•
Multi Fuels
(Other than wood or peat).
Only burn
Authorised Smokeless Solid Fuels in a Smoke Control
Area.
Use solid fuels which are recommended and
approved for use in stoves.
If you cannot burn wood then we recommend
burning an authorised smokeless alternative, such as
smokeless coal ovals, as this is better for the stove
and flue system as well as the environment. There are
many different brands of high quality smokeless coal
ovals available in the UK and your local fuel merchant,
preferably a member of the Approved Coal Merchants
Scheme, will be able to advise you on those suitable
for multi fuel stoves.
You can also find out more about the various fuel
types by visiting
www.hetas.co.uk
and
www.solidfuel.
co.uk
.
PROHIBITED FUELS
Never use your stove like an incinerator. Burning
prohibited ‘fuels’ in a Smoke Control Area is illegal.
Burning the following materials could also damage
your stove and flue system, rendering the product
warranties on the stove and flue system components
void.
• Petroleum Coke
Never burn petroleum coke as this
burns at a very high temperature and its continued
use will almost certainly cause irreparable damage to
components such as the grate, baffle plate and
fire fence.
• Bituminous House Coal
is not recommended
because it produces excessive soot deposits, which is
not good for the environment, and thus considerably
increases the need for frequent cleaning of the stove
and flue system.
• Household Rubbish
Printed matter (excluding very
small amounts of newspaper for starting the fire),
plastic, rubber, lacquered or impregnated wood,
plywood, chipboard and household rubbish, such as
milk cartons, should also be avoided. During
combustion some of these materials may develop
substances which could be hazardous to your health
and be harmful to the environment.
• Flammable Liquids
Never use methylated spirits,
petrol or other highly inflammable liquids for
lighting the fire as these could cause an explosion
in the confined spaces of the fire chamber.
UNDERSTANDING HOW
DIFFERENT FUELS BURN
Wood and solid or mineral fuels (multi fuels) burn in
different ways and you will need to understand these
differences if you are a newcomer to wood burners
and multi fuel stoves.
Putting it simply, mineral fuels, such as coal or
smokeless ‘ovals’, need a flow of combustion air
11
through the bottom grate which is known as Primary
Air, whereas wood fuel works much better when its
combustion air is taken from above the grate. This
source of air is known as Secondary Air. Wood always
burns best on a bed of its own embers and the ashes
shouldn’t need to be riddled. Mineral fuels differ
because they need combustion air from below the
grate therefore it needs to be riddled, by using the
external riddler to keep the air passage clear.
See the section below to help you understand how
to control the different types of combustion air that
wood and mineral fuels need.
Your new stove can burn very well, or very poorly,
depending on how you light the fire, how you refuel
the fire, and, of course, the type and quality of the
fuel that you are burning. A log moisture meter is a
cost-effective investment if you want to maximise the
efficiency of your stove and wood fuel.
Wear protective gloves when loading a burning stove
and place the fuel precisely where you want it in the
fire chamber by using heat-resistant tongs. Always
open the stove door gently to avoid unnecessary air
turbulence which could cause fly ash or small lighted
embers to be drawn from the fire chamber and
beyond the protective hearth.
The stove is
not
designed to be operated with the
door left open continuously – this will reduce its
operating efficiency and it will consume more fuel
very quickly and produce less heat.
CONTROLLING THE COMBUSTION AIR
Your Hi-Flame Inset Convector has two simple air
control sliders, use the tool provided to move them:
Primary Air Control
This is the slider control in the
centre at the base of the stove (right is open). Primary
Air is required when burning mineral fuels (and to
maximise the supply of air during the initial
combustion of wood).
2 Secondary Air Control
This is the slider control in
the centre at the top of the stove – slide right to open
the air supply. Secondary Air is needed when burning
wood and is not needed when burning mineral fuels
(unless it is to maximise the air supply to aid the initial
combustion).
