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General information about heat
accumulating fireplaces
Heat accumulating fireplaces differ from other fireplaces
in that they are intended to provide a moderate heat
for prolonged periods with a limited time of burning.
Conventional fireplaces give off strong heat during the
burning period but with a very limited cool-down period.
The heat accumulating fireplaces from Nordpeis have
a long duct system where the heat developed in the
combustion chamber passes through the duct system
before it exits through the chimney. The heat from the
gases is absorbed by the material surrounding the
smoke ducts, and by the time the smoke exits through
the chimney. The efficiency of a well-constructed
heat accumulating fireplace is thus far better than
the efficiency of a conventional fireplace. A heat
accumulating fireplace can keep an even temperature
throughout the day with only one heating cycle.
Double- action damper:
The stove is fitted with a double action damper, and
controls two functions: bypass and chimney damper.
When the damper rod is pulled all the way out, the flue
gasses will bypass the canal system and exit through
the chimney. This function is used when lighting the fire.
When the stove and the chimney has reached operating
temperature after 10 – 30 minutes the damper rod
should be pushed half way in until a "click" is heard. In
this position the bypass damper is closed and the flue
gasses are forced through the stove's canal system
which is absorbing the heat of the flue gasses before it
is released to the chimney.
The bypass damper should also be opened before
opening the door for re-fuelling wood, and then closed
again.
WARNING: Using the stove over prolonged periods
with open bypass damper may expose the chimney
to higher temperatures that it is design for.
By pushing the damper rod all the way in, both bypass-
and the chimney damper will be closed. This closes
off the canal system from the chimney, preventing the
heat accumulated in the stove to be lost through the
chimney. This function should never be used before the
fire is out and only a bit of embers are left in the stove.
WARNING: Closing the chimney damper too early
can result in flue gasses entering the room and
cause carbon monoxide poisoning.
Air Vent
When burning in a heat accumulating fireplaces the
air vent is traditionally kept open to a maximum. This
ensures optimal combustion and minimises carbon
deposits in the smoke duct system. In addition it makes
it easier to keep the glass clean during intensive
burning. However, should one wish for a longer burn
period and slower flames, the air vent is adjusted
and reduced. Salzburg is equipped with secondary
combustion technology, which can normally only
be found on modern fireplaces. This ensures clean
combustion and high efficiency, even at lower loads.
Cleaning the Smoke Duct System
When the fireplace is used every day throughout the
heating season, we recommend that the smoke duct
system is swept once a year. This is to maintain the
draught and efficiency. Soot isolate the ducts and
thus lower the efficiency. One can also notice that the
draught is reduced and that the flames are difficult
to control with the air vent function. Remember that
the fireplace must always be cold before it is swept /
inspected.The inspection shall be performed by the
Professional servicemen.
Ash and Ash-pan
The ash-pan consists of an inner part which is used for
the regular emptying of ashes. The duct system can
be reached when the outer part of the ash-pan also is
removed.
For the simplest possible way to sweep the ducts one
should use a spring that is as flexible as possible (steel,
Ø4-5mm, about 200 cm long) with accompanying brush
(Ø50 - 80mm). This is then led down through the open-
ing where the ash-pan was up into the duct system
on each side. The entire depth of the duct should be
swept. Soot that falls down and ends up in the bottom
under the ash-tray can be removed with an ash vacuum
cleaner.
By rear or lateral connection the flue can be swept by
removing the smoke baffle and then opening the bypass
damper.
The ashes must be emptied periodically. Please note
that the ash may contain hot embers even several
days after the fire has ceased. Use a container of non-
combustible material to remove the ashes.
Weight
The home owner must ensure that the floor can
withstand the load of the total weight of the product.
Firewall
Freestanding fireplaces can be installed without a
firewall. Observe all safety distances to combustible
materials.
Connection to Chimney
Follow specifications from the chimney manufacturer
for connection to the chimney. Dry stack the fireplace
for accurate height and positioning of the flue/chimney
connection.
The product is not compatible with top connected
concrete chimney.
Maximum weight of steel chimney (top connection)
is 300kg.
By top connection to steel chimney, we refer to the
respective manufacturer's installation instructions.
Requirements for Floor Plate by Combustible Floor
Follow the requirements for floor plate (stone, steel, etc.)
that apply in the country that the product is installed in.
GB
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