5
Figure 2 Clearance to Combustibles (Standard indoor reflectors).
The minimum clearances to combustible materials are given in the tables below. These
minimum distances MUST be adhered to at all times. Adequate clearance MUST be provided
around air openings into the combustion chamber and there MUST be suitable clearance for
accessibility and for combustion / ventilating air supplies.
C2
C1
A
B1
B
B
A
E
D2
0° to 55°
D1
Ens
ure that there i
s adequate
provisi
on in the bui
lding for
combustion and ventilat
ion air
supply. Installation must meet
mini
mum requirements and
appl
ici
able codes.
B
u
rner end.
Outlet end.
A
ngled view.
En
d vi
e
w
.
C3
Below
heate
r
Sid
e
vente
d
Side
unven
ted
En
d
unv
ente
d
Abov
e ou
tlet
un
ve
nte
d
Ab
ove
Re
flector
Abo
ve
Bu
rn
er
Service
dista
nc
e
Re
tu
rn
e
nd
on
U tu
be
h
eater
E
ns
ur
e th
at
th
e
re
is adequate
prov
ision in the bu
ild
in
g f
or
combus
tion and vent
ila
tio
n a
ir
suppl
y. Installation
mu
st me
et
minimum requirement
s and
appliciable codes.
WAR
N
IN
G!
applicable