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B. Wall Exit Into Metal Tee-Box
1. Mark plumb line on wall directly behind center of heater. (See Figure 11).
NOTE: When using 24# ga. minimum blue or black steel pipe, maintain 18" between
pipe and ceiling.
NOTE: Floor protector must be under horizontal pipe exit (See Figure 13. Page 19).
2. Place vertical portion of heater pipe and elbow in position and project a point onto
plumb line level with center of elbow.
Figure 11
ATTIC
CEILING
"TEE" BOX ASSEM.
CENTER LINE
OF ELBOW
MARK PLUMB LINE
WALL
WALL PASS-THROUGH CONNECTOR
18" MIN.
TEE BOX ASSEM.
CLEAN OUT ACCESS
FLOOR PROTECTOR
3 SHEET METAL SCREWS OR RIVETS
CEILING
ROOF
Figure 5
COLLAR
3 SHEET METAL SCREWS
Figure 10
COLLAR
3 SHEET METAL SCREWS
Page 15