Determine boiler location, Installation & operation manual – Lochinvar KNIGHT XL 801 User Manual
Page 9

9
1
Determine boiler location
(continued)
ALCOVE INSTALLATION
OPEN
FRONT
1/4" (6 MM) MINIMUM CLEARANCE
AROUND HOT WATER PIPES 
1” (25 MM) MINIMUM CLEARANCE
AROUND VENT PIPE
18" (457 MM)
FRONT
0"
RIGHT
13" (330)
TOP
12"
(305 MM)
LEFT
14" (356 MM)
REAR
RECOMMENDED SERVICE CLEARANCES:
FRONT
- 30” (762 mm)
TOP
- 24” (610 mm)
LEFT SIDE - 24” (610 mm)
REAR 
- 24” (610 mm)
Figure 1-2 Alcove Installation - Minimum Required Clearances
CLOSET INSTALLATION
CLOSED DOOR
VENTILATING
AIR OPENING
*
*
*
AREA OF EACH OPENING:
 1 SQ. INCH PER 1000 BTU PER HOUR INPUT
 WITH A MINIMUM OF 100 SQ. INCHES.
1/4" (6 MM) MINIMUM CLEARANCE
AROUND HOT WATER PIPES 
1” (25 MM) MINIMUM CLEARANCE
AROUND VENT PIPE
6" (152 MM)
FRONT
6"
13"
TOP
0"
RIGHT
12"
(305 MM)
LEFT
14" (356 MM)
REAR
VENTILATING
AIR OPENING
RECOMMENDED SERVICE CLEARANCES:
FRONT
- 30” (762 mm)
TOP
- 24” (610 mm)
LEFT SIDE - 24” (610 mm)
REAR 
- 24” (610 mm)
Figure 1-1 Closet Installation - Minimum Required Clearances
ƽ WARNING
For closet installations, CPVC or 
stainless steel vent material MUST 
BE used in a closet structure due to 
elevated temperatures. Failure to 
follow this warning could result in 
fi re, personal injury, or death.
ƽ WARNING
For alcove installations, CPVC or 
stainless steel vent material MUST 
BE used in an alcove structure due 
to elevated temperatures. Failure to 
follow this warning could result in 
fi re, personal injury, or death.
Installation & Operation Manual
