Reduced Burning; Operational Problems - Heta SCAN-LINE 805 AQUA Operating And Installation Instructions

Reduced burning

The stove is well suited to intermittent use. If
you wish to operate the stove with reduced out-
put, simply insert smaller volumes of wood at
each firing, and apply a lower airflow. However,
remember that the secondary combustion air
supply must never be shut off completely du-
ring firing. It is important to keep a good bed of
embers. Gentle heat is released when the fire
settles - i.e. when the wood no longer generates
flames and has been converted to glowing
Optimal firing
To achieve optimal firing and the highest possi-
ble effect, it is important to make sure that the air
supply is used correctly. As a general rule, the
secondary air is to be used to control the fire to
ignite the flue gases. This produces a high effect
and keeps the glass panel completely clear of
soot as the secondary air "washes" down over
it. Please note that the stove will, naturally, pro-
duce soot if both the start-up mechanism* and
secondary air intakes are closed completely. This
will prevent oxygen from being drawn into the
Stove data table in accordance with EN 13240 testing
Ovn type Nominal fluegas
Scan-Line
temperature, at 20°C
room temperature
C°
805 Aqua 182
Ovn type Maximal operation
Scan-Line pressure
bar
805 Aqua 4
The nominal output is the output to which the stove has been tested.
The test was carried out with the secondary air 70% open.

Operational problems

The chimney must be swept at least once a year,
we recommend the use of a NACS (national as-
sociation of chimney sweeps) registered chim-
ney sweep. In the event of smoke or malodorous
fumes being produced, you must first check to
see whether the chimney is blocked. The chim-
ney must, of course, always provide the minimum
draught necessary to ensure that it is possible
to regulate the fire. Please note, however, that
chimney draft is dependent on the weather con-
ditions. In high winds, the draft can become so
powerful that it may be necessary to fit a damper
6
Smoke Fuel Draught
min
stub volume
mbar
mm kg
ø150 1,9 0,12
Water contence Efficiency Distance to flammable materials in mm
of the boiler %
behind the stove
litres
14 87
stove, and the viewing window and other parts
will become covered with soot. If this situation is
combined with firing with wet wood, the build-up
of soot can become so thick and sticky that the
sealing rope can, for example, become detached
when the door is opened the next day.
Risk of explosion
After you add new fuel, it is very
important that you do not leave
the stove unattended until the
wood is burning constantly.
This will normally occur within 30 to 60 seconds.
A risk of explosion can possibly arise if too much
wood is placed in the stove. This may result in
the production of large volumes of gas, and this
gas can explode if the intake of primary and se-
condary air is insufficient.
It is an advantage always to leave some ash
lying in the bottom of the combstion chamber.
Take care when emptying the ash pan, as
cinders can continue to burn in the ash for
long periods of time.
Nominal Output to
water
output tested
kW
kW
8,7 5,6
at the stoves
22 175
in the flue gas pipe to regulate the draft. When
cleaning the chimney, soot and other deposits
may come to fall on the smoke turning plate. In
cases where the wood burns too quickly, this
may be due to excessive chimney draught. You
should also check to make sure that the door
seal is intact and correctly fitting.
If the stove it generating too little heat, this may
be because you are firing with wet wood. In this
case, much of the heating energy is used to dry
the wood, resulting in poor heating economics
and an increased risk of soot deposits in the
chimney.
Output to the Output to Output to the
room water room
kW % %
3,1 64
Distance to furnitures Stove
from the stove weight
mm kg
750 212-289
36