Chapter
2
Venting
Requirements
America’s
Favorite
Stoves
Since
1980
Page
7
V
ENTING
Proper
venting
of
your
stove
is
very
important
for
good
clean
burns
with
high
efficiency.
In
addition,
venting
can
have
a
direct
impact
upon
the
safety
of
your
stove.
The
Mahogany
Wood
Stove
is
approved
for
use
with
double
wall
connector
and
the
same
manufacturers’
chimney
system
as
follows:
Simspon
Dura
‐
Vent
Model
DVL
Selkirk
Metalbestos
DS
Security
Chimneys
Model
DL
1.
Chimney
must
comply
with
the
requirements
for
Type
HT
chimneys
in
the
standard
for
Chimneys’
Factory
‐
Built,
Residential
Type
and
Building
Heating
Appliance,
UL
103,
or
a
code
‐
approved
masonry
chimney
with
flue
liner.
2.
Install
the
chimney
in
accordance
with
all
of
the
instructions
provided
by
the
chimney
manufacturer.
NOTE:
Your
chimney
must
comply
with
local
building
and
fire
codes.
Check
with
your
local
officials
for
additional
requirements.
3.
Install
the
first
piece
of
pipe,
crimped
end
down,
into
the
flue
collar
on
the
stove
ensuring
an
airtight
connection.
Secure
with
screws
through
side
of
flue
collar.
Continue
stacking
pipe
in
this
manner
until
within
reach
of
chimney.
Use
only
an
air
tight
slip
joint
to
make
the
connection
to
the
chimney.
All
horizontal
runs
of
pipe
should
be
as
short
as
possible
and
are
required
by
NFPA
No.
211
to
have
an
upward
pitch
or
rise
in
the
same
direction
the
smoke
travels
of
no
less
than
¼”
to
the
linear
foot.
The
connector
pipe
must
meet
minimum
clearances
in
any
direction
to
walls
or
other
combustible
materials.
It
must
attach
to
a
listed
metal
chimney
at
least
6”
in
diameter
with
a
minimum
thickness
of
24
gauge,
or
to
a
masonry
chimney
with
a
flue
passage
of
at
least
48
square
inches.
It
is
required
that
a
chimney
connector
pipe
not
extend
further
than
the
inner
wall
of
the
flue
when
it
is
connected
to
a
masonry
chimney,
and
that
it
either
be
cemented
to
the
masonry
or
be
installed
without
cement
in
a
thimble
connected
to
the
masonry
wall.
When
the
connector
is
inserted
in
a
thimble,
the
joint
must
be
tight
enough
so
that
it
will
not
be
dislodged
in
normal
use.
Install
the
connector
at
no
less
than
the
minimum
clearances
from
the
ceiling
when
using
a
90
‐
degree
elbow
to
pass
through
combustible
constructions.
Chimney
connector
pipes
should
never
pass
through
a
floor,
ceiling,
firewall,
and
partition
or
combustion
construction
of
any
type
unless
certain
precautions
are
taken.
The
best
method
is
to
use
a
listed
thimble
and
a
listed
insulated
chimney
in
accordance
with
the
manufacturer’s
directions.
NFPA
No.
211
and
CAN/CSA
‐
B365
also
gives
some
approved
method
for
passing
a
flue
pipe
through
combustible
constructions.
Natural Draft
The
chimney
serves
a
dual
purpose
of
drawing
combustion
air
into
the
stove
and
exhausting
combustion
by
‐
products.
Draft
is
the
force
which
moves
exhaust
gases
up
the
chimney
(hot
air
rises).
As
the
exhaust
rises
up
the
chimney,
combustion
air
is
drawn
into
the
stove
to
replace
it.
Your
stove
relies
on
natural
draft
for
its
only
source
of
combustion
air.
Poor
draft
can
cause
poor
combustion
and
smoke.
Too
much
draft
can
cause
excessive
burn
rates
and
high
temperature
in
the
stove.
Some
of
the
things
that
can
affect
natural
drafting
are
size
and
length
of
the
chimney,
nearby
obstructions,
and
geographical
location.
Your
Breckwell
dealer
will
be
able
to
help
you
match
your
stove
to
a
proper
chimney
system.
Negative Pressure
This
stove
is
not
to
be
operated
in
a
negative
pressure
area.
Negative
pressure
can
be
caused
by
large
exhaust
fans
in
airtight
homes,
or
by
air
return
for
a
forced
air
heating
systems
in
the
same
room
as
the
stove.
This
can
lead
to
back
drafting
of
the
stove
pulling
combustion
exhaust
into
the
room.
An
outside
air
source
connected
to
the
stove
will
not
eliminate
the
source
of
negative
pressure.
To
eliminate
negative
pressure
problems,
be
sure
your
home
has
an
adequate
make
‐
up
air
supply.
