General Information About Heat Accumulating Fireplaces - Nordpeis Salzburg M Manuel D'installation

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 temperature is reduced to little over
100 °C (212 ºF). 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 two heating
cycles.
Bypass Damper
When the bypass damper is open the smoke gasses
exit directly through the chimney without first travelling
through the duct system. This gives far better draught
which can be beneficial for lighting a fire when the
fireplace and/or the chimney are cold. The bypass
damper should only be open when needed, for short
periods (10-15 minutes), when lighting a fire, and
possibly when inserting new firewood in order to
prevent the release of smoke or ash. Prolonged heating
with open bypass damper can lead to exceeding the
maximum allowable chimney temperature.
Flue Damper
The flue damper seals off the fireplace from the
chimney. This is to ensure that as much as possible of
the stored heat in the fireplace is emitted to the room
and not out of the chimney after the last load in the
heating cycle. The damper has a small built-in opening,
so even when closed it protects against smoke being
produced and released. The flue damper must be open
during burning, but can be closed after the last load of
firewood has become ember.
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.
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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 yearly. 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.
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
opening 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.
GB