On Mon, 02 Nov 2009 14:28:53 -0800, Bob F wrote:

Jules wrote:

Ours currently vents outside at about 3' off the ground via a
90-degree elbow which keeps moisture out, although I think according
to building codes (we don't really have any where I am) it's supposed
to vent at roof height (which seems like common sense anyway - I'll
fix ours sometime)

That's certainly not true here in Seattle. There do have to be certain
clearances from openable windows, doors, or air intakes.

Yeah, I'm not surprised (I remember our home inspector did flag it when
we bought the place, too).

The other thing is that our furnace currently sources intake air from very
close to the exhaust outlet, which seems like a pretty bad idea to me. I'm
curious to know what codes in areas that have them say about that as
presumably there are recommended minimum distances (I can re-route one or
the other through the basement easily enough, but maybe I'm better off
taking the exhaust up to roof height and leaving the air intake at waist
height outside - then they have a reasonable separation but without any
basement changes). Reasonably quick/easy/cheap project, anyway...

Oh, ours is all on 2" pipe, just to add to comments for the OP.

cheers

Jules