F.N. Cuthbert - Berko, Marley, Qmark Electric Heaters, Unit Heaters, Shop and Garage Heaters, Baseboard Heaters, Portable Heaters, Bath Fans, Exhaust Fans, Ceiling Fans and Air Circulators - Reddy Gas Heaters
All Pro Propane Infrared Radiant HeatersF.N. Cuthbert - Berko, Marley, Qmark Electric Heaters, Unit Heaters, Shop and Garage Heaters, Baseboard Heaters, Portable Heaters, Bath Fans, Exhaust Fans, Ceiling Fans and Air CirculatorsF.N. Cuthbert - Berko, Marley, Qmark Electric Heaters, Unit Heaters, Shop and Garage Heaters, Baseboard Heaters, Portable Heaters, Bath Fans, Exhaust Fans, Ceiling Fans and Air CirculatorsF.N. Cuthbert - Berko, Marley, Qmark Electric Heaters, Unit Heaters, Shop and Garage Heaters, Baseboard Heaters, Portable Heaters, Bath Fans, Exhaust Fans, Ceiling Fans and Air CirculatorsF.N. Cuthbert - Berko, Marley, Qmark Electric Heaters, Unit Heaters, Shop and Garage Heaters, Baseboard Heaters, Portable Heaters, Bath Fans, Exhaust Fans, Ceiling Fans and Air CirculatorsF.N. Cuthbert - Berko, Marley, Qmark Electric Heaters, Unit Heaters, Shop and Garage Heaters, Baseboard Heaters, Portable Heaters, Bath Fans, Exhaust Fans, Ceiling Fans and Air Circulators

Berko / Qmark / Marley

ARCHITECTURAL SILL HEIGHT
CONVECTION HEATERS

Qmark, Berko, Marley Convection Heater

• Field Convertible 2,000 to 5,000 Watts
• Phosphatized Baked Enamel Finish
• Wall or Unit Mounted Thermostat
• Easy, Single-Person Installation
• Automatic Thermal Cutout
• Adjustable Air Flow Patterns

Qmark Convection Heater

SELECTION CHART

Please Contact Us For Price And Availability
CATALOG
NUMBER
LENGTH
"L"
WATTS
PER FT.
TOTAL
WATTS
AMPERAGE
120V
208V
240V
277V
347V
600V
02100
02125
02150
02188
02250
28"
100
125
150
188
250
200
250
300
376
500
1.7
2.1
2.5
3.1
4.2
1.0
1.2
1.4
1.8
2.4
0.8
1.0
1.3
1.6
2.1
-
0.9
1.1
1.4
1.8
-
-
-
-
1.4
-
-
-
-
-
03100
03125
03150
03188
03250
3'
100
125
150
188
250
300
375
450
564
750
2.5
3.1
3.8
4.7
6.3
1.4
1.8
2.2
2.7
3.6
1.3
1.6
1.9
2.4
3.1
1.1
1.4
1.6
2.0
2.7
-
1.1
1.3
1.6
2.2
-
-
-
-
-
04100
04125
04150
04188
04250
4'
100
125
150
188
250
400
500
600
752
1,000
3.3
4.2
5.0
6.3
8.3
1.9
2.4
2.9
3.6
4.8
1.7
2.1
2.5
3.1
4.2
1.4
1.8
2.2
2.7
3.6
1.2
1.4
1.7
2.2
2.9
-
-
-
1.3
1.7
05100
05125
05150
05188
05250
5'
100
125
150
188
250
500
625
750
940
1,250
4.2
5.2
6.3
7.8
10.4
2.4
3.0
3.6
4.5
6.0
2.1
2.6
3.1
3.9
5.2
1.8
2.3
2.7
3.4
4.5
1.4
1.8
2.2
2.7
3.6
0.8
1.0
1.3
1.6
2.1
06100
06125
06150
06188
06250
6'
100
125
150
188
250
600
750
900
1,128
1,500
5.0
6.3
7.5
9.4
12.5
2.9
3.6
4.3
5.4
7.2
2.5
3.1
3.8
4.7
6.3
2.2
2.7
3.2
4.1
5.4
1.7
2.2
2.6
3.3
4.3
1.0
1.3
1.5
1.9
2.5
07100
07125
07150
07188
07250
7'
100
125
150
188
250
700
875
1,050
1,315
1,750
-
-
-
-
-
3.4
4.2
5.0
6.3
8.4
2.9
3.6
4.4
5.5
7.3
2.5
3.2
3.8
4.7
6.3
2.0
2.5
3.0
3.8
5.0
1.2
1.5
1.8
2.2
2.9
08100
08125
08150
08188
08250
8'
100
125
150
188
250
800
1,000
1,200
1,504
2,000
-
-
-
-
-
3.8
4.8
5.8
7.2
9.6
3.3
4.2
5.0
6.3
8.3
2.9
3.6
4.3
5.4
7.2
2.3
2.9
3.5
4.3
5.6
1.3
1.7
2.0
2.5
3.3
09100
09125
09150
09188
09250
9'
100
125
150
188
250
900
1,125
1,350
1,690
2,250
-
-
-
-
-
4.3
5.4
6.5
8.1
10.8
3.8
4.7
5.6
7.0
9.4
3.2
4.1
4.9
6.1
8.1
2.6
3.2
3.9
4.9
6.5
1.5
1.9
2.3
2.8
3.8
10100
10125
10150
10188
10250
10'
100
125
150
188
250
1,000
1,250
1,500
1,880
2,500
-
-
-
-
-
4.8
6.0
7.2
9.0
12.0
4.2
5.2
6.3
7.8
10.4
3.6
4.5
5.4
6.8
9.0
2.9
3.6
4.3
5.4
7.2
1.7
2.1
2.5
3.1
4.2
SELECTION CHART
CATALOG
NUMBER
LENGTH
"L"
WATTS
PER FT.
TOTAL
WATTS
AMPERAGE
208V/1Ø
208V/3Ø
240V/1Ø
240V/3Ø
277V/1Ø
347V/1Ø
600V/1Ø
600V/3Ø
02375
02500
02600
02750*
28"
375
500
600
750
750
1,000
1,200
1,500
3.6
4.8
5.8
7.2
-
-
3.3
4.2
3.1
4.2
5.0
6.3
-
-
2.9
3.6
2.7
3.6
-
5.4
-
2.9
-
4.3
-
-
-
-
-
-
-
-
03375
03500
03600
03750*
3'
375
500
600
750
1,125
1,500
1,800
2,250
5.4
7.2
8.7
10.8
-
-
5.0
6.2
4.7
6.3
7.5
9.4
-
-
4.3
5.4
4.1
5.4
6.5
8.1
-
4.3
-
6.5
-
-
-
-
-
-
-
-
04375
04500
04600
04750*
4'
375
500
600
750
1,500
2,000
2,400
3,000
7.2
9.6
11.5
14.4
-
-
6.7
8.3
6.3
8.3
10.0
12.5
-
-
5.8
7.2
5.4
7.2
8.7
10.8
4.3
5.8
6.9
8.6
-
3.3
-
5.0
-
-
-
2.9
05375
05500
05600
05750*
5'
375
500
600
750
1,875
2,500
3,000
3,750
9.0
12.0
14.4
18.0
-
-
8.3
10.4
7.8
10.4
12.5
15.6
-
-
7.2
9.0
6.8
9.0
10.8
13.5
5.4
7.2
8.6
10.8
3.1
4.2
5.0
6.3
-
-
2.9
3.6
06375
06500
06600
06750*
6'
375
500
600
750
2,250
3,000
3,600
4,500
10.8
14.4
17.3
21.6
-
-
10.0
12.5
9.4
12.5
15.0
18.8
-
-
8.7
10.8
8.1
10.8
13.0
16.2
6.5
8.6
10.4
13.0
3.8
5.0
6.0
7.5
-
-
3.5
4.3
07375
07500
07600
07750*
7'
375
500
600
750
2,625
3,500
4,200
5,250
12.6
16.8
20.2
25.2
-
-
14.5
14.5
10.9
14.6
17.5
21.9
-
-
12.6
12.6
9.5
12.6
15.2
20.0
7.6
10.1
12.1
15.1
4.4
5.8
7.0
8.8
-
-
4.0
5.1
08375
08500
08600
08750*
8'
375
500
600
750
3,000
4,000
4,800
6,000
14.4
19.2
23.1
28.8
-
-
13.3
16.7
12.5
16.7
20.0
25.0
-
-
11.5
14.4
10.8
14.4
17.3
21.7
8.6
11.5
13.8
17.3
5.0
6.7
8.0
10.0
-
-
5.2
6.5
09375
09500
09600
09750*
9'
375
500
600
750
3,375
4,500
5,400
6,750
16.2
21.6
26.0
32.5
-
-
18.8
18.8
14.1
18.8
22.5
28.1
-
-
16.2
16.2
12.2
16.2
19.5
24.4
9.7
13.0
15.6
19.5
5.6
7.5
9.0
11.3
-
-
5.2
6.5
10375
10500
10600
10750*
10'
375
500
600
750
3,750
5,000
6,000
7,500
18.0
24.0
28.8
36.1
-
-
16.7
20.8
15.6
20.8
25.0
31.3
-
-
14.4
18.0
13.5
18.1
21.7
27.1
10.8
14.4
17.3
21.6
6.3
8.3
10.0
12.5
-
-
5.8
7.2
*Bottom Inlet Only.
OPTIONAL BUILT-IN CONTROLS

Please Contact Us For Price And Availability
SUFFIX
ADDITION TO
BASIC CAT. NO.
OPTIONAL
BUILT-IN
CONTROL
RATINGS
T
Single-Pole Thermostat
Rated 24 Amps @ 120-240 VAC and 22 Amps @ 277 VAC. Pilot Duty rating of 125 VA (All Voltages).
60-120 Degree F Temperature Range; Adjustable Through Outlet Grille — Tamper-Resistant.
Not Available On Three-Phase Heaters (See Note B.)
2T
Two-Pole Thermostat
Rated 24 Amps @ 120-240 VAC and 22 Amps @ 277 VAC. Pilot Duty Rating of 125 VA (All Voltages).
60-120 Degree F Temperature Range; Adjustable Through Outlet Grille — Tamper-Resistant.
Use 2ST On Three-Phase Heaters. (See Note B.)
DS
Disconnect Switch
Double-Pole, Rated 20 Amps @ 120-277 VAC.
Single-Phase Heaters Under 20A. (See Notes A & G.)
TR
Transformer Relay
Single-Pole, Low-Voltage Relay With Built-In Transformer
(24 VAC Control), Rated 25 Amps @ 120-240
VAC and 22 Amps @ 277 VAC. (See Note E.)
PR
Power Relay
Single-Pole Magnetic Relay, Rated 25 Amps @ 120-277
VAC. Specify Control Voltage and Source (Internal or
External). (See Notes E and F.)
2ST
Two-Stage Thermostat
Rated 25 Amps @ 120-240 VAC and 22 Amps @ 277
VAC. Pilot Duty Rating of 125 VA (All Voltages).
60-120 Degree F Temperature Range; Adjustable
Through Outlet Grille — Tamper-Resistant.
Available On Two or Three-Element Heaters Only.
PE
Pneumatic / Electric
Switch
Pressure Set-Point @ 10 PSIG Adjustable To 30 PSIG.
Can Be Set To "Make'' or "Break'' On Pressure
Drop. Rated 25 Amps @ 120-277 VAC. (See Note H.)
PDT
Single-Pole Pilot
Duty Thermostat
Same Control As T Option Except Pilot Duty. (See Note C)
2TPD
Two-Stage Pilot
Duty Thermostat
Same Control As 2T Option Except Pilot Duty. (See Notes C & D.)
M
Outlet Mesh
Priced Per Foot.
NOTES:
A. This Control Option Is Not Available On Single-Phase Heaters Over 20 Amps and Three-Phase Heaters Over 20 Amps.
B. This Control Option Is Not Available On Single-Phase Heaters Over 24 Amps (22 Amps On 277 VAC). In Combination With The Disconnect
Switch Option Use The 2ST Thermostat Option On Heaters Over 20 Amps.
C. A Second Transformer Relay Can Be Sequenced Off The First Transformer Relay In The Same Heater. Up To 30 Power Relays In Different
Heaters Can Be Controlled By One Single-Stage Pilot Duty Thermostat.
D. Up To 10 Power Relays In Different Heaters Can Be Controlled By Each Stage Of a Two-Stage Pilot Duty Thermostat.
E. Two Relays Are Required On Single-Phase Heaters Over Relay Rated Amps. Two Relays Are Available For Two-Stage On Two or Three-Element
Heaters Only. Transformer Relays Are Not Available On Three Phase Heaters.
F. Three Power Relays Are Available For Three-Stage On Three-Element Heaters Only.
G. For Three Phase Units Specify 2 Disconnect Switches.
H. Fits ASL5 Only. For ASL3, PE Will Be Installed In 4-1/2'' Section
TO DEVELOP A CATALOG NUMBER FOR A HEATER WITH BUILT-IN
CONTROLS, ADD THE APPROPRIATE LETTERS AS SUFFIX TO THE BASIC HEATER CATALOG NUMBER.

"Thermostats and other accessories sold separately, unless otherwise noted"

Please Contact Us For Price And Availability

Qmark Catalog

Can't Determine What You Need ? Ask Us !!

F.N. Cuthbert Inc.     3151 South Ave.     Toledo, OH 43609
800 - 472 - 3292     419 - 385 - 0881     Fax: 419 - 385 - 3716

E-Mail: sales@fncuthbert.com