Figure 22 The vent termination must be located to meet all requirements below (also applies to vertical vent terminations). The minimum distance
from adjacent public walkways, adjacent buildings, openable windows and building in the National Fuel Gas Code, ANSI Z223.1/NFPA
54 - latest edition. The vent termination clearances below are for U.S.A. Consideration should be given to avoid possible damage
caused by vent plumes and condensate when choosing a venting conguration and location. Maintain a minimum clearance of 4
ft. (1.22m) horizontally from, and in no case above or below, unless a 4 ft. (1.22m) horizontal distance is maintained, from electrical
meters, gas meters, regulators, and relief equipment.
Part number 550-142-950/0122
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wall mount gas-fired water boiler – boiler manual
8 Vent termination requirements
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