Section 480.634 - Exemption of journeyman plumber for certain activities(1) A person who has a valid journeyman plumber license does not have to obtain a license under ORS 480.630 (2) to work as an employee of a business engaged in installing or replacing by nonwelded means a potable domestic water heater that: (a) Is not used for space heating;(b) Has a capacity that does not exceed 180 gallons;(c) Has a water temperature that does not exceed 210 degrees Fahrenheit;(d) Has a pressure that does not exceed 150 pounds per square inch gauge pressure; and(e) Has a heat input that does not exceed 750,000 Btu per hour.(2) Subsection (1) of this section does not allow construction, repair or alteration of the domestic potable water heater.1991 c.518 §15; 2005 c. 758, § 38