CEILING
ROOF
ATTIC
CEILING
"TEE" BOX ASSEM.
CENTER LINE
OF ELBOW
MARK PLUMB LINE
WALL
WALL PASS-THROUGH CONNEC
18" MIN.
B. Wall Exit Into Metal Tee-Box
1. Mark the plumb line on the wall directly behind the center of the heater. (See Figure 6.)
NOTE:
When using 24# ga. minimum blue or black steel pipe, maintain 18" between pipe
and ceiling.
2. Place the vertical portion of the heater pipe and the elbow in position and project a
point onto the plumb line level with the center of the elbow.
Figure 5
Figure 6
