Water heater flue

IS THIS CURVE IN THE WATER HEATER FLUE CONSIDERED TO BE RESTRICTIVE?

http://www.nachi.org/forum/attachment.php?attachmentid=27929&stc=1&d=1239341625

I would say no.

Manufacturer’s installation instructions call for a minimum 6" verticle rise from the draft hood before an elbo.

See page 10:

http://www.americanwaterheater.com/support/manuals/res-gas.pdf

Carefull Larry or the new spelling police will be writing you a ticket.:shock:

And BTW-yes they do.

Yes, well…sory fur thuh airwhores.

Good info Larry.

How about the downward slope of the vent?

That vent would be a red flag on my inspection.

The installer of this vent used to design roller coasters.

Thank you very much, that helps.