Robust furnace of type A

Bottom combustion furnace. 
Fuel – wood in pieces and sawdust as well as other wooden waste material.

standard version:

version with fuel feeder:

Air transport elements visible on the photos are not standard equipment of the furnace.

Characteristics

  • Bottom combustion chamber. Furnace chamber and burner are lined with a ceramic lining.
  • Fuel – wood in pieces and sawdust as well other waste material. Dust and really small sawdust is to be soaked to the humidity of approx. 30% and mixed with wood in pieces in the ratio 2 to 1.
  • Air for heating the room is taken from the hall's bottom part, pressed by a furnace exchanger and then distributed with air transporting channels – ITP.
  • There is a possibility to install the furnace within a set of dust collector filters and to heat up the air which returns to the hall.

Version of a Robust furnace of type A

The furnaces are manufactured in the following sizes: 50 kW, 100 kW, 150 kW, 200 kW, 250 kW, 350 kW, 500 kW and marked as furnaces of the following types:

A-51, A-101, A-151, A-201, A-251, A-351, A-501

Version furnace with fuel tank:

A-51Z, A-101Z, A-151Z, A-201Z, A-251Z, A-351Z, A-501Z

Advantages

  • Heat felt from the moment of furnace activation,
  • Great economy of heating costs in comparison with other solutions,
  • No central heating installation or losses in conveying of hot air,
  • Compact, module, modern construction,
  • Simple operation and high efficiency,
  • Long life cycle of the device,
  • No corroding factor within the exchanger and installation,
  • Chimney draught forced by the turbine allows for locating the furnace in any part of the hall without the need to build a high chimney,
  • In summer period the furnace may serve as an air-conditioner,
  • The furnace does not require a specialist room (boiler room),
  • No obligation of carrying out of specialist tests – UDT.

Operation

The furnace operation is fully automatic. It is limited only to the process of fuel loading. This operation is carried out manually but the device is constructed so that it could make use of the production waste material as the fuel (mixture of wet sawdust, wood in pieces, edgings or bark).

Structure of Robust furnace

Structure of Robust furnace

1 – nozzle, fuel loading
2 – fuel chamber
3 – washout hole
4 – original air inlet
5 – ceramic lining
6 – burner
7 – fire chamber
8 – secondary air inlet
9 – cyclone, ash pit
10, 11 – pipe exchanger
12 – smoke conduit

Technical data

Robust furnace
Type A-51 A-101 A-151 A-201 A-251 A-351 A-501
Device power KW 50 100 150 200 250 350 500
Maximum temperature of air supply* °C 90 90 90 90 90 90 90
Smoke conduit mm x mm 150 x 150 170 x 170 200 x 200 220 x 220 250 x 250 260 x 260 300 x 300
Chimney diameter mm 160 180 180 200 200 250 300
Capacity of the fuel chamber l 170 230 275 315 400 540 800
Capacity of the container of constant fuel (sawdust, wood chips, pellets) m3 2.65/5.30 2.65/5.30 2.65/5.30 2.65/5.30 2.65/5.30 2.65/5.30 2.65/5.30
Amount of heated air m3/h 3000 6000 8500 11000 12500 16500 23000
Diameter of pipes
transporting hot air
mm 2 × ∅280 2 × ∅300 2 × ∅350 2 × ∅350 2 × ∅400 2 × ∅500 2 × ∅600
Size width mm
height mm
depth mm
900
1800
2100
900
2000
2500
1220
2460
2750
1220
2460
2750
1370
2550
3120
1520
2550
3600
1680
2600
3800
Mass kg 1200 1740 2240 2720 3200 3450 4100
Sheet thickness mm 4-8 4-8 4-8 4-8 4-8 4-8 4-8
Motor of the combustion gas fan
Power KW 0.25 0.55 0.55 0.75 0.75 0.75 1
Supply voltage V 230 230 230 230 230 230 230
Motor of the main fan
Power** KW 3.0 4.5 5.5 5.5 7.5 7.5 10
Supply voltage V 400 400 400 400 400 400 400
Supply
Protection degree   IP 44 IP 44 IP 44 IP 44 IP 44 IP 44 IP 44
Supply system   TNC-S, 3X400 V, 50 Hz
Blower power   dependent upon distributing channels
Control   TNC-S, 230 V, 50 Hz

* The temperature of air supply depends on calorific value of fuel and applied heat exchanger. The table contains maximum temperature of air supply.
** Motor power depends upon the diameter and length of the air transporting channels. The table contains maximal motor power.

Device efficiency - size of surface to be heated

Robust furnace
Type A-51 A-101 A-151 A-201 A-251 A-351 A-501
Surface m2 300-400 550-700 800-1100 1100-1400 1300-1700 1700-2400 2500-3300
Cubature m3 1200 2200 3200 4200 5200 7000 10000
Energy requirement W/m3 50 50 50 50 50 50 50

Emission parameters

Combustion gas temperature 205 degrees C
CO2 content 6.5 %
O2 content 15.9 %
CO content 102 ppm
NOX content 34 ppm
effectiveness 90.5%
lambda 3.2

Fuel consumption

Estimated fuel consumption depends upon the following:

  • External temperature,
  • Thermal permeability of the building walls,
  • Frequency of gate opening,
  • Amount of air pumped out of the hall via pneumatic transport,
  • Fuel calorific value.

 

Warranty

  • We hereby grant a 5-year guarantee on subassemblies manufactured by our company.
  • The contractor undertakes to fulfil its obligations under the guarantee within:
    – 7 working days form the date it is confirmed (via electronic mail or fax) that the relevant spare part necessary to remove the defect is available on the territory of the Republic of Poland,
    – 14 working days form the date it is confirmed (via electronic mail or fax) that the relevant spare part necessary to remove the defect is available on the territory of the European Union,
    – 28 working days form the date it is confirmed (via electronic mail or fax) that the relevant spare part necessary to remove the defect is available outside the territory of the European Union.

Price list

In order to obtain information about the prices, please contact us at the following phone number:
+48 604 47 62 14

Upon a client's demand, we prepare a project design and a specification of the air distributing installation (ITP) against payment.

We provide assistance in the purchase of fittings (ITP) as well as in the installation assembly.