Can I tie a plumbing vent into a heater vent?

[RockinRobyn]

Hello,
I've searched the internet and found your blog so I thought I would ask the question here. Doing a remodel and wanted to double check to see if this was ok...
Can I tie a plumbing vent from a new bathroom into my heater vent to exit the house and vent out of the roof?
Thanks!

 

[Jadnashua]

No...exhaust vents from combustion devices cannot be combined with plumbing vents.