ABC PROIZVOD Concept 2 air User manual

Founded in 1990
TECHNICAL MANUAL
for solid fuel burning cookers
Concept 2 air
and
Concept 2 mini air

Dear customers,
Thank you for your trust and congratulations, because by this purchase you
have become a member of a large family of satisfied customers of “ABC
PROIZVOD”.
We expect you to soon make sure that you chose a high-quality and cost-
effective product, which is the result of long tradition of our company in the
manufacture of boilers, stoves and fireplaces for central heating.
In case of any doubts, dilemmas or questions, do not hesitate to contact us, no
matter in what place and from which dealer you purchased our product and we
will meet your needs with expert advices and technical support.
Respectfully.
Before using the cookers of air generation, carefully read this manual,
which provides important information regarding the safe installation, use
and maintenance of the device.

MANUAL CONTENT
1
Purpose 1
2
Technical specifications 2
3
Appearance and structure of the cookers 3,4
4
Safety instructions 5
5
Installation 6,7
6
Selection of fuel type 8
7
Regulation of draft 9
8
Use 10
•Initial firing 10
•Regulating the intensity of fire 11
•Baking and cooking of food 11
9
Cleaning and maintenance 12-14
10
Operation irregularities and their elimination 15
11
Warranty 17
12
Appendix 18
13 Additional US and Canadian Installation Instruction 19-37
„ABC PROIZVOD“ LLC, Serbia; 31000 Užice; 2, Miloš Obrenovićstr.
[phone], 514-501;
e-mail: [e-mail]; www.abcproizvod.co.rs
Safety: UL1482 ; ULC-S627
Tested by: GUARDIAN Fire Testing Laboratories, Inc
[email protected]
www.firetesting.com
Imported by: Sopka Inc
www.sopkainc.com
[e-mail]
U.S. ENVIRONMENTAL PROTECTION AGENCY
This unit is not a certified residential wood heater. The primary use of this unit is
for cooking or baking.

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 1
1. PURPOSE
Cookers of air generation are produced in two models:
-Concept 2 air and
-Concept 2 mini air,
They are intended for cooking and baking food.
They use solid fuels: dry wood, coal or briquettes.
They give the impression of fireplace, thanks to a fireproof glass on the firebox
door.
The construction of the air cooker allows precise regulation of the intensity of
temperature, easy adding of the fuel and simple removal of the combustion
products.
Air cookers provide:
•reliable operation
•high level of energy efficiency (85%),
•preservation of the environment (environment-friendly) and
•long life,

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 2
2. TECHNICAL SPECIFICATIONS
Air cookers are made of a certified boiler plate. At higher temperatures we
guarantee chemical composition and mechanical properties of the cookers.
They are welded with the latest welding methods.
(Table 1) Technical specifications for the air cookers
Characteristics: M.U. Concept 2
air Concept 2 mini air
Power kW 5÷12 4÷10
Degree of efficiency % 85 85
Weight kg 190 155
Cooker dimensions: - width 1010 565
- height mm 850 975
- depth 535 520
Oven dimensions: - width 420 350
- height mm 230 230
- depth 410 410
Stovepipe/chimney connection - diameter Ø120 Ø120
- height from the floor mm 747 873
Airflow (draft) required Pa 12 12
(Table 1) Technical specifications for the air cookers
Characteristics: M.U. Concept 2
air Concept 2 mini air
Power btu 42,000 35,000
Degree of efficiency % 85 85
Weight lbs 418 341
Cooker dimensions: - width 39.76 22.25
- height in 33.46 38.38
- depth 21.06 20.50
Oven dimensions: - width 16.54 13.78
- height in 9.10 9.10
- depth 16.14 16.14
Stovepipe/chimney connection - diameter Ø6 Ø6
- height from the floor in 29.41 34.37
Airflow (draft) required wc 0.0482 0.048

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 3
3. APPEARANCE AND STRUCTURE OF THE COOKERS
3.1. Concept 2 air cooker
1. Firebox door 10. Stovepipe connection, side
2. Ashtray door 11. Stovepipe connection, through hob
3. Oven door 12. Stovepipe connection, back
4. Oven thermometer 13. Latch for closing the door
5. Firewood drawer 14. Removable handle
6. Hobs 15. Cover of cleaning opening
7. Primary “P” airflow (draft) regulator 16. Rear side (back)
8. Secondary “S” airflow (draft)
regulator 17. Opening for outdoor air supply
9. Smoke direction regulator
(Fig. 1) Cooker Concept 2 air - left

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 4
3.2. Concept 2 mini air
1. Firebox door 9. Oven grate
2. Ashtray door 10. Stovepipe connection, back
3. Oven door 11. Latch for closing the door
4. Oven thermometer 12. Removable handle
5. Flue pipe connector 13. Rear side (back)
6. Hob 14. Opening for outside air intake
7. Primary “P” airflow (draft) regulator 15. Openings for radiation of hot air
8. Secondary “S” airflow (draft)
regulator
(Fig. 2) Cooker Concept 2 mini air

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 5
4. SAFETY INSTRUCTIONS
Air cookers are designed to provide maximum safety in operation.
Cooker must not be located on a flammable surface (wood, plastic, etc). If a
flammable surface, it should be covered with fireproof layer, which exceeds the
dimensions of cooker by 8” (20cm) on the back and the sides, and 18” (46cm)
on the front.
Above the cooker hobs there must not be a wooden shelf or similar furniture.
Figure 3 shows the radiation zone of the cooker, and a minimum distance from
flammable and heat-sensitive objects, for Concept 2 Air and Concept 2 mini Air.
(Fig. 3a) Concept 2 Air; 1- fireproof layer, and 2- radiotion zone of the cooker
(Fig. 3b) Concept 2 mini Air; 1- fireproof layer, and 2- radiation zone of cooker

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 6
One must not use gasoline or other flammable liquids for firing.
During operation, the outer surfaces of the cooker are very hot, so the cooker
poses a risk of burns.
Unattended children are not allowed to be near the stove during operation.
It is forbidden to burn in the cooker waste materials that are hazardous to the
environment and can damage the whole combustion system of the cooker.
It is forbidden to store flammable materials in the drawer of the stove (Concept
2 air).
It is forbidden to dry the clothes directly on the stove. Drier must be out of the
radiation range of the cooker.
Any alteration and modification of the stove is forbidden. Only original parts
provided by the factory “ABC PROIZVOD” LLC, Užice, can be used.
Air cookers must be connected to a chimney that meets all national regulations
and standards.
In a radius of 18” around the cooker flue pipe (shuttle) it is necessary to remove
all flammable or heat-sensitive materials.
During the first firing paint burning occurs on the stove. We suggest the first
firing to be carried out outdoors or in a well ventilated room.
5. INSTALLATION
A room in which the air cooker is installed must have enough fresh air. If
windows and doors are well sealed and a room is not ventilated, one can face
with the situation that there is no enough fresh air needed for good combustion
and reliable operation of the stove.
The chimney is a very important element of the heating system, which must
comply with all national regulations and standards.
Air cooker, achieves declared power only if the chimney is properly sized and
positioned above the roof.

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 7
Sizing and verification of the chimney (height, cross-section, isolation and
positioning of the chimney above the roof top) performs the designer based on
the capacity of the cooker, fuels, necessary draft and other.
If there is a large draft it can be regulated by installing a flap with positioner on
the flue pipe.
Flap is not part of the basic equipment, but can be ordered from your dealer or
the factory.
Diameter of the chimney must be greater than or equal to the diameter of the
flue pipe (shuttle) on the cooker.
All connections in the system: cooker, shuttle, and chimney must be tightly
sealed.
CORRECT INCORRECT
(Fig. 4) Tightness of the cooker, pipes and chimney
INCORRECT INCORRECT
(Fig. 5) Only one appliance per chimney
Flue pipe enters the chimney only by the thickness of the wall of the chimney.
Sealed
Cleaning
opening
sealed

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 8
CORRECT INCORRECT
(Fig. 6) Connecting the flue pipe (shuttle) to the chimney
Positioning of the chimney top above the roof level depends on the slope of the
roof and the horizontal distance of the chimney from the roof top.
(Fig. 7) The angle of the roof ≥20° (Fig. 8) Chimney cap
For roof angle of <20°, the top of the chimney must be above the roof for a
minimum of 1.5 m.
6. SELECTION OF FUEL TYPE
Air cookers use all kinds of natural wood, pieces of bark, wood, coal or
briquettes.
It is recommended to use dry beech wood, moisture content not exceeding
20%.
If the wood humidity is high, moisture evaporation occur and it condense on the
inside parts of the cooker and thus damage occur.

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 9
It is not allowed to use lacquered wood, laminated wood, wood coated with
plastic, wood treated with preservatives, flammable liquids, including methanol
and ethanol and other household waste.
Combustion of said illicit materials, besides producing a very unpleasant odor, it
also generates harmful emissions that affect the health of living beings and
pollute the natural environment.
7. REGULATION OF DRAFT
Air cookers are equipped with a unique system for draft (airflow) regulation for
combustion of a fuel.
By simply regulating the draft of the primary “P” and the secondary “S” airflow,
in any moment you can get the maximum degree of efficiency, minimum fuel
consumption and minimal emissions to the environment.
Proper regulation of the draft makes flue ducts cleaner, firebox door glass is not
sooty and there is no emission of harmful gases into the atmosphere.
Draft regulation is performed with two handles located on the front below the
ashtray door and are connected with flaps that cover the openings for the intake
of fresh air into the firebox.
Concept 2 air cooker is produced in two versions: left-sided or right-sided.
On the left-sided cooker, oven is located on the left side of the cooker and the
lever for regulating the secondary draft is the left one, indicated with letter “S”
(Fig. 9, item 2).
On the right-sided cooker, oven is located on the right side of the cooker and
the lever for regulating the secondary (“S”) draft is on the right.
Primary lever (indicated with letter “P”) is used for fine-tuning of the flow of
primary air through the grate of the firebox into the fuel area (wood, briquettes,
coal).
Secondary “S” lever is used for fine-tuning of the flow of secondary air through
special tunnels of the firebox. Part of the heated air goes into the upper zone of
the firebox and the second part in front of the firebox door glass.
Supplying the fresh primary air (oxygen) in the area around the fuel enables the
combustion. During this process, there is a release of gas from the fuel. Gases
are raised up in the combustion chamber in the direction of draft flow and meet
with secondary air (oxygen) that allows their complete combustion.

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 10
For proper operation of the draft regulator, ashtray door and firebox door must
be closed.
1. „P“ lever
for regulating the
primary air
2. „S“ lever
for regulating the
secondary air
3. lever for regulating
the path of flue
gases
(Fig. 9) Concept 2 air cooker – left-sided (oven is located on the left side of the
cooker)
8. USE
Air cookers are designed for space heating, cooking and baking food.
Depending on your needs, their operation is regulated manually.
-Initial firing
Air cookers use solid fuel, as all permanent-fervency products.
Firing of small wood pieces and paper, located on the firebox grate, is
performed through opened firebox door.
During initial firing, it is necessary that the primary and secondary flaps for fresh
air are positioned for maximum intake (pull levers “P” and “S” towards yourself
to the end).
Flap for regulating the path of flue gases (only in model Concept 2 air, Fig. 9,
item 3) should also be opened to the maximum (pull lever towards yourself to
the end).
Close the firebox door.
After initial firing fill the firebox with fuel. When the fire flares up close the flap for
regulating the path of flue gases (only for the model Concept 2 air, Fig. 9, item

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 11
3) and levers for regulating the draft “P” and “S” (Fig. 9, items 1 and 2) position
depending on the desired intensity of the fire.
Firing should be started with moderate intensity in order to avoid sudden
changes in temperature.
-Regulating the intensity of the fire
When the fire flares up after initial firing:
•Muffle the supply of primary air. How long do we leave the draft,
depends primarily on the desired intensity of fire (required KWs), the
quality and type of fuel, the chimney, the atmospheric pressure outside
and other.
•After reaching the desired temperature, close the primary draft flap and
keep the secondary draft flap open.
•Secondary air draft is used for burning out the fumes from the fuel.
•Secondary draft is regulated according to the intensity of the fire
(flames) in the combustion chamber. Larger fire in the furnace requires
a greater amount of secondary air and vice versa.
. -Baking and cooking of food
Air cookers easily reach temperatures for the thermal preparation of food.
For reaching the desired temperature faster, use dry firewood.
Insert a larger amount of the fuel in the firebox. More intensive fire is achieved
with higher air draft (oxygen) through the firebox.
Oven includes movable grate made of stainless steel which is used for placing
the food baking tray. Two food baking trays can be placed in the oven at the
same time.
Achieving the desired temperature in an oven is monitored via thermometer
which is located on the oven door.
If the temperature of the hob on the Concept 2 mini air cooker is unsatisfactory
(inadequate draft due to improperly constructed chimney or other) it is
necessary to remove the partitioning battens (1 and 2) located left and right
from the oven.

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 12
Battens can be reached by
lifting the hob of the cooker.
First, remove the top batten
(1) and then use the wire
with a hook at its end, to
hook the bottom batten (2)
through the hole located at
the end of the batten and
take it out.
We recommend that you first
remove the lower partitioning
battens (2), and only if
necessary the top battens
too (1).
This way you can adjust the
operation of the cooker –
hob in accordance with your
chimney.
(Fig. 10) Concept 2 mini air cooker cross section
9. CLEANING AND MAINTENANCE
It is necessary to properly maintain air cookers for a longer duration and theirs
proper operation.
All cleaning of the external or internal surfaces should be performed when the
cooker is cold.
Empty ashtray daily. Keep the area around the ashtray clean.
The outer surface of the air cooker should be cleaned with a damp cloth using a
mild detergent.
All stainless steel surfaces should be cleaned with alcohol-based products and
tools that are intended for this purpose.
Cookers’ hobs are coated with a protective fireproof paint, which protects them
from corrosion until the beginning of the use of the cooker.
The paint on the cooker hobs is not resistant to mechanical damage.

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 13
When cooking on the hob, pulling pans without lifting them from a hob, can
damage the hob paint.
Hobs should be maintained in a classic way, with sponge (hard side) and fine
abrasive tools – sandpaper.
Any scrubbings should be removed mechanically using the blade tools.
In the event of a longer delay in the use of the stove, hobs should be coated
with acid-free oils.
Oven is made of stainless steel. Clean the oven after each use.
The inner surfaces of the cooker, where flue gases are passing, should be
periodically cleaned. The frequency of cleaning depends primarily on the quality
of fuel.
Perform cleaning at least once per month, as follows:
a) Concept 2 air cooker (See Fig. 11):
•First, remove the hobs from the cooker and clean their bottom side from
deposits of combustion products.
•Use blade tool to scrape layers of combustion products from the interior
walls. Deposits that have fallen on the floor under the oven should be
pushed out off the cooker, through the hole located on the front, below
the oven door.
•The manufacturer recommends the use of chemical agents
“Astratherm” which facilitates mechanical removal of combustion
products deposited on the interior walls of the cooker.
•In order to reach the hole for pushing the scraped layers out, the front
mask and the cover should be previously removed. Front mask is
removed from the holders simply by pulling the mask towards you.
•Cover of the opening for cleaning is removed by unscrewing the two M6
wing nuts. When removing the cover take care not to damage the
gasket that is under the hood.
•When cleaning it is necessary to remove the chamotte and vermiculite
boards.
•The assembly of parts is the opposite of disassembly procedure. Make
sure the gasket that is under the cover of the opening for cleaning is
well placed. The cover does not allow the passage of air and flue gas.

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 14
(Fig. 11) 1 – front mask of the opening for cleaning and 2 - opening for cleaning
after removing: the mask, the cover and the gasket of the opening for cleaning.
b) Concept 2 mini air cooker (See Fig. 12):
•First, remove the hobs from the cooker and clean their bottom side
from deposits of combustion products.
•Remove and clean partitioning battens around the walls of the oven
(2 and 3)
•Use blade tool to scrape layers of combustion products from the
interior walls. Deposits that have fallen on the floor under the oven
should be pushed out off the cooker, through the opening located on
the back of the oven.
•In order to reach the opening for pushing out the scraped layers, first,
it is necessary to remove the back sheeting (4) and the cover (5).
•Back sheeting (4) is removed by unscrewing the 6 screws connected
to the side sheeting’s and 2 screws connected to the body of the
cooker.
•Cover (5) is removed by unscrewing 9 screws. When removing the
cover take care not to damage the gasket that is under the cover.
•When cleaning, it is necessary to remove the chamotte and
vermiculite boards.
•The assembly of parts is the opposite of disassembly procedure.
Make sure the gasket that is under the cover of the opening for
cleaning is well placed. The cover does not allow the passage of air
and flue gas.

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 15
(Fig. 12) Cleaning the flue pipes around the oven
10. OPERATION IRREGULARITIES AND THEIR ELIMINATION
Dear users of the air generation of cookers, the proper use and maintenance
can guarantee you a long-time reliable partner for comfortable heating.
The following table shows the most common operation irregularities and
recommendations for their elimination.

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 16
(Table 2) Operation irregularities and their elimination
No.
Defect Possible cause Defect elimination
1
Difficulties in firing
- Draft regulators
closed
- Wet wood
- Lack of oxygen in the
Room
- Open the draft
regulators
- Use dry wood
- Ventilate the room
2
Heating, cooking and
baking is poor - Improper usage - Poor chimney
- Read this manual
carefully
- Check the chimney
3
Firebox door glass is
getting sooty in a short
time
- Secondary air inlet
is closed
- Wet wood
- Insufficient draft
- Open the secondary
air draft regulator
- Use dry wood
- Clean the cooker,
shuttle or chimney
- Check the
connections between
the cooker, shuttle
and chimney
4
Smoke comes under
the hobs
- Draft regulators are
closed
- Insufficient draft
- Ash from the firebox
grate is not
cleaned
- Open the primary
draft regulator
- Clean the cooker or
the chimney
- Check the
connections between
the cooker, shuttle
and chimney
- Clean the firebox
grate
If you failed to remove technical defects due to the possible production
deficiencies, please contact the factory “ABC PROIZVOD” LLC, Užice, for
advice/intervention.
11. WARRANTY
The company “ABC PROIZVOD” LLC,
Užice, for air generation of cookers gives
The exceptions to the five-year warranty are ceramic parts (chamotte, glass,
gaskets and vermiculite boards) of air cookers, for which the manufacturer
provides a 2 year warranty.
YEAR
WARRANTY

TECHNICAL MANUAL
www-abcproizvod.co.rs Page 17
Dear buyers, if you are not satisfied with your air cooker, please before you
decide to contact us requesting an intervention, pre-check the following:
1. Did you install your air cooker in accordance with instructions from the
manual in terms of:
•selecting the cooker power in relation with heating capacity;
•height, cross-section, isolation and ways of setting up the
chimney above the roof and
•proper connection between the cooker and the chimney via
shuttle.
2. Do you follow the prescribed regimen of heating and maintenance of
temperature for air cooker, in terms of:
•correct choice of fuel;
•regulating the primary and secondary draft;
•regulating the path of flue gases and
•mandatory closing the firebox and ashtray doors.
3. Do you properly maintain your air cooker, in terms of cleaning the soot
and tar from the inside of the stove, shuttles and chimney?
4. Did you perform some unsolicited modifications to the cooker?
Limited 5 year Warranty
"ABC Proizvod" warrants its products against manufacturing defects to the original
purchaser only—i.e., individual (register customer) whose name appear on the
warranty registration card., for a period of Five years (Two years on gaskets, glass
and firebricks), from date of purchase from only an authorized dealer.
If within the five-two year period, your product should develop a defect due to
materials or workmanship of the original new product, ABC Proizvod
(manufacturer), Sopka Inc (importer), or your authorized dealer will supply ONLY
the parts necessary to make the repairs. (Labor Not Included) and is subject to
following condition and limitations:
This limited warranty does not cover damages caused by misuse, lack of
maintenance, accident, alterations, abuse or neglect.
This limited warranty does not cover any scratches, dents, corrosion or discoloring
caused by excessive heat, cleaning chemicals, nor chipping on porcelain enamel
parts, nor any venting components used in the installation.
Installation must be done in accordance with installation instructions included with
product and all local and national building and fire codes.
ABC Proizvod manufacturer and Sopka Inc importer will not be liable for incidental
and consequential damage of any nature. This warranty gives the purchaser specific
legal rights which may vary from state to state. No other warranty is to be implied or
expressed, including warranties implied for a specific or particular purpose.
ABC Proizvod reserves the right to have its representative inspect any product or
part thereof prior to honoring any warranty claim.