12
10' (3 m)
OR LESS
10' (3 m)
OR LESS
2' (61 cm)
MINIMUM
10' (3 m)
OR LESS
2' (61 cm)
MINIMUM
2' (61 cm)
MINIMUM
10' (3 m)
OR LESS
2' (61 cm)
MINIMUM
3' (91 cm)
MINIMUM
3' (91 cm)
MINIMUM
3' (91 cm)
MINIMUM
3' (91 cm)
MINIMUM
9" (22.9 cm)
MINIMUM
9" (22.9 cm)
MINIMUM
9" (22.9 cm)
MINIMUM
9" (22.9 cm)
MINIMUM
** *** 6" (15.2 cm) MINIMUM
** ***12" (30.5 cm) MINIMUM
1' (30.5 cm)
ABOVE GRADE
OR NORMAL
SNOW LINE
1' (30.5 cm)
ABOVE GRADE
OR NORMAL
SNOW LINE
1' (30.5 cm)
ABOVE GRADE
OR NORMAL
SNOW LINE
1' (30.5 cm)
OR NORMAL
SNOW LINE
* 7' (2.1 m) ABOVE PUBLIC WALKWAYS
* 3' (91 cm) MIN. ABOVE AIR INTAKES WITH 10' (3 m) RADIUS
* 7' (2.1 m) ABOVE PUBLIC WALKWAYS
* 3' (91 cm) MIN. ABOVE AIR INTAKES WITH 10' (3 m) RADIUS
* 7' (2.1 m) ABOVE PUBLIC WALKWAYS
* 3' (91 cm) MIN. ABOVE AIR INTAKES WITH 10' (3 m) RADIUS
* 7' (2.1 m) ABOVE PUBLIC WALKWAYS
* 3' (91 cm) MIN. ABOVE AIR INTAKES WITH 10' (3 m) RADIUS
** *** 6" (15.2 cm) MINIMUM
** *** 6" (15.2 cm) MINIMUM
* USE VERTICAL VENT PIPE TO MEET MINIMUM HEIGHT REQUIREMENTS
** MUST BE 4' (1.2 m) AWAY FROM ANY WINDOW, DOOR, OR GRAVITY AIR INLET
*** RECOMMENDED SERVICE CLEARANCES IS 24" (61 cm) FROM THE FRONT OF THE HEATER TO A WALL;
18" (45.7 cm) FROM THE WATER SIDE TO A WALL
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Figure 24. Indoor Clearances
APPROVED
UNCONTROLLED DOCUMENT IF PRINTED