Height of furnace vent above grade

[mathew stouffer]

This is an exhaust vent for a high efficiency furnace. As a rule of thumb is there a min height requirement above grade in areas with heavy snow fall. This was 14 inches on the northwest side of the home.

[Raymond Wand]

If memory serves me correctly I think the minimum is 18". However it is easy enough to add an extension, should that not be high enough if there is drifting snow.

And they should not discharge over sidewalks where the condensate dripping can freeze.

[H.G. Watson, Sr.]

This is a duplicate post. See other with more responses at (clickable link): http://www.inspectionnews.net/home_inspection/heating-ventilation-air-conditioning-hvac-home-inspection-commercial-inspection/27604-height-furnace-vent-above-grade.html