Axial Fan Heaters

Axial Fan Heaters (Series AF-20) mount directly to square axial fans. The AF-20 heater housing uses the same mounting holes and functions as a guard for both heaters and fans. (Fans available separately.)

Axial Fan Heaters are available in several sizes with a broad range of wattages and custom features. They are ideal for drying, curing and warming applications typically found in film processing, lab, and medical instruments.

All Axial Fan Heaters are UL recognized components under UL file number E154979.

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Max Watt Max Inlet Max Exhaust Min SCFM Max SCFM
800 W 158 °F 290 °F 1 100

Applications:

  • Drying
  • Curing
  • Warming
fan size shape Wattage voltage
2.4 2.375" square 50 - 175W 12V, 20-60W
24V, 20-100W
48V, 20-100W
120V, 100-175W
240V, N/A
3.1 3.125" square 50 - 450W 120V, 100-450W
240V, 400-450W
4.7 4.6875" square 50 - 800W 120V, 50-800W
240V, 200-800W

Below are our thermostat and thermal fuse options. If a thermostat is specified, it must be used in conjunction with a thermal fuse for UL approved versions. Fuse setpoint is a minimum 25°C above thermostat setpoint or routine temperature spike.

Thermostat Overtempurature Cutout
X No Thermostat
1A 65°C (149°F)
1B 70°C (158°F)
1C 80°C (176°F)
1D 85°C (185°F)
1E 90°C (194°F)
1F 100°C (212°F)
1G 120°C (248°F)
1H 130°C (266°F)
1J 150°C (302°F)
Thermal Fuse Temperature
X No Fuse
A 72°C (161°F)
B 77°C (171°F)
C 84°C (183°F)
D 93°C (199°F)
F 104°C (219°F)
H 117°C (243°F)
K 128°C (262°F)
L 152°C (306°F)
M 184°C (363°F)
N 192°C (377°F)
R 229°C (444°F)

AF20-800-120-4.7 EBM PAPST 4606N (120V AC Fan & Heater)

        Heat Off Heat On
Power Fan Speed
(RPM)
Vel (meas)
FPM x 100
CFM Pr. Diff
in.H2O
Pr. Diff
in.H2O
Wall * 2895 13-15   0.175 0.185
100% 2820 13-15   0.170 0.185
98% 2855 10-12   0.175 0.180
96% 2850 10-12   0.175 0.180
94% 2780 9-11   0.165 0.170
92% 2730 9-11   0.160 0.160
90% 2615 9-11   0.145 0.155
88% 2220 8-10   0.110 0.115
86% <1300        

* Fan plugged directly into wall outlet
% Fan wired through a SR100 Power Controller

 

      Heat Off
Variac
Power
Fan Speed
RPM
CFM Pr. Diff.
in. H2O
120 2915 99.5 0.165
115 2870 98.1 0.160
110 2815 96.2 0.160
105 2720 92.9 0.145
100 2610 89.2 0.125
95 2475 84.5 0.115
90 2285 78.0 0.100
85 2020 69.0 0.080
80 1720 58.8 0.055
75 1470 50.2 0.040
70 1240 42.4 0.030
65 1090 37.1 0.020
60 945 32.3 0.150
55 800 27.3 0.010

 

      Heat On
Control
Device *
Fan Speed
RPM
CFM Pr. Diff.
in. H2O
SR100 2895 98.9 0.185
  2820 96.4 0.185
  2855 97.5 0.180
  2850 97.3 0.180
  2780 95.0 0.170
  2730 93.3 0.160
  2615 89.4 0.155
  2220 75.8 0.115
Variac 1960 66.9 0.085
  1690 57.7 0.065
  1430 48.8 0.050
  1190 40.7 0.040
  1070 36.5 0.030
  930 31.8 0.025
  795 27.1 0.020

* An SR100 power controller was used initially, but it would not control RPM below about 2200 RPM. A Variac was then used. It was good for all RPM.

Fan Only  
Flow
CFM
Press.
in. H2O
0.0 0.387
7.0 0.36
11.0 0.34
15.0 0.32
19.5 0.3
23.5 0.28
27.5 0.26
34.0 0.24
39.5 0.23
46.0 0.22
59.0 0.2
67.5 0.18
75.0 0.16
81.5 0.14
87.5 0.12
92.0 0.1
95.5 0.08
99.0 0.06
101.5 0.04
104.0 0.02
106.0 0

AF20-450-120-3.1 EBM PAPST 8506N (120V AC Fan & Heater)

        Heat Off Heat On
Power Fan Speed
(RPM)
Vel (meas)
FPM x 100
CFM Pr. Diff
in.H2O
Pr. Diff
in.H2O
Wall * 3310 12-14   0.195 0.200
100% 3303 12-14   0.195 0.200
98% 3300 12-14   0.195 0.200
96% 3298 12-14   0.195 0.200
94% 3274 12-14   0.190 0.200
92% 3222 12-14   0.185 0.195
90% 3204 12-14   0.180 0.190
89% 3040 12-14   0.170 0.170
<89% drops        

* Fan plugged directly into wall outlet
% Fan wired through a SR100 Power Controller

 

      Heat Off
Variac
Power
Fan Speed
RPM
CFM Pr. Diff.
in. H2O
120 3305 35.95 0.210
115 3297 35.87 0.210
110 3283 35.72 0.205
105 3268 35.55 0.205
100 3240 35.25 0.200
95 3215 34.98 0.200
90 3167 34.45 0.195
85 3100 33.72 0.185
80 3016 32.81 0.175
75 2880 31.33 0.160
70 2675 29.10 0.140
65 2122 23.08 0.090
60 1370 14.90 0.040

 

Fan Only  
Flow
CFM
Press.
in. H2O
0.0 0.279
3.6 0.26
6.0 0.24
8.0 0.22
9.6 0.2
11.3 0.18
13.2 0.16
15.5 0.14
17.9 0.12
22.0 0.1
26.8 0.08
30.0 0.06
32.2 0.04
34.2 0.02
35.9 0

AF-175-120-2.4 EBM PAPST 614NN (24V DC Fan, 120V Heater)

        Heat Off Heat On
Power
Volts *
Fan Speed
(RPM)
Velocity
FPM x 100
CFM Pr. Diff
in.H2O
Pr. Diff
in.H2O
28.5 6000 15-16   0.200 0.215
27.0 5955 12-14   0.190 0.200
24.0 5075 12-14   0.145 0.150
21.0 4490 12-14   0.110 0.130
18.0 3810 7-9   0.080 0.090
16.5 * 3450 7-9   0.070 0.070
15.0 * 3095 6-7   0.055 0.060

* Fan is rated for 18-24V DC

      Heat On
Variac
Power
Fan Speed
RPM
CFM Pr. Diff.
in. H2O
28.5 6000 0.215 0.215
27.0 5955 0.200 0.200
24.0 5075 0.150 0.150
21.0 4490 0.130 0.130
18.0 3810 0.090 0.090
16.5 * 3450 0.070 0.070
15.0 * 3095 0.060 0.060

 

Heat On  
CFM Pr. Diff.
in. H2O
0.0 0.000
27.1 0.020
31.8 0.025
36.5 0.030
40.7 0.040
48.8 0.050
57.7 0.065
66.9 0.085
75.8 0.115
89.4 0.155
93.3 0.160
95.0 0.170
97.3 0.180
97.5 0.180
96.4 0.185
98.9 0.185

 

Fan Only  
Flow
CFM
Press.
in. H2O
0.0 0.278
4.8 0.21
10.0 0.13
15.3 0.105
20.3 0.06
24.7 0

Build Your Own Build Your Own

The builder below will allow you to select options for a Cool Touch™ Heat Torch™. If you are uncertain if a Cool Touch Heat Torch is the right solution for your needs, please learn about our other product offerings on our Standard Air Heaters page.

MY BUILD#: AF-20-

Wattage

  • 15
  • 20
  • 50
  • 100
  • 150
  • 175
  • 200
  • 300
  • 400
  • 450
  • 500
  • 600
  • 700
  • 800
  • 900
  • 1000

Voltage

  • 12
  • 24
  • 48
  • 120
  • 240

Thermostat

  • none
  • 65°C
  • 70°C
  • 80°C
  • 85°C
  • 90°C
  • 100°C
  • 120°C
  • 130°C
  • 150°C
  • 160°C
  • 170°C

Fuse

  • none
  • 93°C
  • 104°C
  • 117°C
  • 128°C
  • 152°C
  • 184°C
  • 192°C
  • 229°C

Lead Length

  • 1"
  • 2"
  • 3"
  • 4"
  • 5"
  • 6"
  • 7"
  • 8"
  • 9"
  • 10"
  • 11"
  • 12"
  • 13"
  • 14"
  • 15"
  • 16"
  • 17"
  • 18"
  • 19"
  • 20"
  • 21"
  • 22"
  • 23"
  • 24"
  • 25"
  • 26"
  • 27"
  • 28"
  • 29"
  • 30"

Fan Size

  • 2 3/8"
  • 3 1/8"
  • 4 11/16"

Fan

  • FAN24
  • FAN311
  • FAN312
  • FAN471
  • FAN472

? Not sure if this is the right solution for you? Use our Determine Your Heater tool to see which heaters meet your needs.

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