SECTION 3: CLEARANCES TO COMBUSTIBLES

NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.

2.Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from where the burner and burner tube connect.

FIGURE 12: Venting

 

 

 

 

(inches)

 

 

(centimeters)

 

 

 

Model

A

E

F

A

E

F

A

E

BH-40

14

18

18

36

46

46

Unvented

Vent

BH-60

14

18

18

36

46

46

Radiant Tubes

Pipes

BH-80

20

24

18

51

61

46

 

 

 

BH-100

20

24

18

51

61

46

Vented

F

BH-115/125

20

24

18

51

61

46

 

 

 

BH-140/150

20

30

18

51

77

46

 

 

BH-175/200

20

30

18

51

77

46

9 of 59

Page 15
Image 15
Roberts Gorden BH-100, BH-60, BH-40, BH-150, BH-175, BH-115, BH-140, BH-200, BH-80, BH-125 Venting Inches, Centimeters Model