Fan heater, resistant to dust and water (IP66) axial fan, easy cleaning, dedicated for aggressive environments, hen houses, drying facilities, openable casing, epoxied three-row heat exchanger, 16-56 kW heating capacity, ABS plastic casing, air flow 4600 m³/h, fan power 360 W, weight 27.3 kg, 2 year WARRANTY
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Arvydas Palivonas

LT, RU, EN
+370 601 74426

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Andrius Lekarevičius

LT, RU, EN
+370 606 11865

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Click on the Model for technical data, dimensions, accessories
LEO AGRO - resistant to dust and water (IP66) axial fan, easy cleaning, dedicated for aggressive environments
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LEO AGRO HT5
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LEO AGRO HT3 INOX
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LEO AGRO HT5 INOX
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Model: LEO AGRO 56 SP
General data
Heating capacity at 90/70°C water and 0°C air temperature
kW
56,2
Heating capacity at 50/40°C water and 20°C air temperature
kW
15,9
Air flow range (measured horizontaly at 0.5 m/s speed limit)
m
28
Purpose
Heating for hen houses, drying facilities
Max. air flow
m³/h
4600
Fan data
Power supply
V/Hz
230/50
Max. current consumption
A
2,5
Max. power consumption
W
360
Fan type
Standard AC
IP / Insulation class
66 / F
Max. acoustic pressure level at a distance of 5 m from the unit, in the 1500 m³ room of medium capabillity of sound absorption
dB(A)
62
Fan rotation speed
rpm
1350
Installation data
Max. operating temperature
°C
60
Max. heating water temperature
°C
95
Max. operating pressure
MPa
1,6
Hydraulic connection
Ø "
¾
Other data
Heat exchanger
Epoxy coated, three-row
Casing
ABS plastic
Dimensions
Width
mm
690
Depth
mm
585
Height
mm
660
Weight
kg
27,3
Weight of unit filled with water
kg
31,0

Dimensions

Model: LEO AGRO 56 SP

Heating capacity tables

LEO AGRO 56 SP airflow on 5 speed = 4600 m³/h
Tp1
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 90/70°C
56,2
2480
21,0
34,0
52,0
2290
18,0
37,0
47,8
2110
16,0
40,0
43,8
1930
13,0
43,0
39,8
1750
11,0
46,0
35,9
1580
9,0
49,0
32,1
1420
9,0
51,5
28,4
1250
7,0
54,5
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 80/60°C
48,6
2140
16,0
29,5
44,5
1950
14,0
32,5
40,4
1780
12,0
35,5
36,4
1600
10,0
38,5
32,6
1430
10,0
41,0
28,7
1260
8,0
44,0
25,0
1100
7,0
47,0
21,3
940
5,0
49,5
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 70/50°C
41,0
1800
12,0
25,0
36,9
1620
10,0
28,0
33,0
1440
10,0
31,0
29,1
1270
8,0
33,5
25,3
1110
8,0
36,5
21,5
940
6,0
39,5
17,8
780
4,0
42,0
14,1
620
4,0
44,5
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 70/40°C
35,6
1040
7,0
21,5
31,5
920
5,0
24,5
27,5
800
4,0
27,5
23,6
690
4,0
30,0
19,7
570
3,0
33,0
15,8
460
3,0
35,5
11,9
350
3,0
38,0
7,6
220
4,0
40,0
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 60/40°C
33,4
1450
10,0
20,5
29,4
1280
8,0
23,0
25,5
1110
8,0
26,0
21,6
940
6,0
29,0
17,9
780
4,0
31,5
14,1
610
4,0
34,5
10,3
450
4,0
37,0
6,4
280
2,0
39,5
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 50/40°C
31,2
2710
26,0
19,0
27,2
2370
21,0
22,0
23,4
2030
16,0
24,5
19,6
1710
12,0
27,5
15,9
1380
10,0
30,5
12,3
1070
7,0
33,0
8,7
750
6,0
36,0
5,0
440
4,0
38,5
LEO AGRO 56 SP airflow on 4 speed = 4400 m³/h
Tp1
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 90/70°C
54,7
2410
20,0
34,5
50,5
2230
17,0
37,5
46,5
2050
15,0
40,5
42,6
1880
13,0
43,5
38,7
1710
11,0
46,5
35,0
1540
11,0
49,0
31,3
1380
9,0
52,0
27,6
1220
7,0
55,0
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 80/60°C
47,3
2080
16,0
30,0
43,3
1900
13,0
33,0
39,3
1730
11,0
36,0
35,5
1560
11,0
39,0
31,7
1390
9,0
42,0
28,0
1230
7,0
44,5
24,3
1070
7,0
47,0
20,7
910
5,0
50,0
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 70/50°C
39,9
1750
12,0
25,5
36,0
1570
10,0
28,5
32,1
1400
10,0
31,0
28,3
1240
8,0
34,0
24,6
1080
7,0
37,0
20,9
920
6,0
39,5
17,3
760
5,0
42,5
13,7
600
4,0
45,0
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 70/40°C
34,6
1010
7,0
22,0
30,7
890
5,0
25,0
26,8
780
5,0
27,5
23,0
670
4,0
30,5
19,2
560
3,0
33,0
15,4
450
3,0
36,0
11,6
340
3,0
38,0
7,4
220
4,0
40,5
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 60/40°C
32,5
1420
10,0
20,5
28,6
1250
8,0
23,5
24,8
1080
8,0
26,5
21,1
920
6,0
29,0
17,4
760
6,0
32,0
13,7
600
4,0
34,5
10,1
440
4,0
37,0
6,2
270
2,0
39,5
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 50/40°C
30,3
2640
24,0
19,5
26,5
2310
20,0
22,0
22,7
1980
15,0
25,0
19,1
1660
11,0
28,0
15,5
1350
9,0
30,5
11,9
1040
7,0
33,5
8,5
740
6,0
36,0
4,9
430
4,0
38,5
LEO AGRO 56 SP airflow on 3 speed = 4200 m³/h
Tp1
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 90/70°C
53,1
2340
19,0
35,5
49,1
2160
16,0
38,0
45,2
1990
14,0
41,0
41,4
1820
12,0
44,0
37,6
1660
10,0
47,0
34,0
1500
10,0
50,0
30,4
1340
8,0
52,5
26,8
1180
8,0
55,0
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 80/60°C
46,0
2020
15,0
30,5
42,1
1850
13,0
33,5
38,2
1680
11,0
36,5
34,5
1510
11,0
39,0
30,8
1350
9,0
42,0
27,2
1190
7,0
45,0
23,7
1040
7,0
47,5
20,2
890
5,0
50,0
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 70/50°C
38,8
1700
11,0
26,0
35,0
1530
11,0
28,5
31,2
1370
9,0
31,5
27,5
1200
7,0
34,5
23,9
1050
7,0
37,0
20,3
890
5,0
40,0
16,8
740
5,0
42,5
13,4
580
4,0
45,0
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 70/40°C
33,7
980
6,0
22,5
29,9
870
6,0
25,5
26,1
760
5,0
28,0
22,4
650
4,0
30,5
18,7
550
4,0
33,5
15,0
440
3,0
36,0
11,3
330
3,0
38,5
7,2
210
3,0
40,5
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 60/40°C
31,6
1380
9,0
21,0
27,8
1210
7,0
24,0
24,1
1050
7,0
26,5
20,5
890
6,0
29,5
16,9
740
5,0
32,0
13,4
580
4,0
35,0
9,8
430
4,0
37,5
6,1
260
2,0
39,5
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 50/40°C
29,5
2560
25,0
19,5
25,8
2240
19,0
22,5
22,1
1920
15,0
25,5
18,5
1610
11,0
28,0
15,0
1310
9,0
31,0
11,6
1010
7,0
33,5
8,2
720
5,0
36,0
4,8
420
4,0
0,4
LEO AGRO 56 SP airflow on 2 speed = 3900 m³/h
Tp1
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 90/70°C
50,7
2240
17,0
36,5
46,9
2070
15,0
39,0
43,2
1900
13,0
42,0
39,5
1740
11,0
45,0
35,9
1580
9,0
47,5
32,4
1430
9,0
50,5
29,0
1280
8,0
53,0
25,6
1030
6,0
55,5
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 80/60°C
43,9
1930
14,0
31,5
40,2
1760
12,0
34,5
36,5
1600
10,0
37,0
32,9
1450
10,0
40,0
29,4
1290
8,0
42,5
26,0
1140
6,0
45,5
22,6
990
6,0
48,0
19,3
850
5,0
50,5
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 70/50°C
37,1
1620
10,0
26,5
33,4
1460
10,0
29,5
29,8
1300
8,0
32,0
26,3
1150
7,0
35,0
22,8
1000
6,0
37,5
19,4
850
5,0
40,0
16,1
700
5,0
43,0
12,8
560
3,0
45,5
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 70/40°C
32,2
940
6,0
23,0
28,6
830
5,0
26,0
25,0
730
5,0
28,5
21,4
620
4,0
31,0
17,9
520
3,0
34,0
14,4
420
3,0
36,5
10,8
320
2,0
38,5
7,0
200
2,0
40,5
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 60/40°C
30,2
1320
9,0
21,5
26,6
1160
7,0
24,5
23,1
1010
7,0
27,0
19,6
850
5,0
30,0
16,2
710
5,0
32,5
12,8
560
4,0
35,0
9,4
410
3,0
37,5
5,8
250
2,0
40,0
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 50/40°C
28,1
2450
23,0
20,0
24,6
2140
18,0
23,0
21,1
1840
13,0
25,5
17,7
1540
12,0
28,5
14,4
1250
8,0
31,0
11,1
970
6,0
33,5
7,9
680
5,0
36,5
4,6
400
4,0
39,0
LEO AGRO 56 SP airflow on 1 speed = 3300 m³/h
Tp1
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 90/70°C
45,6
2010
14,0
38,5
42,1
1860
12,0
41,5
38,8
1710
11,0
44,0
35,5
1560
9,0
46,5
32,3
1420
9,0
49,5
29,1
1280
8,0
52,0
26,1
1150
6,0
54,5
23,0
1010
6,0
57,0
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 80/60°C
39,5
1740
11,0
33,5
36,1
1590
10,0
36,0
32,8
1440
10,0
39,0
29,6
1300
8,0
41,5
26,5
1160
7,0
44,0
23,3
1030
6,0
46,5
20,3
890
5,0
49,0
17,4
760
5,0
51,0
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 70/50°C
33,3
1460
10,0
28,0
30,1
1320
8,0
31,0
26,8
1170
7,0
33,5
23,6
1030
7,0
36,0
20,6
900
5,0
38,5
17,5
770
4,0
41,0
14,5
640
4,0
43,5
11,6
510
3,0
46,0
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 70/40°C
29,1
850
6,0
24,5
25,8
750
5,0
27,0
22,6
660
4,0
30,0
19,4
560
3,0
32,5
16,2
470
3,0
35,0
13,0
380
2,0
37,0
9,8
290
2,0
39,5
6,3
180
2,0
41,0
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 60/40°C
27,2
1190
7,0
23,0
24,0
1040
7,0
25,5
20,8
910
5,0
28,5
17,7
770
4,0
31,0
14,6
640
4,0
33,5
11,6
500
3,0
35,5
8,5
370
3,0
38,0
5,3
230
3,0
40,0
 
0
5
10
15
20
25
30
35
Tw1/Tw2 = 50/40°C
25,3
2200
19,0
21,5
22,1
1920
15,0
24,0
19,0
1650
11,0
26,5
15,9
1390
10,0
29,5
12,9
1130
8,0
32,0
10,0
870
5,0
34,5
7,1
620
4,0
36,5
4,2
360
3,0
39,0
  • PT - heating capacity
  • Tp1 - air temperature at the unit inlet
  • Tp2 - air temperature at the unit outlet
  • Tw1 - heating medium temperature at the heat exchanger inlet
  • Tw2 - heating medium temperature at the heat exchanger outlet
  • Qw - heating medium flow rate in heat exchanger
  • Δpw - heating medium pressure drop in heat exchanger

If you want to calculate heating capacity at different parameters you can do this at manufacturer website.

Name of chemical Concentration The effectiveness of protection
LEO AGRO CR LEO AGRO HP
Hydrogen sulphide 1 - 5 PPM Perfect  
Hydrochloric acid 5% Perfect
Hydrochloric acid 10% Perfect
Hydrochloric acid 20% Perfect
Hydrochloric acid 30% Good
Sulfuric acid 5% Perfect
Sulfuric acid 10% Perfect
Sulfuric acid 20% Perfect
Sulfuric acid 30% Good
Phosphoric acid 5% Perfect
Phosphoric acid 10% Perfect
Phosphoric acid 20% Perfect
Phosphoric acid 30% Perfect
Phosphoric acid 50% Perfect
Acetic acid 10% Good
Trichloroethylene   Good
Methanol   Good
Toluene   Good

LEO AGRO fan heaters are specially designed for aggressive conditions and well-suited for heating of large areas where dust, high humidity and chemicals based corrosive exposure is present, e.g. poultry, pig, cattle and stud farms, washing and drying sites, waste water treatment areas, etc. LEO AGRO heaters are non-inertial: high capacity enables fast and uniform heating of premises; safe and easy to clean. LEO AGRO fan heaters are manufactured of three different casings: 1) metal casing, 2) plastic casing and 3) openable casing.

LEO AGRO NEW fan heater1) LEO AGRO ST metal casing is made of zinc steel coated with anticorrosive layer, resistant to abrasion, heat, cold, corrosion and weather conditions. Specific heat exchanger is epoxy and special anticorrosive layer coated. Larger gaps between heating fins (4 mm) as well as thicker heating fins make easy cleaning of impurities with high pressure washing equipment. Washing process causes no deformation to heating fins, and drain plugs installed at the top and bottom of heater casing provide easy removal of water accumulated in the casing. LEO AGRO heaters are recommended to use in large areas of high ammonia concentration (up to 25 ppm), high air dust and humidity level: in chicken farms, sawmills, car wash sites, pools.

LEO AGRO CR fan heater2) LEO AGRO CR – plastic casing, heat exchanger is anticorosive layer coated. It has thicker heating fins with larger gaps between them (4 mm). Most suitable for high humidity and average pollution premises, such as: car washes, swimming pools, greenhouses. It can be washed with high pressure washing equipment.

LEO AGRO HP SP fan heater3) Key advantage of LEO AGRO SP and HP is easy-to-open casing which ensures easy access to heat exchanger for cleaning from both sides. Fan in LEO AGRO SP and HP models is located in the front part of the heater, and it directs heat from heat exchanger to the premises at the distance of 28 m.
SP model heat exchangers are epoxy coated; they are designed for aggressive environment such as poultry farms and drying sites. SP models as standard LEO AGRO ones can be applied in areas of high ammonia concentration (up to 25 ppm).
HP model heat exchangers are coated with several layers of special anticorrosive paint and are designed for heating of EXTREMELY severe areas: pig farms and waste water treatment areas. Heaters are resistant to major corrosive compounds; they also can be cleaned by pressurized air or flushed by high pressure washing equipment.

All LEO AGRO models are equipped with IP66 protection class fans with thickened plastic blades which are more wear-resistant. Fan design allows the increasing loads (e.g. exchanger contamination with dust) to effect its performance as less as possible.

The advantages of LEO AGRO fan heaters:

  • Heaters are developed and produced by company FLOWAIR. This company specializes in production of such type of heaters only and is the number one in a competitive Polish market!
  • Designed for aggressive environment, agriculture – high quality parts, resistance to chemical exposure, humidity, dust and corrosion.
  • IP66 fan. Such fans with thickened plastic blades are suitable in the areas full of dust or humidity.
  • Easy to clean – heater dismantling is not needed; it can be cleaned by pressurized air or water. Larger gaps between heat exchanger fins which are thickened to prevent deformation when cleaning.
  • Quality guarantee – European product with technical properties meeting the declared values, CE certified.
  • Easy to install. Light weight and specific mounting brackets make LEO AGRO fan heaters easy to install.
  • Extensive application: poultry, pig, cattle and stud farms, slaughterhouses, sawmills, car wash sites, greenhouses, pools, drying sites, waste water treatment areas and other facilities with potential air pollution and high humidity.
LEO AGRO ST water heater for aggressive environment
Manuals 1.2 MB
Declarations of conformity 341 KB
Brochures 22.4 MB
Presentation 10 MB
Catalogue 1.4 MB
AutoCAD drawings 259 KB
LEO AGRO SP/HP water heater for aggressive environment
Manuals 1 MB
Declarations of conformity 341 KB
Brochures 22.4 MB
Presentation 10 MB
Catalogue 1.4 MB
AutoCAD drawings 2.3 MB
LEO AGRO CR water heater for aggressive environment
Manuals 1.2 MB
Declarations of conformity 341 KB
Presentation 10 MB
LEO AGRO HT water heater for aggressive environment
Presentation 10 MB