Heavy Commercial for Hot Water of Steam

Specially designed for commercial use in heavy traffic areas. Unique one-piece heavy duty enclosure with polyurethane powder coated finish applied after fabrication. Easy installation - simply secure brackets to wall, run element and snap on enclosure

*Stocked in 2-3-4-5-6-7-8 foot lengths, both complete (with elements) and enclosure only (less element).


Table 1 - Heating Capacities, BTU per hr per lin. ft. 65 degrees entering air temperature I-B-R approved 

model

Nom. Tube Size

Fin
Dimensions
H X W

Thick-
ness

Fin
Spacing
Fins/Ft.

Dimension
'A'

Water
Rate
GPM

Hot Water Ratings
Average Water Temperature degrees F 

Slope-Top
ST 1200 -1A

3/4"
CPR.

2 1/2" X 3 1/4"
Alum. Natural Finish

.015

55

3 7/16"

4

1

150

160

170

180

190

200

210

220

230

240

580

680

770

870

960

1060

1160

1260

1350

1450

550

640

730

820

910

1000

1100

1190

1280

1370

Slope-Top
ST 1200 -S125

1 1/4"
IPS
Steel

3 1/4" X 3 1/4"
Painted

Steam BTU.
1010 sq ft/hr 4.2

.029

48

3 13/16"

4

1

500

580

670

760

850

940

1030

1110

1200

1290

470

550

630

720

800

890

970

1150

1140

1220

Slope-Top
ST 1200 -3A

1 1/4"
CPR.

3 X 3 1/4"
Alum. Natural Finish

Steam BTU.
1290 sq ft/hr 5.4

.020

54

3 11/16"

4

1

560

670

770

880

980

1090

1190

1300

1410

1510

530

630

730

830

930

1030

1130

1230

1330

1430
All the above I-B-R Ratings are based on active length, which is 3" less than total length, and includes a 15% addition for heating effect.
Ratings: Heating capacities are listed in Table 1 for two flow rates: 1 GPM and 4 GPM. The use of I-B-R Ratings at 4 GPM is limited to installations where the water flow rate through the baseboard unit is equal to or greater than 4 GPM. Where the water flow rate through the baseboard is not known, the I-B-R Ratings at the standard flow of 1 GPM must be used.

Note: If the calculated water flow rate through a baseboard unit in a completely designed hot water heating system is greater than the standard flow rate (1 GPM), the rating of that unit may be increased by multiplying the standard I-B-R Rating at 1 GPM by the factor shown for the calculated flow rate.

Table 2 - Factors for ratings at flow other than standard and pressure drop values

Rate of Flow GPM

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

6.0

Factor

1.000

1.016

1.028

1.038

1.045

1.051

1.057

1.062

1.067

1.074

Pressure Drop 3/4"
Tube Mill inches per ft.

47

96

157

230

320

420

525

650

775

1060

Pressure Drop 1 1/4" IPS Steel Pipe
Mill in. per ft.

3

7

12

17

24

32

41

51

62

88

Pressure Drop 1 1/4"
Tube Mill inches per ft.

6

12

20

28

39

50

63

77

93

124


Note: If the calculated water flow rate through a baseboard unit in a completely designed hot water heating system is greater than the standard flow rate (1 GPM), the rating of that unit may be increased by multiplying the standard I-B-R Rating at 1 GPM by the factor shown for the calculated flow rate.