Space-Ray PGR 100-L5, Installation And Operation Instructions Manual, Page: 40 / 62

Form 43343120
July 2021
-39-
45. A minimum clearance of 6 inches must be maintained between the outside wall and vent cap (18 ”
clearance will provide stability under high wind conditions).
46. The horizontal venting system shall not terminate:
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Less than 4 ft. (1.2m) below, 4 ft. (1.2m) horizontally from or 1 ft. (30cm) above any door, operable
window or gravity air inlet into any building. The bottom of the vent terminal shall be located at least 7
ft. (2.1m) above grade or above snow accumulation level as determined by local codes.
•
Less than 3 ft. (0.9m) from a combustion air inlet.
•
Less than 3 ft. (0.9m) from any other building opening or any gas service regulator.
•
Less than 7 ft. (2.1m) above public walkways.
•
Directly over areas where condensate or vapor could create a nuisance or hazard or be harmful to the
operation of gas utility meters, regulators, relief valves, or other equipment. Building materials should
be protected from flue gases and condensate.
•
Less than 18” (0.45m) when directly below a combustible overhang.
47. In regions of the country where prevailing winds are consistently higher than 40 mph, it may be necessary to
terminate the vent system above the roof level.