Sterling QVSD - Manual (Page 14)

14
INSTALLATION (Continued)
Vent Systems
Termination Clearance Requirements
Structure/Object
Minimum Clearance
for Termination Locations
USA CANADA
Door, window, or gravity vent
inlet; combustion air inlet for
other appliances 9 inches for 10,000
to 50,000 BTU/Hr
input; 12 inches for
input exceeding
50,000 BTU/Hr. 9 inches (230mm)
for 10,000 to
50,000 BTU/Hr
input; 12 inches
(305mm) for input
exceeding 50,000
BTU/Hr.
Forced air inlet within 10 feet 3 feet above 6 feet (1.8m)
Adjoining Building or parapet 10 feet 10 feet (3.04m)
Adjacent public walkways
7 feet above
grade 7 feet (2.1m) above
grade
Electric, gas meters
& regulators
4 feet horizontal
3 feet (0.9m)
horizontally from
meter/regulator
asembly. 6 feet
(1.8m), any
direction, from
a gas service
regulator vent
outlet
Above grade level* 1 feet 1 feet (0.3m)
*Minimum above maximum snow depth, or per local code, whichever is
greater.
Figure 8. Vertical Intake/Vent Installation
CAT-2764C