Originally Posted by
John Arnold
Yes. The 10 foot rule applies to the burner area and the draft hood. Same with a water heater - the furnace return cannot be within 10 feet of the water heater burner or draft hood.
OK, that makes sense, and would answer my question (that's why I was asking earlier if the distance should be measured from the draft hood).
Now, all I need is is code or commentary cite for that...