Harman Stove Company TL2.0 - Manual (Page 24)

24
TL2.0 Woodburning Stove
Dry Seasoned Wood Only! Save These Instructions 3-90-08560
D. the Combustion process
Combustion in the firebox is precisely controlled and
is best explained in two parts.
During a wood fire, combustion air enters at the bottom
front of the stove where it travels upward through
channels at either side of the front door. From the
manifold located above the front door, it is directed into
the firebox as a sheet of air flowing between the glass
and the wood. This concept helps to keep the glass
clean, while providing the oxygen needed to sustain
burning. This is what is known as "Primary Combustion".
Additional air enters at the bottom rear of the stove
body. Some of this air enters through holes in the
rear bricks where it is used to revitalize the fire at the
rear of the firebox. The remainder is delivered into
the "Firedome Plus" combustion package where the
"Secondary Combustion", or re-burning of the smoke,
occurs.
During combustion, the burning of wood proceeds
through several stages. The initial or evaporation
stage is where the moisture in the wood is driven off
in the form of steam. A second stage is where the
volatile gases contained in the wood are released and
burned. This represents most of the wood's heating
capacity. The final stage is the charcoal stage where
the charcoal burns the remaining heat content in the
wood fuel. Ash remains after the burning is complete.
Within the primary firebox two or more of these stages
of combustion are occurring at once.
Always be sure to provide adequate ventillation to
the room where the apliance is located, to prevent
air starvation. In tight construction, consider installing
outside air to the appliance.
SECONDARY AIR FLOW
SECONDARY AIR ENTERING
EXHAUST STREAM
SECONDARY AIR
THRU BRICK
EXHAUST STREAM
PRIMARY AIR FLOW
3. grates
The unique grate system consists of one flat bottom
grate, and two front andirons. The bottom grate has
slots which allow the ash to fall into the ash pan by
passing a poker back and forth across the grate. The
andirons keep the fuel from coming into direct contact
with the glass, and keep hot coals and embers from
spilling out while reloading. Never build a fire directly
against the glass.
The grates and andirons must remain in place
at all times. do not tamper with or change the
configuration of this grate system.
C. Burning as a fireplace
This appliance has been tested and approved for
burning as an open fireplace. To do so, a spark screen
(Harman part# 3-40-06960; Cozy Screen) must be
installed over the front door opening. The by-pass
damper must be kept in the open position.
The Cozy Screen can be used from the start of a fire
or can be used with
an existing one. When
starting a fire with the
Cozy Screen, smoke
spillage may occur until
it develops a draft strong
enough to pull all smoke
back into the flue.
D O N O T L E AV E
T H E A P P L I A N C E
UNATTENDED WITH
THE DOOR OPEN!
Load only small amounts of wood at a time.