Originally Posted by
Wayne Carlisle
And as Rick stated:
2. A mechanical draft venting system, excluding
direct-vent appliances, shall terminate at least 4 feet
(1219 mm) below, 4 feet (1219 mm) horizontally from,
or 1 foot (305 mm) above any door, operable window, or
gravity air inlet into any building. The bottom of the vent
terminal shall be located at least 12 inches (305 mm)
above grade.
I wanted to clear this statement up. Rick did not state it was a mechanical draft venting system. He mentioned the 4 feet horizontally and this was the section in the code that mentioned 4 feet.
Pools and spa heaters are regulated by manufactuers recommendations.