Boilers

For a number of years boiler manufacturers have been wrestling with a problem how to extend the combustion time of a loading in a boiler. It was impossible to build in large loading chambers in all of the direct, lower combustion and wood gasification boilers because during combustion all fuel loading would take fire and boiler power would go out of control. There were also attempts to limit the air intake amount to the boiler, this way decreasing combustion intensity. However, such power reduction method with the whole loading burning and a limited air intake amount gave disappointing results as that large amount of fuel under combustion would start fuming and the boiler would suffer from weepage, tar and smudge, also combustion quality would go down along with efficient use rate. Boiler manufacturers also tried to expand the loading chamber capacity as much as possible, yet they were still relatively small and combustion in boilers would be short. To make it more comfortable to the customers, accumulator tanks were built next to boilers. Accumulator tanks built next to a much more powerful and expensive boiler take lots of space. As a result, the boiler room must be very large, its equipment and mounting would become very costly.

The appearance of upper combustion boilers represented a crucial breakthrough in boiler production. This operating principle means combustion of fuel from the top and in a thin layer, while other boilers use the entire combustion chamber. Boilers of this kind use a telescopic air intake method thanks to which the process of fuel combustion throughout the entire combustion course is controlled.

Boiler “Liepsnelė” is made according a license granted by the inventor and meets all standards and requirements. The advantages of boiler “Liepsnelė”:

-  a long combustion time of a loading (up to 30 hours by firewood, and up to 168 hours by coal)

-  very compact (takes up to 1m² in a boiler room)

-  a high efficient use rate which is up to 91%

-  easy mounting and problem-free maintenance

-  minimal automation

-  appealing design

-  low price

 

Boilers “Liepsnelė” come into two types (firewood and universal) and in three power classes: 10kW, 20kW and 40kW. Boilers “Liepsnelė” can be used to heat dwellings, production premises and other premises whose heated area ranges from 50m² to 400m².

Boiler “Liepsnelė” along with a low price will offer you warmth, comfort and fuel savings.

TECHNICAL SPECIFICATIONS

BOILER MODEL L-10 L-20 L-40 L-10u L-20u L-40u
Power (kW) 10 kW 20kW 40kW 10kW 20kW 40kW
Heated area (m²) 50-100 80-200 180-400 50-100 80-200 180-400
Fuel capacity (m³) 0,16 0,19 0,31 0,14 0,17 0,28
Holds Coal (kg)       70 125 210
Holds Firewood (kg) 25 48 75 25 48 75
Recommended log length (cm) 35-45 35-45 45-55 35-45 35-45 45-55
The amount of water in the boiler (l) 30 35 45 30 35 45
Duration of combustion of one load of firewood (h) min-max 6-31 6-31 6-31 6-31 6-31 6-31
Duration of combustion of one load of coal (days) min-max       3-7 3-7 3-7
Efficiency coefficient, to (%) 91 91 91 91 91 91
Maximum water pressure in the boiler (bar) 2 2 2 2 2 2
Pressure Protection valve (bar) 1,5 1,5 1,5 1,5 1,5 1,5
Maximum flow of the heated water (l/val) 250 600 1000 250 600 1000
Water temperature in the boiler (Cº) 70 70 70 80 80 80
Dimmensions of the fuel loading hole
(mm)
260x220 260x220 280x240 260x220 260x220 280x240
Coupling of the supply water 1 1/4“ 1 1/4“ 1 1/4“ 1 1/4“ 1 1/4“ 1 1/4“
Coupling of the return water 1 1/4“ 1 1/4“ 1 1/4“ 1 1/4“ 1 1/4“ 1 1/4“
Distance from the bottom of the boiler to the fuel (mm) 1280 1500 1500 1280 1500 1500
Diameter of the flue (mm) 160 180 180 160 180 180
Minimum width of diameter of the flue outler (cm²) 0,025 0,025 0,029 0,025 0,025 0,029
Dimensions (mm)
Height
Diameter
1700
560
1900
560
1900
680
1700
560
1900
560
1900
680
Boiler weight (kg) 164 198 264 183 222 300

 

BOILER CONSTRUCTION

1. Thermal traction controller.

2. Cable lifting system.

3. Air damper with air injection fan.

4. Traction controller stem (rod).

5. Coupling for heated water.

6. The air heating chamber.

7. Smoke exhaust outlet.

8. Lift cable for air supply distributor.

9. Barrage (wood fire/coal) shift handle, installed behind the air intake tube

10. Fuel loading doors.

11. Air distributor.

12. Fuel.

13. Ash removal door.

14. Coupling for the safety valve.

15. Coupling for return water.

16. Air intake tube (telescopic).

17. When installing the boiler, poured concrete floor.

18. Concrete or other heat-resistant.