Free Flow models O and FF17

The Free Flow is a highly effective, reliable, safe and long-lasting heating device. The outward functional form of the Free Flow has remained unchanged for forty years now because it simply cannot be improved upon as a design for a pure hot air stove. Having originally been conceived as a stand-alone wood-fired heating device – and often used as the only heat source – one of the key qualities of the Free Flow hot air stove has always been the fast and even heating of rooms.

 

Free Flow models O

In addition to our current Free Flow FF17 range, we continue to offer our Bullerjan Free Flow models O at an extremely attractive price.

The Bullerjan® Free Flow O models are tested according to EN 13240. These stoves are equipped with an ash tray and an ash box. Apart from this, the design and the available equipment packages are identical to those of the current Free Flow series.

The striking and logical design of the Free Flow is so unique that it makes a positive statement in any surroundings. It is equally at home in the countryside, in town, or in the workshop. As such, the Free Flow also stands out for the way its appearance and operation can be adjusted. The combination of side-covers or storage ceramic, bases and handles allows you to design your Free Flow to best suit you and the space where you intend to install it. Different nominal heat output ratings allow it to be used not only in small but also in very large space.

 

Free Flow FF17

Lined with high-quality vermiculite and an improved combustion technology, the new Free Flow 2017 (FF17) meets all emissions requirements currently in force in Germany and Europe.

New: from the middle of March 2017, all Free Flow models are also available as a “Basic” version with all types. In this variant, the oven is supplied without thermal safety cover. When operated without cover, a distance to combustible materials of 70 cm must be observed only.

The Highlights

Main features and design
  • The epitome of a high-performance hot air/convection stove
  • Nominal heat outputs: 6.8 kW (Type 00), 10 kW (Type 01) and 14.2 kW (Type 02)
  • Very high efficiency factor of up to 81 per
  • Choice of various heat-protective covers mode of steel, stainless steel and glass
  • Hand-made Bavarian heat-storing ceramics in many colours available for type 00 and 01
  • Handle versions in wood or steel (chromed or brass-plated)
  • Different pedestals allow various designs and height settings
  • Height adjusters in the pedestals (with the exception of Carré) allow the stove to be levelled on uneven floors

 

Function and quality – Made in Germany
  • Extremely robust combustion chamber made of curved steel pipes
  • Fire box lined with high-quality vermiculite
  • Effective integrated window washing system
  • Intuitive control of the fire using a precisely coordinated inflow of air
  • Warranty extension (total 5 years) to the stove body on registering the product
  • Comprehensive service offering by the Bullerjan specialist dealers or Bullerjan customer service

 

ModellFree Flow FF17
Type 00
Free Flow FF17
Type 01
Free Flow FF17
Type 02
Performance6,8 kW10,0 kW14,2 kW
Depth62,4 cm72,1 cm88,2 cm
Width52,3 cm59,9 cm64,0 cm
Width for model Basic -
without cover
44,3 cm52,0 cm57,0 cm
Width with heat accumulators ceramic61,0 cm66,0 cmNot available for this type
Height63,8 cm66,9 cm80,0 cm
Weight for model Basic - without cover 83,2 kg 107 kg 140 kg
Weight incl. heat safety covers 90 kg 115 kg 150 kg
Weight with equipment ceramic 187 kgNot available for this type
Depth of combustion chamber37,5 cm47,5 cm57,5 cm
Exhaust gas nozzleØ 12 cmØ 12 cmØ 15 cm
Air supply nozzleØ 10 cmØ 10 cmØ 10 cm
Height centre exhaust gas nozzleca. 47,0ca. 51,0 cmca. 48,0 cm
Height centre air supply nozzleca 19,2 cmca. 34,2 cmca. cm
Exhaus gas mass flow rate (nominal heat output)9,7 g/s9,8 g/s11,0 g/s
Delivery pressure12 Pa12 Pa12 Pa
Mean exhaust gas temperature225 °C290 °C346 °C
CO content (13 % O2 )0,10 Vol.-%0,08 Vol.-%0,10 Vo.-%
CO content (13 % O2 )
1250 mg/m³1000 mg/m³1250,0 mg/m³
NOx (13 % O2 )126 mg/m³20 mg/m³ 95 mg/m³
Dust (13 % O2 )28 mg/m³20 mg/m³22 mg/m³
Efficiency 81 %80 %80 %
Distances to combustible
materials
BackFrom rear wall: 54 cm
From the pipe: 40 cm
Complete: 100 cm
From rear wall: 51 cm
From the pipe: 40 cm
Complete: 110 cm
From rear wall: 55 cm
From the pipe: 40 cm
Complete: 100 cm
Sides52 cm38 cm45 cm
Front100 cm110 cm100 cm
ModelO
Type 00
O
Type 01
O
Type 02
Nominal heat output (NWL)8,0 kW10,4 kW13,5 kW
Depth62,4 cm72,1 cm88,2 cm
Width52,3 cm59,9 cm64,0 cm
Width with heat accumulators ceramic61,0 cm66,0 cmNot available for this type
Height63,8 cm66,9 cm80,0 cm
Weight incl. heat safety covers 66 kg 87 kg 122 kg
Weight with equipment ceramic 138 kg 159 kgNot available for this type
Depth of combustion chamber40 cm40 cm40 cm
Exhaust gas nozzleØ 12 cmØ 12 cmØ 15 cm
Height centre exhaust gas nozzleca. 45,5ca. 50,5 cmca. 59,5 cm
Exhaus gas mass flow rate (nominal heat output)9,7 g/s9,8 g/s11,0 g/s
Delivery pressure12 Pa12 Pa12 Pa
Mean exhaust gas temperature308 °C370 °C308 °C
CO content (13 % O2 )0,15 Vol.-%0,17 Vol.-%0,23 Vol.-%
CO content (13 % O2 )
1875 mg/m³2092 mg/m³2875 mg/m³
Dust (13 % O2 )40 mg/m³36 mg/m³32 mg/m³
Efficiency 77 %74 %78 %
Distances to combustible
materials
Back650 mm850 mm850 mm
Sides400 mm400 mm400 mm
Front800 mm800 mm800 mm