VS0952_E
12/30/2009
11
E
XHAUST
S
YSTEM
(C
ONTINUED
)
DETERMINE
VENTING
SIZE
AND
DISTANCE:
It
is
recommended
that
the
vent
system
be
installed
with
a
minimum
of
three
feet
(3’)
of
vertical
rise
above
the
appliance
exhaust
port.
Equivalent
Vent
Length
(EVL)
is
the
method
of
determining
vent
sizes
and
lengths,
that
takes
into
account
the
effect
of
different
component
parts
on
air
flow.
Pellet Venting
Component
# of Elbows
OR feet of Pipe
Multiply by
Equivalent
Feet
Component
Equivalent
90 Degree or Tee
X
5
45 Degree
X
3
Horizontal Pipe
X
1
Vertical Pipe
X
.5
Total
Equivalent
Step
1
Complete
table
above.
Step
2
Ensure
the
Total
Equivalent
is
or
is
less
than
30.
Step
3
Use
the
Sizing
Chart
to
determine
the
proper
venting
size
according
to
the
Total
Equivalent
and
the
Altitude
above
sea
level.
NOTE:
In
some
cases
it
may
be
necessary
to
contact
Hearthland
Customer
Service
personnel
to
deter
‐
mine
acceptable
venting
configurations
and
altitude
adjustments.
Call:
1
‐
888
‐
883
‐
2260.
Diagram
for
visual
reference.
0 1 2 3 4 5 6 7 8 9 10
10
20
30
Altitude in Thousa nds of Feet
E
q
u
iv
a
le
n
t
P
ip
e
L
e
n
g
th
i
n
F
e
e
t
3 or 4 Inc h Dia me ter Pip e
4 Inc h Dia me ter Only
Summary of Contents for Hiawatha
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Page 41: ...VS0952_E 12 30 2009 41 REPLACEMENT PARTS LIST...
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