Stovax PM219 - Manual (Page 8)

8
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Smoke and small flames
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Short life span for grate
6.3 Flue Draught
The chimney has two main functions:
1) To safely remove the smoke, gases and fumes from the
house.
2) To provide a sufficient amount of draught (suction) in the
appliance ensuring the fire keeps burning.
Draught is caused by the rising hot air in the chimney when
the appliance is lit.
Symptoms of poor performance related to flue draught
include:
—
Excessive fuel consumption (high flue draught)
—
Poor burning control, overheating (high flue draught)
—
Wind noise from air controls (high flue draught)
—
Difficulty getting a fire going and keeping it burning well
(low flue draught)
—
Low heat output (low flue draught)
—
Smoke entering room when doors opened (low flue
draught)
The construction, position, size and height of the chimney
all affect the performance of the flue draught.
Other factors effecting the flue draught include:
—
Trees or other buildings nearby causing turbulence
—
High and gusty winds
—
Outside temperature
—
Outside weather conditions
—
Incorrect additional ventilation to building
—
Blocked flue / chimney
For advice on the correction of persistent flue problems
consult a qualified solid fuel heating engineer before
continuing to use the appliance.
6.54 Weather conditions
The weather conditions outside the building can effect the
burning performance of the appliance. These could include:
Weather Conditions Problem Effect
Windy days Buildings/Obstacles
cause turbulent air
around chimney.
Smoky Appliance
Calm days Oversized Chimney. Smoky Appliance
Damp / Rainy days Flue temperature
not hot enough.
Rain water inside
chimney.
Lighting and
burning problems
To reduce these problems:
• Use good quality kindling wood to start the fire
• Burn initially at a high temperature for a short period
• Fit a rain cowl to the chimney
Your installer should advise you on possible solutions.
If the appliance emits smoke into the room continuously:
• Allow the appliance to go out
• Ventilate the room to clear the fumes
Do not re-light the appliance until the problem is solved.
7. ASH REMOVAL
Do not allow ash to build up in the appliance as it will
not burn properly and may cause damage.
7.1 Wood:
Regular cleaning:
• De-ash at least once a week by removing ash from the log
box whilst located in the appliance
• Leave a thin layer of ash to start the new fire on
Thorough cleaning:
• Remove the Log bar/front by lifting vertically
Where a Steel frame is fitted the removable bottom frame
plate must be removed prior to lifting out the log box,
Installation Instructions 3A.
• Lift the Log box above the bottom lip of the frame
opening
• Clean the log box and any ash on the appliance base
plate
PR8073
Log Bar
Log Box
7.2 Multi-fuel:
De-ash the appliance before filling with new fuel. Do not
allow ash to build up on the underside of the grate as this
can cause premature failure.
• Riddle, with a poker, See Diagram 15
USER INSTRUCTIONS