Brunner Iron dog 03 User manual

IRON DOG 03
User manual

2 User manual IRON DOG 03 (1.0) © 2013 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.

© 2013 Brunner GmbH User manual IRON DOG 03 (1.0) 3
1 CONTENT
1 Content........................................................................... 3
2 My Iron Dog....................................................................4
3 Technical data................................................................5
4 Safety guidelines......................................................... 11
5 Basic principles........................................................... 13
6 Firewood and heating power......................................15
7 Seasoning of firewood................................................ 17
8 Amount of fuel............................................................. 18
9 Operation...................................................................... 19
10 Heating with the Iron Dog...........................................20
11 Ashes............................................................................ 22
12 Cleaning and maintenance......................................... 22
13 Hint................................................................................ 24
14 Error search................................................................. 25
15 Attention....................................................................... 27

4 User manual IRON DOG 03 (1.0) © 2013 Brunner GmbH
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!
2 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. Ash
boxes, screws and bolts are made of stainless steel. A special, tempera-
ture-firm color coating protects the surface. All components of this cast iron
stove are manufactured and assembled in Germany with great care

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3 TECHNICAL DATA
Illustr.1: measurements

6 User manual IRON DOG 03 (1.0) © 2013 Brunner GmbH
1 Ash pan
2 Air control push rod
3 Fire chamber
4 Hot plate
5 Fold hot plate parts

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Illustr.2: components

8 User manual IRON DOG 03 (1.0) © 2013 Brunner GmbH
1 Flor plate 2 Leg 1
3 Leg 2 4 Front
5 Air control rod 6 Air channel cover
7 Side wall left 8 Air diffuser plate
9 Bafle plate 10 Rear wall combustion chamber
11 Back wall 12 Side wall right
13 Hot plate assembly 13.1 Hot plate cover
13.3 Hot plate 13.4 Hot plate right
13.5 Top hot plate left 14 Exhaust gas stub
15 Firing door assembly 15.1 Firing door window
15.3 Firing door 15.4 Window frame firing door
15.5 Door handle assembly 15.6 Closing tonge
17 Hot plate holder left 18 Feeder
21 Cross web 23 Back air channel cover
24 Hot plate holder right 26 Bottom grate assembly wood
26.1 Bottom grate wood 26.2 Bottom grate
26.4 Bottom grate 28 Ash door assembly
28.2 Inner plate ash door 28.5 Ash door
29 Ash pan 30 Insulation panel

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Illustr.3: minimum distance

10 User manual IRON DOG 03 (1.0) © 2013 Brunner GmbH
values1)
nominal heat output kW 7
flue gas stream g/s 7,6
flue gas temperature (at port) °C 353
necessary draft Pa 12
consumption/ h kg 2
space heating capacity m350 - 90
degree of efficiency % 80,6
combustion air consumption m3/h 15
appliance data
dimension (h x b x t) mm 760 x 390 x 560
glass pane surface (h x b) mm 195 x 160
combustion chamber opening (h x b) mm 208 x 195
flue diameter space heating capacity rear wall
flue diameter mm 130
permitted fuel quantity kg 1,5 - 2,5
combustion chamber depth cm 38
recommended log length cm 25 - 33
cast iron weight kg 135
required minimum clearances
to the side wall cm 80
to the rear wall (with insulation panel) cm 30
to the rear wall (without insulation panel) cm 40
approvals
CE nach EN 13240
1) The data was determined in an EN 13240 test with a chimney stove with
a horizontal smoke tube connection, tube length 35 cm.

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4 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.
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.

12 User manual IRON DOG 03 (1.0) © 2013 Brunner GmbH
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!
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.

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5 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).
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.

14 User manual IRON DOG 03 (1.0) © 2013 Brunner GmbH
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.
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.

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6 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 dry, natural firewood with a water content
below 20% or wood briquettes according to DIN 51 731, size class HP2.
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 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, fresh-
ly 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 (picture
left) is the best fuel for fire-
places, but you can also use
wood briquettes complying
to DIN 51 731, size HP2 (pic-
ture right).

16 User manual IRON DOG 03 (1.0) © 2013 Brunner GmbH
How much thermal energy you will
get, if you buy wood by weight?
500 kg freshly cut wood Water content 50% 500 kg x 2.0 kWh/kg = 1000 kWh
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
How much thermal energy you will
get, if you buy wood by 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.

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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!
Never use combustible fluids, like petrol or alcohol as aids for
lighting fire!
Mind the waste incineration ban!
Remember to use only the recommended fuels described in this
User Guide. Improper, not recommended fuels cannot be burned
in a fireplace.
7 SEASONING OF FIREWOOD
After cutting the trees, the wood should be seasoned in an open and dry
place and protected from rain and snow.
The best time to cut trees is from December till February.
Firewood should be stored under a roof or in a ventilated building (shed).
Do not store freshly cut wood in the cellar or in a closed area. It can’t dry
there.
Our best 3 tips
for heating with wood to become an experience.

18 User manual IRON DOG 03 (1.0) © 2013 Brunner GmbH
1) dry wood
2) dry wood
3) dry wood
8 AMOUNT OF FUEL
Heat output regulation by combustion air reduction is wrong!
By lack of combustion air the calorific capacity of the fuel can’t be set free
completely. At the same time the emissions increase over the unburned
portions.
To large amounts of fuel or unsuitable fuel can lead to excessive heating
and thus to damage.
Filling weight Log lenght Log size
1,5 kg - 2,5 kg 25 cm - 33 cm 20 cm - 30 cm

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9 OPERATION
The combustion air is three fold: Pri-
mary air (1), secondary air (2), third
air (3). Primary air (1), secondary air
(2), tertiary air (3). Each of these air
flows is led across its own inlet and
internal distribution channels to its
respective place of task. Regulation
is done with the air control push rod
(4).
The primary air (1) has as task to
steer the degassing speed.
The secondary air (2) is neces-
sary additional and preheated air
that comes directly on the fuel from
above. The secondary air (2) is pre-
heated and additional necessary,
it comes directly on the fuel from
above. This air keeps the window
clean.
The tertiary air (3) is led directly in
the hot gas zone and brings in the
oxygen, necessary for a perfect
combustion of the gases.
Illustr.4: air flow control
The air control push rod (4) can be put in three different positions. This way
the respective air circulations are adapted to the combustion situation.

20 User manual IRON DOG 03 (1.0) © 2013 Brunner GmbH
start-up output nominal heat closed
Combustion air com-
pletely open for a fast
start-up
Full heating
combustion
Air completely closed
The hot plates are designed for a max.
load of 10 kg.
For larger loads or abrupt opening risk
of breakage!
10 HEATING WITH THE IRON DOG
Control whether the ash pan must be emptied. Minimum distance be-
tween ash layer and bottom grate should be 3 cm.
Bring the push rod in its “Start-up” position. The combustion air can
flow strongly on the wood in order to reach fast high heating tempera-
tures.