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EXPEDITION II INSERT
F. Burning Process
In recent years there has been an increasing concern
about air quality. Much of the blame for poor air quality
has been placed on the burning of wood for home heating.
In order to improve the situation, we at Quadra-Fire
have developed cleaner-burning wood appliances that
surpass the requirements for emissions established by
our governing agencies. These wood appliances must be
properly operated in order to ensure that they perform the
way they are designed to perform.
NOTICE: Improper operation can turn any
wood appliance into a smoldering
environmental hazard.
1. Kindling or First Stage
It helps to know a little about the actual process of burning
in order to understand what goes on inside a appliance.
The first stage of burning is called the kindling stage. In this
stage, the wood is heated to a temperature high enough
to evaporate the moisture which is present in all wood.
The wood will reach the boiling point of water (212°F)
and will not get any hotter until the water is evaporated.
This process takes heat from the coals and tends to cool
the appliance.
Fire requires three things to burn - fuel, air and heat. So, if
heat is robbed from the appliance during the drying stage,
the new load of wood has reduced the chances for a
good clean burn. For this reason, it is always best to burn
dry, seasoned firewood. The heat generated from the fire
should be warming your home and establishing the flue
draft, not evaporating the moisture out of wet, unseasoned
wood, resulting in wasted heat.
2. Second Stage
The next stage of burning, the secondary stage, is the
period when the wood gives off flammable gases which
burn above the fuel with bright flames. During this stage of
burning it is very important that the flames be maintained
and not allowed to go out. This will ensure the cleanest
possible fire.
3. Final Stage
The final stage of burning is the charcoal stage. This
occurs when the flammable gases have been mostly
burned and only charcoal remains. This is a naturally clean
portion of the burn. The coals burn with hot blue flames.
It is very important to reload your appliance while enough
lively hot coals remain in order to provide the amount of
heat needed to dry and rekindle the next load of wood. It
is best to activate the ACC before reloading (Figure 12.1).
This livens up the coal bed and reduces excessive
emissions (opacity/smoke). Open door slowly so that ash
or smoke does not exit appliance through opening. You
should also break up any large chunks and distribute the
coals so that the new wood is laid on hot coals.
12
Air quality is important to all of us, and if we choose to
use wood to heat our homes we should do so responsibly.
To do this we need to learn to burn our appliances in the
cleanest way possible. Doing this will allow us to continue
using our wood appliances for many years to come.
G. Automatic Combustion Control (ACC)
When using the Automatic Combustion Control (ACC)
system, you do not have to continually monitor the fire.
Once you set the ACC system it will control the fire for you.
Follow the instructions below to learn how to operate your
stove with ease.
To activate:
Push back until it stops and then pull forward until it stops
Figure 12.1
7095-803C
ACC Start-up Air
Control
August 23, 2019
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