Leading the way to clean, efficient and renewable heating comfort
EKO Line boilers provide a convenient, safe and environmentally friendly way to heat your home and domestic hot water with wood. EKO
boilers assure the independence and self-reliance that heating with wood provides.
Because the boilers use wood gasification combustion,
they give unusually high overall heating efficiency. They use substantially less wood than conventional boilers and outdoor water
stoves with no visible smoke when fully operating.
EKO boilers burn so clean, they are safer (virtually no risk of a chimney fire)
and result in cleaner air for everyone. They also help to substantially reduce greenhouse gas emissions. EKO Line boilers enable you
to increase the warm security of your home in a safe, environmentally responsible way.
Click on image to play video
Boiler construction - elements
- Sealed wood gasification chamber - used simultaneously as a loading chamber. When appropriate amount of primary air supplied by the
pressure fan is delivered, wood gas is generated
- Nozzle - made of refractory concrete, mixes wood gases with the secondary air and
a flammable mixture is produced that undergoes self-ignition at about 1000°F
- Exhaust reheat space - the main combustion chamber, where
temperature reaches about 2000°F serves as an ash pit
- Smoke tube heat exchanger - (flue gas to water) heats up the installation water
- Fan - linked to the microchip controller, monitoring the quality of the whole burning process
- Safe guard thermostat - each boiler
is equipped with an additional safe guard thermostat, which switches off the fan while the water gets up to 180°F
Boiler construction - materials
- Boiler body - boiler casing is made of welded metal sheets that are 6mm thick, whereas the remaining walls are 4mm thick.
- Heat exchanger
- smoke tube heat exchanger made of tube with dimensions 57 x 4mm
- Insulation - boiler thermal insulation is composed of glass wool
of Nobasil 20mm thick, while the i external casing consists of metal sheet panels 0.8mm thick (powder painted)
- Nozzle - ceramic element
made of refractory concrete (working temp. up to 2100° F)
- Chimney flap - made of high quality steel. Tight flap adhesion to the combustion
duct assures the burning chamber tightness
- Boiler regulator - placed on upper boiler cover. The regulator is fixed to the boiler cover
by stuck catch
- Chimney flue - made of 4mm steel tube
- Ash pit - steel bottom of the burning chamber, ceramic ash pit added (working
temp. 2100° F) and additionally covered by refractory concrete
- Boiler door - produced of high quality steel, insulated with Nobasil
thermal insulation and inside covered by refractory concrete layer.Also protected with heat-resisting fiberglass cord.
EKO-Line boilers may be used for heating any kind of building. They are mostly used in one-family houses, drying houses, workshops, halls, or greenhouses. However, boiler placement is not limited to these applications; the above are just examples of where EKO-Line boilers have worked with success.
Boiler output should be based on a building’s heat demand, calculated by a qualified central heating designer. To select the appropriate boiler, the a/m calculated value should be increased by 20%. If this calculation isn't performed, boiler sizing may be chosen using the heat factor in relation to m3 of building cubature. Heat factor values should be determined as 30-50 W/m3 depending on heat insulation.
Technical Data for EKO-Line Boilers
Parameters
Unit
EKO-Line 25
EKO-Line 40
EKO-Line 60
EKO-Line 80
Power range
kBtu
85
137
205
275
Weight
Lb
1280
1390
2070
2712
Height
A inch
51.5
59
60.5
60.5
Height of heating water exit
B inch
48.5
56
56.5
56.5
Height of heating water entry
C inch
8.3
6.0
7.9
7.9
Height of outlet valve
D inch
5.1
2.7
5.1
5.1
Height of chimney flue
E inch
37.4
50.0
45.7
45.7
Width including handle
F inch
24.8
24.8
30.3
30.3
Width including casing
G inch
23.6
23.6
29.1
29.1
Depth
H inch
41.1
41.1
53.5
Hot water exit
I inch
12.6
12.6
24.0
24.0
Diameter of chimney flue
J mm
7.8
7.8
8.2
8.2
Diameter of hot water exit
inch
2.0
2.0
2.5
2.5
Diameter of hot water entry
inch
2.0
2.0
2.5
2.5
Kind of connection
-
thread
thread
flange
flange
Diameter of drain valve
inch
0.5
0.5
0.5
0.5
Water capacity
Gal
20
25
47
54
Volume of loading chamber (gasification)
Gal
31
49
82
123
Power consumption
W
50
50
100
100
Moisture of wood:
- recommended
%
15 - 25
- acceptable
%
10 - 35
Maximum log diameter
inch
7
7
7
7
Maximum length of logs
inch
20
20
25
25
Average flue gas temperature
F
340
Max. w orking pressure
PSI
25
Required chimney draught
Pa
15 - 20
Voltage / frequency
V/Hz
120V/60Hz
EKO-Line boilers are equipped with RK 2001 R4E enabling:
- Interaction with circulating pump,
- Interaction with room temperature sensor, installed in the room and connected with the boiler regulator
by two-strand wireModulation of fan rotation,
- Boiler output adapting to actual weather conditions,
- Interaction with EUROSTER room
thermostat
1. Master switch
2. Boiler temperature indicator
3. Boiler fire-up mode indicator
4. Boiler overheating indicator
5. Room thermostat indicator
6. Boiler thermostat knob
7. Circulating pump indicator
8. Fuel shortage indicator
9. Room thermostat knob
Each boiler is able to work without room temperature sensor as well.
Basing information about boiler assembly
Boiler placing. Boiler can be placed in the heating room, basement, or in an outside wood storage building. There should be enough
space to accommodate fuel storage for the whole heating season.
Boiler start-up rules Each boiler should be connected to the heating
system of which the heating capacity equals that of the boiler output.
To protect the boiler against low-temperature corrosion the end-user should assure return temperature does
not reach lower than 120F.
It is possible by installing of four way mixing valve.
Boiler has to be connected to the chimney duct in the smallest distance possible.
Chimney duct should be insulated to prevent condensation
(low exhaust temperature).
The chimney should have the section and height assuring required chimney draught (see table).
Boiler
output
Chimney section
95k btu
8 inches
135k btu
8 inches
205k btu
8.25 inches
8.25 inches
275k btu