14
Regular, smaller loads are better because they keep
the fire chamber at a higher temperature, without
over-firing it. The higher operating temperature helps
prevent nuisance smoke and sooty deposits.
Never overfill the fire chamber and also avoid
over-sized pieces of wood which will ‘slow’ the fire
down at the start but then could lead to over-firing.
Before refuelling open the Primary and Secondary
Air supply, as well as the Thermostat Control, so that
there is a good strong fire and the embers are glowing
red to help the new fuel to start burning quickly. This
will also ensure that there is no build-up of harmful
gas which could be released into the room when the
fire chamber door is opened.
Rake the embers and spread them out to make an
even bed. You may need to add some kindling to
re-establish the fire. Add the new wood as before
ensuring that the logs are not tightly packed.
Newly refuelled wood always requires some
additional air so make sure the Secondary Air and the
Thermostat Control are back in the fully open position
after refuelling. Do not adjust the Secondary Air or
Thermostat Control until the fire is burning well and
you can see bright yellow vigorous flames.
Once the fire is established, usually after about five
minutes, close the Primary Air and adjust the flame
pattern again to your requirements with the
Secondary Air and Thermostat Controls.
If the new wood fuel is slow to catch alight, even with
the Primary, Secondary and Thermostat Air fully open
then try opening the stove door slightly to provide
additional combustion air and until strong vibrant
flames are established. This should only take a matter
of a minute or so and on no account should the stove
be left unattended while this is happening as the
stove could very easily over-fire.
5 Controlling the boiler temperature
This will be very much a matter of trial and error
using the guidelines above. When the stove has been
running at operating temperature for a number of
hours the Thermostat Control, can be used for
simultaneous control of both the water temperature
and the burn rate of wood fuel load (and therefore
the heat into the room). To do this, ensure the Primary
Air is fully closed, adjust the Secondary Air so that
some combustion air is still provided to ensure the
Airwash will continue to work. Then simply control
the flame pattern and burn rate with the Thermostat
Control. if the glass begins to soot up provide more
Secondary Air.
Some simple wood burning tips
1
Boiler stoves operate at a much lower temperature
than non-boiler stoves and consequently the potential
to create soot or creosote build-up in the flue system
is also much greater, especially when operating the
stove in ‘slumber’ mode during overnight burning.
We therefore recommend burning your Precision
Boiler on high output for at least 30 minutes each day
to help burn off any potential soot or creosote build-
up – but be careful not to over-fire the stove.
2
Small regular loads when refuelling will produce a
more efficient and cleaner burning performance.
3
Avoid burning large amounts of wood with the
Secondary Air supply turned down as this will reduce
the effectiveness of the Airwash system, as well as
produce excessive smoke and create potential
creosote build-up.
4
Never overload the stove – it will be smoky and
inefficient as well as very slow to establish a good
burn and could eventually possibly over-fire when it
does get established.
5
Bright vibrant flames and a clean fire chamber
indicates that your stove is operating well.
BURNING MINERAL FUELS
These instructions are an initial guideline to help you
get started. As you begin to gain experience of your
stove and choice of fuel(s), as well as your flue system,
you will be able to adjust these procedures and
control settings to your personal preference.
Mineral fuels require much more combustion air
from below the fuel load than wood. This means
that Primary Air is generally needed throughout the
initial burning phases. The Primary Air control should
always be in the fully open position at the start of the
lighting phase (you may also need to leave the stove
door open slightly). Burning mineral fuels also requires
the grate to be riddled more often to allow the free
flow of combustion air from the Primary Air source
– therefore, always ensure that the firegrate is clear.
A typical recommended mineral fuel load for the
HF910-B is approximately 3kg (6lb 10oz) with a
maximum fuel load of approximately 3.8kg (8lb 5oz).
1 The Lighting Phase
For best results:
Primary Air (bottom control) – fully open
Secondary Air (top control) – fully open
Thermostat Control – fully open (8)
Door – slightly ajar (optional)
Light your fire in the traditional way with a small
wood kindling fire and small amounts of your choice
of mineral fuel placed lightly on top making sure to
leave plenty of air space. On very cold days increase
the amount of kindling used to ensure a good up-
draught in your flue system is quickly established.
2 The First Refuel Phase
For best results: After 10 -15 minutes...
Primary Air (bottom control) – fully open
Secondary Air (top control) – adjust to suit
Thermostat Control – fully open (8)
Door – closed
Содержание Horse Flame HF910-B
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