input rate
(
sum
of
the individual appli
-
an
c
e input rates
)
of
all applian
c
es t
o
be installed
in the basement.
W
hen an
o
pening in the
o
utside wall must be pr
o-
vided, it sh
o
uld be
f
urnished with pr
o
perly s
c
reened
metal sleeves.
