Barmat Castings PORTO User manual

INSTRUCTION MANUAL
- CAST IRON STOVE – PORTO

INSTRUCTION MANUAL – Cast iron stove PORTO
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TABLE OF CONTENTS:
1. Package………………………………………………………………………………………………………..2
2. Technical data……………………………………………………………………………………………...2
3. Installation……………………………………………………………………………………………….….3
3.1. Conditions…………………………………………………………………………..……...…....3
3.1.1. Ventilation………………………………………………………………………………...3
3.1.2. Localization……………………………………………………………………………….3
3.1.3. Floors and walls…………………………………………………………………………3
3.1.4. Uneven surfaces………………………………………………………………………...4
3.2. Exhaust – chimney……..…………………………………………………………………….4
4. Usage……………………………………………………………………………………………………………4
4.1. uel………………………………………………………………………………………………......4
4.1.1. Recommendations ……………………………………………………………………4
4.1.2. Forbidden fuel………………………………………………………………………......4
4.2. Exploitation……………………………………………………………………………………...5
4.2.1. First usage…………………………………………………………………………………
4.2.2. Further exploitation…………………………………………………………………...
4.2.3. How to start a fire…………………………………………………………………..…..
5. Maintenance………………………………………………………………………………………………..6
5.1. Ashes removal……………………………………………………………………….…………6
5.2. Stove cleaning……………………………………………………………………………….….6
.2.1. Seasonal maintenance…………………………………………………..………..….6
5.3. Exhaustion………………………………………………………………………………………..6
6. In case of problems..............................................................................................................6
7. Guarantee conditions..........................................................................................................8
8. Scheme and part list.............................................................................................................9

INSTRUCTION MANUAL – Cast iron stove PORTO
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Thank you for purchasing the Barmat stove. You have become an owner of
appliance that will bring heat, warmth and unique atmosphere to your home.
The product is a highly functional and durable appliance. Please read carefully the
instruction manual to make sure that the stove will be used correctly and to ensure its
optimal performance.
The 5-year guarantee granted by the producer is valid only if the product is used
and installed in accordance with the instruction manual and in the strict application
of building regulations and all safety precautions.
GENERAL IN ORMATION
1. Package
Content:
- Stove
- Instruction manual
- Cast iron cauldron
- Protective glove
- Repair kit – paint, glue, brush
2. Technical parameters
Warnings!
The stove should be transported in a vertical position!
The product is dedicated to wood burning.
Incorrect installation may cause serious accidents.
An installation by competent personnel is required. The manufacturer does not
take responsibility for defects due to an installation error or a product misuse.
Dimensions:
56x46x78cm
Maximal output:
9kW
Heating efficiency:
73%
Firewood maximum length:
40cm
Flue outlet:
top & rear
Flue diameter:
140mm
Weight:
113kg
Refractory bricks:
no

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3. Installation
3.1. Conditions
3.1.1. Ventilation
In the combustion process sto es absorb air from the surroundings. To allow a correct natural draught
and users comfort make sure that sufficient amount of air is a ailable in the room where installation is
considered.
Especially in highly insulated rooms make sure that the amount of air is sufficient for correct combustion
and that the room remains properly entilated.
In rooms equipped with mechanical entilation an outside air intake (around 50 cm2) has to be installed in
the chimney.
Before installation the chimney´s condition has to be erified. The chimney has to be clean and inspected
for leaks and sufficient draught. Make sure that the flue is not shared with any other appliance.
3.1.2. Localization
Cast iron sto es emit heat by radiation of cast iron parts. To pro ide an optimal heat distribution a central
location is recommended. Due to high temperature of the cast iron make sure that the appliance is
protected from children.
3.1.3. Walls and floors
Before installation make sure that floors and walls are not combustible or co ered with combustible
materials (i.e. tapestry, carpets, panels, plastic surfaces).

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A correct sto e location requires, depending on a model, from 150 to 220mm gap at each side of the
appliance.
Especially in case of old buildings make sure that the floor has a sufficient load bearing capacity. In some
cases, enforcement of the structure can be necessary.
The surface where the sto e will be installed should be e en and flat. In case of floors and walls made of
combusti e materials additional protection such as marble, tin or granite panel will be required.
The safety measures ha e to be applied as well in direct surrounding of exhaustion canals.
3.1.4. Uneven surfaces
To mitigate troubles with installation in rooms with une en floors it is possible to regulate a le el of e ery
leg separately (in models Porto, Almeida, Madeira, Morena).
3.2. Exhaustion - chimney
For effecti e exhaustion it is essential to follow the guidelines:
• Positioning of the pipes should be maximally ertical to maximize effecti eness of exhaust system.
• A oid 90º angels if a bypass is required. In that case we recommend a bypass with 45º angles.
• If the flue pipe transport smoke directly outside of the chimney, it should protrude 40 cm abo e the
chimney le el.
4. Usage
4.1. Fuel
Use a recommended fuel to ensure optimal sto e efficiency. Actual heat output can differ significantly
depending on wood type, its hardness and moisture.
4.1.1. Recommendations
We highly recommend hard wood logs of broad leaf trees (with moisture le el below 15-20%). Make
sure that the logs are cut accordingly to the burning chambers requirements. To obtain
recommended moisture le el wood should be stored in dry and well entilated place around one, two
years. Recommended wood: oak, hornbeam, beech, ash wood, acacia.
4.1.2. Prohi ited fuel
It is prohibited to use:
• any form of coal, other minerals or solid mineral fuel
• exotic wood
• green wood or damp wood (with moisture le el abo e 20%). It significantly reduces efficiency and
can cause deposition of soot, tar etc. inside the burning chamber and exhaust
• processed wood (laminated, impregnated etc.), chipboards, pallets, waste wood etc., that can block
installation, ha e negati e en ironmental effect and limit durability of the sto e (due to a high risk of
o erheating) and cause high fire hazard
• chemical liquids, such as: petrol alcohol, oil
• trashes

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4.2. Exploitation
4.2.1. First usage - tips
During the first lightning, fire should be progressi ely increased and a high le el of air circulation has to
be ensured. At the first hours of operation the sto e can gi e off fumes of a new paint and chemical
substances from the burning chamber.
During the first usage do not put a full load of logs and do not lea e the sto e unsuper ised.
4.2.2. Further exploitation
During the first phase of lightning make sure that air regulation is fully open. If any additional equipment
of the sto e (i.e. pipes) is equipped with additional flaps, make sure that they are fully open during the
lightning process.
To lit a fire use firelighters or some small dry pieces of a hard wood. Start a fire and push the door
slightly, but do not close them. When the fire becomes stable add logs to the burning chamber (for more
tips how to start a fire - see 4.2.3.). Close the door and adjust air regulation that the fire will reach the
le el according to your preferences.
4.2.3. How to start a fire
1. First make sure that you ha e all necessary items prepared and near at hand: a couple of logs of dry
wood, some small and medium dry wood pieces, firelighters or newspaper, matches.
2. To set a fire, use firelighters or some bunched paper to start the ignition.
3. Put pieces of small and dry wood o er the firelighters or paper. Only then place the standard logs into
the burning chamber.
There are two ways to build a fire - bottom up (bigger pieces of wood on the top) and top down (bigger
pieces of wood at the bottom). Note that the top down method generates less soot and ashes, better air
distribution and makes the first piece of wood last longer.
4. Before starting the fire, fully open all air flows in the sto e. Open the combustion chamber door and
light the fire you ha e built.
5. Lea e the door slightly open until the glass gets warm to a oid problems with condensation of water
on the glass.
6. When the fire becomes strong and stable, put on the big wood logs and close the door and all the air
entrances.
7. You can control the wood burning rate and heat output by adjusting the amount of air going into your
sto e. To adjust the fire le el to your preferences, use the airflow regulation of your sto e.
8. To refill the sto e open all air entrances fully, open the door and put logs inside. Then close the door
and adjust the air regulation.
5. Maintenance
5.1. Ashes removal
• Remo e ashes from the burning chamber regularly
• Make sure that ashes do not reach grate le el. Ash can block an air circulation and fire will be
suppressed. The lack of grate entilation can cause sto e damage.
• Remo e ashes only when the burning chamber is cooled down

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5.2. Stove cleaning
• A sto e should be cleaned regularly
• Open the door and make sure that the appliance is cooled down. Take out all the remo able parts
from the burning chamber and clean the inside walls. Than clean all the parts remo ed from the
burning chamber.
• To clean the glass use products fit for the purpose. At the end rinse the surface with clean water and
dry the glass with a soft cloth
• Ceramic glass is a material highly resistant to high temperatures. In case of glass damage it must be
replaced by an authorized product that will ensure safety and optimal operation.
• All external surfaces can be cleaned with a softly damped cloth when the appliance is cooled down.
5.2.1. Seasonal maintenance
After each heating season a complete maintenance of the appliance is required. Proper maintenance
of the sto e impro es durability of the product and its long term effecti eness.
• At the end of each heating season all parts of the appliance ha e to be thoroughly cleaned
• Take out all remo able parts from the burning chamber. Scrub all cast iron parts of the sto e with
a wire brush to remo e residuals of burning process
• At the end of a season exhaust system should be cleaned by a qualified specialist
5.3. Exhaustion
Flues and chimneys ha e to be kept in an optimal condition to allow a correct smoke circulation. To
make sure that the system is well maintained and free of soot, tar and etc. contact with a qualified
specialist regularly.
6. In case of problems
Issue
IssueIssue
Issue P
PP
Possible cause
ossible causeossible cause
ossible cause Counteraction
CounteractionCounteraction
Counteraction
Difficulties with s
Difficulties with sDifficulties with s
Difficulties with starting
tartingtarting
tarting
and k
and kand k
and keeping a fire
eeping a fireeeping a fire
eeping a fire
Green or damp wood
Green or damp woodGreen or damp wood
Green or damp wood • Use recommended dry and hard wood
stored in well ventilated place with moisture
level below 20%
Too thick logs
Too thick logsToo thick logs
Too thick logs • To start a fire use firelighters or some
small dry pieces of a hard wood
Poor
PoorPoor
Poor quality
qualityquality
quality wood
woodwood
wood • Use a hard wood logs characterized by
high calorific value, i.e oak, beech or
hornbeam
Insufficient air flow
Insufficient air flowInsufficient air flow
Insufficient air flow • ake sure that air regulation is fully open
• Provide better ventilation of the room
Insufficient draught
Insufficient draughtInsufficient draught
Insufficient draught • Verify a flue condition. ake sure it is
clean, not obstructed and properly installed.
Too high fire level
Too high fire levelToo high fire level
Too high fire level Too much draught
Too much draughtToo much draught
Too much draught
• Adjust air regulation of the stove
• In case of additional flaps regulate the

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draught
E cessive
E cessive E cessive
E cessive draught
draughtdraught
draught
• Install an additional draught regulation in a
connector pipe
Poor
Poor Poor
Poor quality
qualityquality
quality wood
woodwood
wood • After starting a fire it is strictly forbidden to
use small pieces of wood.
• You must not use processed wood,
chipboards, pallets, waste wood or damp wood
• Use of forbidden fuels may cause
extensive fire and fire hazard
Smoke release
Smoke releaseSmoke release
Smoke release Cold flue outlet
Cold flue outletCold flue outlet
Cold flue outlet
• To heat the flue outlet light the fire in the
burning chamber with a ball of paper
Insufficient draught
Insufficient draughtInsufficient draught
Insufficient draught
• Verify a flue condition. ake sure it is
clean, not obstructed and properly installed.
Negative pressure in the
Negative pressure in the Negative pressure in the
Negative pressure in the
chimney
chimney chimney
chimney
• Install outside air intake in the chimney
Low heat output
Low heat outputLow heat output
Low heat output Poor quality wood
Poor quality woodPoor quality wood
Poor quality wood • Use a hard wood logs characterized by
high calorific value, i.e oak, beech or
hornbeam
Problems
Problems Problems
Problems with hot air
with hot air with hot air
with hot air
circulation
circulationcirculation
circulation
• Check the air circulation in all parts of the
air flow system (air inlet, air regulators, air
circulation devices, air outlet etc.)
• ake sure that adjoining rooms are
equipped with ventilation grids to allow hot air
circulation

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7. Guarantee conditions
• The Barmat Castings sto es come with 5 year guarantee for the cast iron body.
• The guarantee co ers manufacturing defects as well as defects in materials.
• For glass elements the guarantee co ers exclusi ely thermal damages. Mechanical damages are
excluded from the guarantee. The sto e condition has to be erified on deli ery.
• The guarantee does not co er any damages resulting from:
o incorrect installation, usage not in line with the instructional manual or building regulations
o unauthorized product adjustments
o usage of accessories unauthorized by the producer
o usage of a fuel not recommended in the instructional manual
o improper use
• All damages should be reported directly to a dealer or installer
• Consumable parts such as grate, ropes, refractory bricks or deflectors are excluded from the guarantee.
A d m i n i s t r a t i o n

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8. Scheme and parts list
Parts list
1
Base 7
Front panel 13
Airflow regulation
2
Front legs (2 units) 8
Flue baffle 14
Ceramic glass
3
Back legs (2 units) 9
Grate 15
Ash-pan
4
Back panel 10
Top plate 16
Door knob
5
Left side panel 11
Co er of flue outlet 17
Base of top flue outlet
6
Right side panel 12
Doors 18
Legs regulation