ORTNER 1, 2, 3, 4 Assembly Manual

Assembly instructions

and operating manual

ORTNER Wood-fired oven (HBO)

To avoid any errors, please first carefully read our assembly instructions!

CAUTION: The door must be provided as a covering door; the oven opening is smaller

than the door (see chapter “Plaster support surface”)

The assembly manual provided below should merely serve as a guide. The details can

be designed individually.

The respective national or local regulations and general provisions, stipulations and

codes of practice must be complied with.

ORTNER GmbH
Hürmer Straße 36 Tel.: [phone] / 27 07 [e-mail]

A-3382 Loosdorf/Melk Fax: [phone] / 27 08 www.ortner-cc.at Page 1 of 25

ORTNER GmbH
Hürmer Straße 36 Tel.: [phone] / 27 07 [e-mail]

A-3382 Loosdorf/Melk Fax: [phone] / 27 08 www.ortner-cc.at Page 2 of 25

Contents

General information ................................................................................................................................................................. 3

Additional information in the event of the use of the wood-fired oven in the interior area ............................................... 4

Technical specifications ............................................................................................................................................................ 5

It is prohibited to use the following substances for combustion ........................................................................................... 5

Design examples ....................................................................................................................................................................... 6

Foundation preparation ........................................................................................................................................................... 7

Base frame, base, substructure of the wood-fired oven ...................................................................................................... 10

Assembly of the interior parts ................................................................................................................................................ 12

Model 0 ............................................................................................................................................................................... 12

Model 1 & 2 ........................................................................................................................................................................ 13

Model 3 & 4 ........................................................................................................................................................................ 14

Further assembly (all models) ........................................................................................................................................... 16

Insulation of the jacket segments .......................................................................................................................................... 17

Plaster base surface ................................................................................................................................................................ 18

Information on the heating procedure .................................................................................................................................. 19

Tips for your customers .......................................................................................................................................................... 19

Dimensioned drawings ........................................................................................................................................................... 20

Model 0 (art. no. 1500000) ............................................................................................................................................... 20

Model 1 (art. no. 1500001) ............................................................................................................................................... 21

Model 2 (art. no. 1500002) ............................................................................................................................................... 22

Model 3 (art. no. 1500003) ............................................................................................................................................... 23

Model 4 (art. no. 1500004) ............................................................................................................................................... 24

Accessories for ORTNER wood-fired oven ............................................................................................................................. 25

ORTNER GmbH
Hürmer Straße 36 Tel.: [phone] / 27 07 [e-mail]

A-3382 Loosdorf/Melk Fax: [phone] / 27 08 www.ortner-cc.at Page 3 of 25

General information

 Before the commissioning of the firing installation, read this operating manual and assembly instructions and

observe the warnings and cautions. As soon as the commissioning of the oven has been performed, the
operating manual and assembly instructions including all usage regulations are considered as accepted without
exception, this also applies in the event that the operating manual and assembly instructions have not been
read.

 Heat energy is released with the combustion of wood, which leads to a strong heating up of the surrounding

parts. Coming into contact with these components without the use of corresponding protection or aids (heat­protection glove) must be prevented.

 Ensure sufficient distance to combustible objects.

 Instruct your children of this particular hazard and keep them out of reach of the oven during heating

operation.

 It is prohibited to place objects that are not heat-resistant on the firing installation or to bring them into its

vicinity.

 The handling of highly combustible or explosive substances is prohibited during the operation of the oven.

 Operating errors can lead to deflagration and as a result to the damaging of the oven or cause severe injuries.

 Only spare parts approved by the manufacturer may be installed.

 The most important precondition for the proper and reliable function of your wood-fired oven is dry, untreated

hardwood (permissible types of wood: beech, birch, hornbeam) with a maximum residual moisture content of
20%. Wood will only achieve an optimal heating value when it has been stored dry and ventilated under a roof
for at least two years.

 In addition to a greatly reduced heating value, wet wood generates an excess of shining soot deposits (pitch-

like deposit) on the ceramic components as well as the chimney (risk of a chimney fire in the event of indoor
installation).

 In regard to the use of the processing materials, pay attention that these are suitable for the exterior area or

the respective area of application.

 Additionally, it is recommended to protect the Ortner wood-fired oven against weather influences (e.g. driving

rain). This can for example be performed with a roof, a pergola or a protective tarpaulin (please note that the
wood-fired oven poses a possible source of flying sparks).

 Please remember that all national laws/regulations (e.g. building regulations, safety distances, etc.) must be

complied with for the installation of the oven.

ORTNER GmbH
Hürmer Straße 36 Tel.: [phone] / 27 07 [e-mail]

A-3382 Loosdorf/Melk Fax: [phone] / 27 08 www.ortner-cc.at Page 4 of 25

Additional information in the event of the use of the wood-fired oven in the interior area

 Please note that neither combustible nor explosive substances may be located in the installation space of the

oven.

 The wood-fired oven may not be installed in spaces with insufficient combustion air supply. (CAUTION: Please

note that newly constructed or renovated buildings can be very airtight and as a result, a sufficient combustion
air supply may not be possible without additional equipment.)

 The wood-fired oven may not be operated in installation spaces that are ventilated by means of fans in

ventilation or heating air systems with the exception that the safe operation of the oven can be ensured. This
means:

 A simultaneous operation of an air extraction system and the firing installation must be prevented.
 The negative pressure in the installation space must be prevented automatically and reliably by means of

corresponding safety equipment.

 Overall, the negative pressure generated as a result of the combustion air flow of the oven and the volume

flows of the ventilation systems in the installation space and the rooms connected via the ventilation
system may not exceed a value of 2 Pa. This must also be ensured in the event of the adjustment or
removal of easily accessible control devices of the ventilation system.

 The system may only circulate the air within a room.

 The oven may not be installed in freely accessible spaces or on freely accessible areas (this also includes

stairwells in the event of multiple tenants). Installation/exhibition spaces are exempted from this; however,
the firing installation must be operated under expert supervision.

 No combustible objects may be located at a distance of 80 cm to the adjustment door.

 Attention must be paid that the installation of the wood-fired oven is only permitted on those locations in

which a sufficient load-bearing capacity of the installation area is ensured. Should this not be the case, then
additional measures must be taken to achieve this (e.g. incombustible board for the distribution of the load).

 The regular cleaning of the chimney may only be performed by a licensed specialist.

 This firing installation is NOT suitable for multiple connections of the chimney.

 The firing installation must be connected in a gas-tight manner in the event of a vertical connection of the

chimney.

 Consult your local chimney sweep on the suitable chimney connection.

ORTNER GmbH
Hürmer Straße 36 Tel.: [phone] / 27 07 [e-mail]

A-3382 Loosdorf/Melk Fax: [phone] / 27 08 www.ortner-cc.at Page 5 of 25

Technical specifications

Ortner wood-fired oven

Variant

Model 0

Model 1

Model 2

Model 3

Model 4

Max. fuel amount (per firing instance) [kg]

8 9 12

14

20

Total weight [kg]

235

370

370

435

510

Material thickness (combustion chamber parts)
[kg/m3]

1,900

1,900

1,900

1,900

1,900

Temperature resistance [°C]

1,200

1,200

1,200

1,200

1,200

Average CO2 content [%]

6.2

6.9

6.9

7.1

7.2

Average exhaust temperature [°C]

160

205

213

210

227

Required discharge pressure [Pa]

4 4 4 4 4

Stack gas mass flow [g/s]

28.3

31.1

36.1

42.4

51.4

It is prohibited to use the following substances for combustion

 Moist wood
 Soft or resinous wood
 Bark and chipboard waste
 Painted and coated wood
 Woodchips, wood pellets
 Plastics, cardboard
 Kitchen and household waste
 Coal of any type
 Combustible liquids

ORTNER GmbH
Hürmer Straße 36 Tel.: [phone] / 27 07 [e-mail]

A-3382 Loosdorf/Melk Fax: [phone] / 27 08 www.ortner-cc.at Page 6 of 25

Design examples

ORTNER GmbH
Hürmer Straße 36 Tel.: [phone] / 27 07 [e-mail]

A-3382 Loosdorf/Melk Fax: [phone] / 27 08 www.ortner-cc.at Page 7 of 25

Foundation preparation

2.
Perform the excavation. Depending on the
building regulation, excavate your area down
to the frost line in order to achieve a stable
and frost-resistant foundation.

1.
Choose the desired size of your foundation
length x width

Minimum requirement:

 Model 1: 1.25 m x 1.25 m

 Model 2: 1.4 m x 1.4 m;
 Model 3: 1.5 m x 1.5 m;
 Model 4: 1.65 m x 1.65 m

Depending on the model size or the floor
covering, you can design the measurements
yourself; however, the minimum dimensions
must be adhered to.

Model 1 (1.25 m x 1.25 m)

Size of the desired floor space