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 | 14 | 18 | 18 | 36 | 46 | 46 | |
Unvented | Vent | 14 | 18 | 18 | 36 | 46 | 46 | |
Radiant Tubes | Pipes | 20 | 24 | 18 | 51 | 61 | 46 | |
| ||||||||
|
| 20 | 24 | 18 | 51 | 61 | 46 | |
Vented | F | 20 | 24 | 18 | 51 | 61 | 46 | |
| ||||||||
|
| 20 | 30 | 18 | 51 | 77 | 46 | |
|
| 20 | 30 | 18 | 51 | 77 | 46 |
8