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VEDA Multi-fuel Boilers

 

Boilers for domestic houses, industrial/commercial
With the Veda offers fuel flexibility for fuels that cannot be fired in other units. For example, firewood, straw, peat and oil wood pellets.  The Veda Boiler round shape, with circulating water around the heat exchanger and with the risk of corrosion is nil. There are no cold corners that can rust. The boiler is constructed form high grade Finnish steel using 5mm plate for convection surfaces.

To get an even burning in the combustion chamber with a larger fireplace a fan located on the bottom of the hatch. Inside the combustion chamber is an adjustable air distribution channel that provides both primary air and secondary air from the fan.

In burnt embers are left for several hours after completion of firing. The slumber glow with the combustion fan will easily reignite the boiler again.

 

Veda 35M and 50M

 

Veda 35M  and 50M Boilers, are a narrow and easily installed boilers with reversed combustion. The boiler is designed for heating against an accumulator tank with a volume of 1000 - 2000 l (1-2 m3). Because of the wide front door the boiler is easy to decarbonizes and maintain. The oval shape of the fireplace combined with a small water container makes it possible to reach the desired water temperature rapidly.

The boiler construction is simple and solid. The fan blows the combustion air through channels in the front door which preheats the air and cools the surface of the door. The combustion air is forced downwards through the ceramic grate and with some additional air inflow the best possible combustion is achieved. The gases then continue through the convection tubes and the temperature is reduced to approximately 200 °C.

Veda 35M

Veda 50M

 

Veda Boiler installed with Laddomat 21 Charging Unit

RELATED DOCUMENTS

Laddomat 21
 

Ceramic Grate

Blower Grate

Measurements 35-50kw

A 1050 mm
B 1270 mm
C 1100 mm
D 500 mm
E 680 mm
Width 690 mm
1 Fuel Door 10 Convection Tubes Heat Exchanger
2 Front Door 11 Return Connection 50mm
3 By-Pass Damper Control 11 Ceramic after burning channel
5 Riser connection 40mm 12 Ceramic grate
6 Expansion Connection 40mm 13 Release Connection 15mm
7 By-Pass pipe 14 Secondary air channel + damper
8 Soot Hatch 15 Combustion blower/fan with damper flap
  Water Volume 350 Litres   Weight 750kg
  Recommended Chimney Height 5-7 meters   Flue Diameter  175mm
 

Veda 70 and 70M

 

Veda 70 and 70M is a good central heating boiler for larger heat demands, from, domestic houses or industrial facilities. It is big and does not need to be filled up so often. The firewood can be up to 1 m long and the volume of the fire place is 560 liters. Due to the round shape of the fireplace the expansion does not strain the boiler construction and the flames propagate around in the whole fireplace. The front door is as big as the fireplace and this makes it easy to decarbonize and maintain the boiler.

The smaller hatch on the front door works as a filling gap, to prevent smoke from getting into the boiler room when more wood is added. The bypass plate is used when the fire is ignited or the front door is opened. The ceramic grate can resist a high temperature which promotes complete combustion and contributes to small amounts of emissions and residues. The tube package contains 13 tubes. We recommend an accumulator tank volume of about 3000 - 5000 l (3-5 m3).

Veda 70

Veda 70m
 

Measurements

 
A 1500 mm
B 1365 mm
C 1180 mm
D 570 mm
E 1150 mm
Width 1060 mm
Weight 750kg
1 Draught Door 11 Convection Tubes Heat Exchanger
2 Front Door 12 Return Connection 50mm
3 Front Door 13 Ceramic after burning channel
4 Connection for draught regulator 14 Arch-shaped Ceramic grate
5 Control for the by-pass plate 15 Release Connection 15mm
7 Riser connection 50mm 16 Secondary air channel + damper
8 Expansion connection 40mm 17 Flue Height 5-7 m
9 By-pass channel 18 Flue Diameter  250 -300mm
  Water Volume 100kw (450 litres)   Water Volume 150kw   (650 litres)
 
  Veda 70kw  with Blower grate
 

Veda Boiler installed with Laddomat 21 Charging Unit

RELATED DOCUMENTS

Laddomat 21
 

Veda 100 and 150

 

Veda 100 and 150 is a good central heating boiler for larger heat demands, from, domestic houses or industrial facilities. It is big and does not need to be filled up so often. The firewood can be up to 1.5 m long and the volume of the fire place is 760 liters in the 100kw and 1030 liters in the 150kw. Due to the round shape of the fireplace the expansion does not strain the boiler construction and the flames propagate around in the whole fireplace. The front door is as big as the fireplace and this makes it easy to decarbonize and maintain the boiler.

In the Veda 100 and 150kw different fuels can be used such as firewood, straw, paper wastes etc. A pellet or oil burner can also be adopted as a secondary fuel burner. We recommend an accumulator tank volume of about 3000 - 5000 litres (3-5 m3).

Veda 100kw and 150kw boilers, complete with pellet burner mounting plate
 
  100kw with blower grate
 

Measurements 100kw and 150kw

 
A 1950 mm A (150kw) 2235 mm
B 1365 mm B 1580 mm
C 1200 mm C 1360 mm
D 820 mm D 930 mm
E 1300 mm E 1500 mm
Width 1060 mm Width 1170 mm
Weight 850kg Weight 1100kg
1 Fan 220V Single Phase 9 By-pass channel
2 Air Distribution pipe with baffle 10 Soot hatch
3 Fuel Door 11 Return connection 50mm
4 Front Door 12 Release connection 15mm
5 Control for By-pass plate 13 Flue Height 7-8m
7 Riser connection 50mm 14 Flue Diameter 100kw - 250mm
8 Expansion Connection 40mm 15 Flue Diameter 150kw - 300mm
 

Installation

 

When installing the Veda boiler you should consider the following:

  • If possiable, rise the boiler 15-20cm from the floor.
  • Between the boiler and the accumulator tank a charge pump should be fitted i.e. Laddomat 21.
  • First time the boiler is started a lot of water will condense from the boiler so we recommend placing a bowl below the edge of the boiler.
 

The Boiler

 

When heating with a Veda boiler i.e. with firewood it is important to observe that the heat-transfer phase is different compared to for example heating with oil fuel, which has a consistent heating transfer and only one burning phase. Heating with biomass fuels it has two different phases, ignition and  burning phases. The difference in the efficiency is very pronounced. Therefore the use of an accumulator tank is recommended with the boiler so that it doesn’t over heat and to get the best efficiency from the two phases of burning.

Fuel

 
The Veda boilers are constructed to be heated with firewood, but it is also possible to use other kind of fuels such as wood chips and wood pellets, briquette and peat. If a secondary fuel is to be used it is necessary to make a special adaptor plate for the wood pellet/wood chip burner on one side of the boiler.
 

De-carbonizing

 
The boiler efficiency is directly proportional to the cleanness of the inner surface of the boiler tubes. It is therefore important to de-carbonize the boiler tubes, and this should be done with the special brush delivered with the boiler.
 
 
 
 
 
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