Brunner IRON DOG 07 Manual de usuario
User guide
IRON DOG 07
©2018
2 User guide (1.1) © 2017 Brunner GmbH
Iron Dogs
are cast Iron stoves made in Germany, manufactured by a family business
in the 3th generation, specialized in making fireplaces. In this series all their
knowledge and craftsmanship come together in an exceptional stove of an
exceptional quality. Therefore also the exceptional name »IRON DOG« for
exceptional people or as a gift to friends.
Winter can come; we’re looking forward to it.
Welcome to the IRON DOG family.
Eggenfelden, August 2007
Ulrich Brunner
The name >>EISERNER HUND<< - >>IRON DOG<< - is a registered and
protected mark. Individual models are registered as design patents.
© 2017 Brunner GmbH User guide (1.1) 3
CONTENTS
1 My Iron Dog....................................................................4
2 Safety guidelines........................................................... 4
3 Basic principles............................................................. 6
4 Firewood and heating power........................................8
5 Seasoning of firewood................................................11
6 Amount of fuel.............................................................11
7 Components................................................................. 12
8 Operation...................................................................... 15
8.1 Lighting fire in a cold fireplace............................................ 17
8.2 Stoking up in a warm fireplace........................................... 17
9 Cleaning........................................................................18
10 Hint................................................................................ 20
11 Error search................................................................. 20
12 Attention....................................................................... 22
IRON DOG
Please read the entire User Guide before lighting the fire for the first time.
In particular, please note the safety precautions in this manual. The User
Guide, as well as national or EU standards and local regulations must be
observed. Your specialized enterprise and IRON DOG partner can give you
the most current information and details.
Please keep the User Guide for future reference!
4 User guide (1.1) © 2017 Brunner GmbH
1 MY IRON DOG
An EISERNER HUND is a special cast iron stove. It’s a friend for life. Its life
expectancy is about generations and it will do good services to its owners –
therefore treat it well.
Nearly all components of the IRON DOG are made of solid cast iron. A spe-
cial, temperature-firm color coating protects the surface. All components
of this cast iron stove are manufactured and assembled in Germany with
great care
2 SAFETY GUIDELINES
Radiation range
Do not bring inflammable materials within an 80 cm radiation
range of the IRON DOG! Fire risk! Don’t put inflammable objects
on the stove top, under the cast iron stove or in between the rear
of the stove and the wall behind.
© 2017 Brunner GmbH User guide (1.1) 5
First starting-up
Up to the first reaching of the maximum operating temperature
the protective paint hardens out. This can give some smelling nui-
sances. Provide therefore for sufficient ventilation of the installa-
tion area. Open doors and windows. Don’t stay unnecessarily in
the concerned area. Never use products as gasoline, white spirits
or the like to start a fire!
Burning risk
The external surfaces of the IRON DOG become hot, especially
the window of the fire door.
Don’t touch – Burning risk!
Particularly warn children for this. Keep children away from the
heated IRON DOG.
Use safety gloves during operation.
Ashes
Empty the ash pan only when the ashes are cold and keep them
during at least 24 h in a fire resistant container. Fire risk by re-
maining glow! In case of fire, call the fire-brigade!
Chimney fire
In case of a chimney fire, remove all inflammable objects from the
chimney. Beware of flying sparks. Call the fire-brigade!
6 User guide (1.1) © 2017 Brunner GmbH
Fire door
The fire door of the IRON DOG may only be opened for bringing
in wood or for cleaning. During use with open fire door, the stove
is too heavily charged, smoke or fire can come out and glowing
particles can be ejected. There is the danger of a flue gas poison-
ing. The fire chamber of the IRON DOG is also to be kept closed
when the stove is not heated.
The IRON DOG is equipped with a firing door and a large fire-
place door. Smoke escape!
Open the fireplace door only to clean the glass or reach the ash
box. Do not open during heating!
Refill with wood logs only from the side firing door. The stove will
be overloaded when operating with an open door. Smoke or fire
can escape, or embers can be thrown out.
3 BASIC PRINCIPLES
Cast iron stoves of the IRON DOG series function according to the prin-
cipal of ‘burning from above’ and are heated with the intermittent burning
method. The wood load degases with beautiful flames in approximately 60
- 70 minutes and produces a heating output between 5 - 9 kW/h depending
on the quantity of wood (1,5 kg - 2,5 kg).
© 2017 Brunner GmbH User guide (1.1) 7
Cast iron stoves of the IRON DOG series are tested according to EN
13240 / EN 12815 and can be used with a closed fire door. Connecting
more than one stove to a chimney is possible if the chimney is suited for
this (ask the chimney sweep).
Air supply to the setting up area
The IRON DOG can only function properly when combustion air supply at
the setting up area is sufficient. Before heating up make sure there is a suf-
ficient supply of fresh air. In the building existing mechanisms for combus-
tion air supply should not be changed.
Fuel
Use only suitable burning wood in the indicated quantities and qualities.
Too small amounts of burning wood lead to insufficient combustion quality.
Too large amounts of burning wood lead to overheating and damage to the
equipment. Fire risk!
Heat output
The cast iron stoves of the IRON DOG series are designed to be used with
the intermittent wood burning method; the heat output is determined by the
quantity of wood used and by the distances in time between the firing oper-
ations. The right time to put on more wood has come when the wood has
nearly been burned down to glow.
Combustion air regulation
For a simple operation the air income is regulated with one single air con-
trol rod. Please heat with the given combustion air regulations. Insufficient
combustion air leads to an increased environmental impact, bad efficiency
and creosote in the stove and the chimney.
8 User guide (1.1) © 2017 Brunner GmbH
Heating operation
We recommend using safety gloves during operation, since the operating
elements become hot. Open the door slowly – this way no turbulences de-
velop, which let flue gases esca.
Flue exhaust/heating during transitional periods
The IRON DOG needs sufficient chimney draught for drawing in the com-
bustion air and exhausting the flue gases. It diminishes with rising outside
temperatures and this can lead to problems to start a fire. When outside
temperatures are over 15°C, please check the chimney draught. (for exam-
ple open the door and keep a burning fire lighter at the entry of the flame
channel – flame and flue gases must visibly take off). In case of too little
draught first light kindling and add burning wood when the draught has
been created.
4 FIREWOOD AND HEATING POWER
The combustion process in our devices has been optimized to enhance
their performance and reduce emissions. You can support our efforts to
protect our environment by respecting the following recommendations for
low-emission heating: Use only brown coal briquettes and dry, natural wood
with a residual humidity factor below 20%, or wood briquettes according to
DIN EN 14961-3, Class A1, length >14 cm (5.51 in), diameter >8 cm (3.15
in).
© 2017 Brunner GmbH User guide (1.1) 9
Damp, freshly cut or improperly stored wood has a high water content,
therefore does not want to burn, makes a lot of smoke and gives not much
of heat. Use only firewood which has been stored for at least two years in
a dry place with sufficient air circulation. Because dry wood is much more
calorific, you can save on fuel costs.
For example: Dry wood has a calorific value of approx. 4 kWh/kg, freshly
cut wood only 2 kWh/kg. You will need twice the amount of wood to achieve
the same heating power.
Water content g/kg
wood
Calorific value
kWh/kg
Consumption
raised by %
very dry 100 4.5 0
stored for 2 years 200 4 15
stored for 1 year 350 3 71
freshly cut wood 500 2.1 153
Natural firewood (left) is the
best fuel for fireplaces, but you
can use also wood briquettes
according to DIN 14961-3,
Class A1, length >14 cm (5.51
in), diameter >8 cm (3.15 in)
(right).
What amount of heat will I get when
buying wood per weight?
500 kg freshly cut wood Water content 50% 500 kg x 2.0 kWh/kg = 1000 kWh
10 User guide (1.1) © 2017 Brunner GmbH
500 kg dried wood Water content 30% 500 kg x 3.3 kWh/kg = 1650 kWh
500 kg dry wood Water content 15% 500 kg x 4.1 kWh/kg = 2050 kWh
What amount of heat will I get when
buying wood per volume (1 cubic
meter = 1 m3)?
1 m3 freshly cut wood Water content 50% 1286 kWh
1 m3 dried wood Water content 30% 1518 kWh
1 m3 dry wood Water content 15% 1550 kWh
Most suitable for use in open fireplaces are all types of hardwood, like
beech or birch. Softwood species (conifers) have a closed-cell structure
which is bursting during combustion, causing glowing embers to be thrown
out of the fireplace. Hardwood is burning more calm and evenly.
You can control the heat radiation intensity by volume of wood and the in-
tervals for stoking up.
Adjusting the heat by reducing the volume of combustion air is wrong! If
there is not enough combustion air available, the energy contained in fire-
wood cannot be completely released. At the same time, the emissions are
rising due to unburned particles.
Too much of firewood or inappropriate fuel types can cause overheating
and damage.
No kind of waste shall be burned in a fireplace!
Waste on fire = Toxins in your garden!
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