Revised: 13/05/2021 6 of 13 Printed: 14/10/2021
Operating Information
Fuel
Ignition: A supply of firelighters or newspapers.
Kindling: 10 mm – 20 mm diameter light, split, pieces of dry wood.
Start up wood: 30 mm – 75 mm diameter medium size, split pieces of dry wood.
“BURN ONLY HARDWOOD”
Starting a fire
Fully open the air inlet by sliding the control arm to fully extended position and then open the firebox
door. Lift the door handle upward and open the door slowly.
To build a fire, place firelighters or crumpled ‘balls’ of newspaper in the firebox. Build a cone or tepee
of kindling over the bed of newspaper and ignite. When properly alight, close and latch the door.
When the kindling is well alight add some start up wood, which will prepare the fire to take larger
sized firewood. Close the door securely.
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When the start up wood is well alight add a load of firewood.
Your Coonara heater will burn any diameter logs which fit in the firebox.
Large logs will take longer to ignite but will burn longer.
Once these logs are alight, adjust the air control to the desired level.
As well as keeping recommended firewood sizes in mind, the way you load the fuel will affect the
operating characteristics of your Coonara heater. Always ensure adequate air is provided for
combustion and, to reduce creosote, a smaller intense fire is preferable to a large smouldering one.
If a large log is placed across the width of the firebox, more often than not the wood will smoulder
rather than burn effectively. This is because the primary burn air enters the Coonara firebox above
the door opening and travels down the door glass effectively ‘washing the glass’ (i.e. minimising
carbon, soot and creosote deposits), before travelling through the fuel load.
Should the primary burn air intake be restricted in travelling through the fuel load, for example by a
large piece of wood lying across the firebox, it follows that the correct combustion process will not
take place.
It is better to place 2-3 smaller diameter pieces of wood front to back with a minimum spacing of
20mm as a load and a larger piece or pieces across these.
Reloading
The firebox should be loaded to a minimum of 2/3 full, preferably when the fuel has burnt down to a
bed of coals. Attempting to reload part way through a burn period risks smoke, coals, or a log rolling
from the heater.
Before reloading, it is important to position the air inlet control to high. Open the door carefully and
slowly. Rake over the coals and load the fuel as recommended. After reloading, close the door
securely and leave the air inlet fully open on high until the fuel load is well alight. Then the air inlet
control can be adjusted to your desired heat output.
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