Fig. 27 | TWO PIPES SINGLE WALL |
a = total intake length = INTAKE | SEALED COMBUSTION OPERATION |
| |
b = total flue length = EXHAUST |
|
Fig. 28 | TWO PIPES SINGLE WALL |
ROOM AIR DEPENDENT OPERATION |
a = total intake length = 0
b = total flue length = EXHAUST
a = 0
29
