
All installations and services must be performed by qualified service personnel.
b.The bottom edge of the vent termination elbow must be installed at least
c.The horizontal distance between the inlet and exhaust terminations should be minimized, when possible, and should never exceed
d.The vent and intake systems should utilize the same numbers of elbows and approximately the same length of straight pipe to reach the outside termination.
Figure 3: Typical Relative Locations of Direct Vent Terminations When Sidewall Venting.
3.Exhaust Vent Terminal Location Clearance Requirements
a.The vent terminal shall be located at least
b.The vent terminal shall be at least
c.The vent terminal shall not be located:
•over public walkways or over an area where wetting of surfaces by condensate, or water vapor, could create a nuisance or hazard,
•near soffit vents, crawl space vents, or other areas where condensate or water vapor could create a nuisance, hazard, or cause property damage, and
•where wetting of components by condensate, or water vapor, could be detrimental to the operation of pressure regulators, relief valves, or any other equipment.
d.The vent terminal shall be installed a minimum of
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