How To Light And Sustain A Fire - F2 Fires iCast Ion Installation And Operating Manual

How to light and sustain a fire

First stage
The fire is usually smokiest just after lighting due to the coldness of the wood and appliance, which can take
heat away from the flames. During this stage, ensure that the primary air inlet is fully open to increase the flame
temperature and initial heat. Heat will escape straight into the flue system, however, this is a necessary part of
starting an efficient fire. The inbuilt tertiary air supply inside the appliance is non-adjustable. Using the primary
and secondary inlets allows you to increase air above and beyond what the inbuilt tertiary air system supplies.
Initial heat
The additional heat at the first stage will prime the chimney, producing a strong draught. It will also help to keep
the chimney or flue clean by loosening anything deposited during a previous fire. The hot initial burn also drives
moisture from the firewood and gives an ignition source for the smoke that is released from the wood.
Adding fuel
When adding fuel, only make small, gradual changes. Do not add too much fuel at once. Adding fuel gradually
will help to maintain a steady optimum temperature and burning rate so that the appliance burns efficiently
and cleanly. Adding too much fuel will also dramatically reduce the temperature inside the firebox. After adding
large pieces of fuel, it is recommended that you increase the air opening slightly so that the new fuel begins to
burn and the appliance returns to optimum operational temperature.
This also applies to the air control. Adjusting it gradually will help maintain a steady combustion rate. In most
instances, you will arrive at the best combustion air settings yourself, as the height and diameter of the chimney,
as well as the quality of the fuel used are decisive factors in determining your appliance's efficiency.
Small hot fires are more efficient than large slumbering ones. Most of the energy in burning wood is released
as a bright flame. The turbulence in the flames creates good mixing between the combustion air and the gases
that are released from the wood as it heats up. The heat of the fire ignites and burns these gases. In contrast, the
dense smoke from a slow, smoldering fire is potential heat energy that can escape up the chimney and either
cling to the chimney flue or pollute the atmosphere with unburnt carbons.
To gain the most heat from each burn, the fuel should be flaming throughout the burn cycle until it is reduced
to ash. Should any regular slow-burning occur, it is always good practice to burn a hot fire at regular intervals to
keep the chimney clean and dry. When refueling, always place the fuel towards the back of the appliance where
it will burn at a higher temperature.
The removal of ashes
The ashes should only be removed when the fire is out and has been left to cool completely. The log retaining bar
can be removed for easier access by lifting it up. Wood burns well on a thin layer of ash and leaving this behind
when cleaning will provide protection for the base and insulating bricks, thus prolonging their life.
NEVER attempt to remove the ashes when the stove is hot or warm. DO NOT attempt
to remove ashes directly after use. Allow the stove and ashes to cool down fully
before attempting any maintenance. Ashes can remain hot even when they appear
to be no longer lit. Please ensure you use the correct tools to dispose of them safely,
and if you are unsure, allow them to cool further before attempting to remove them.
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