Graphite GR910-B, Instruction Manual

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‘trade-off’. In this instance, if you’re sure that the fuel
is seasoned and dry, then burning the stove at very
high temperature for a short period after a long slow
burn will usually burn off any sooty deposits. Glass
can be cleaned easily if it is undertaken regularly and
the deposits are not allowed to build up. A proprietary
stove glass spray or gel is strongly recommended.
MOISTURE IN THE FIRE CHAMBER
You may see moisture droplets on parts of the boiler
or experience damp ash when the stove is cold or
after the stove has been used.
• Causes: Atmospheric conditions
It is not unusual
for condensation to form on a cooling boiler or
pipework under certain atmospheric conditions.
Such condensation should not be confused with a
boiler leak. In the unlikely event of a boiler leak a
profuse amount of water, which is usually hard to
stem, will occur. This is significantly different from
condensation which can be easily dried out with a
sponge or tissue or by re-lighting the stove. After the
fire has gone out, open all the air controls and leave
the stove door slightly open, as this can sometimes
help. Please refer to page 26 as well as our boiler
Warranty terms and conditions on page 29 if you
suspect a leak.
CENTRAL HEATING SYSTEM NOT PROVIDING
ENOUGH HEAT OR HOT WATER
If you have ensured that the stove is functioning
properly ie that it has vibrant yellow flames and is
providing heat to the room, but still not delivering
sufficient heat through the central heating radiators or
hot water then it is more than likely to be a problem
with the system.
The simplest way to determine this is, if possible, to
check that the top water pipe from the stove is hot
and that the lower pipe is cooler. If this is the case
then this indicates that there is a
problem with the system and not the stove.
• Causes: Circulation pump or thermostatic
valve failure
A fault in one of the system’s key
components could restrict the system flow thus
limiting heat to the radiators and / or hot water
cylinder. For example, a thermostatic valve may have
been activated due to a potential temperature
anomaly or have stuck in the wrong position.
Identifying the precise problem is a job best left to
the original installer or heating engineer.
•
Causes: Unbalanced central heating system
With all multi fuel boiler stoves, given their particular
heat cycle and the natural gravity fed flow, it is
extremely important that the radiators are balanced to
ensure an efficient distribution of heat as well as an
even heat balance from one radiator to the next.
If you have linked your new boiler stove to an existing
or old system then it is likely that the system needs
re-balancing to work in conjunction with your stove.
See page 23
•
Causes: ‘Sludge’ in radiators
If you have linked your new boiler stove to an old
central heating system and you have bled (and / or
balanced) your radiators and there is still a lack of heat
then the chances are that your radiators will be con-
taminated with sludge. This is a thick black sediment
which inhibits the flow of hot water. Your system will
need flushing with the appropriate chemical agent.
This can be a time-consuming and messy job and is
best left to a plumber or heating engineer.