Natural gas hot water heater vent pipe pitch

[wstowell (William Stowell)]

I called this out. Natural gas vent pipe appears to pitch down as it enters the chimney. Am I being too picky?

[bcawhern1 (Brian Cawhern, CMI)]

Good call.

[ccurrins (Christopher Currins, CMI)]

No you’re not. It’s a negative slope.

[jjonas (Jeffrey Jonas)]

Also… “generally speaking”… natural draft venting should have a 12 inch vertical rise before the first elbow.
https://inspectapedia.com/plumbing/Gas-Water-Heater-Venting-Codes.php#ManufactCode

Given all the repairs to the chimney from prior vents, I think it’s time to go power assisted out the sidewall!

[lkage (Larry Kage, CMI)]

@wstowell

I called this out. Natural gas vent pipe appears to pitch down as it enters the chimney. Am I being too picky.?

No, you did well to call that out, William.

[lkage (Larry Kage, CMI)]

@wstowell

Natural gas vent pipe appears to pitch down as it enters the chimney.

William, I carried a magnetic torpedo level with me. The are small and inexpensive.

You can see them here.

You may enjoy having one with you.