(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:\n(a) Is not used for space heating;\n(b) Has a capacity that does not exceed 180 gallons;\n(c) Has a water temperature that does not exceed 210 degrees Fahrenheit;\n(d) Has a pressure that does not exceed 150 pounds per square inch gauge pressure; and\n(e) Has a heat input that does not exceed 750,000 Btu per hour.\n(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]
Oregon Legal Code