Current through Register Vol. 55, No. 1, January 4, 2025
Section 3a.170 - Swimming pool heaters(a) A swimming pool heater is an instantaneous water heater. The heater must meet the construction requirements of ASME Code, section IV and the control requirements of ASME/CSD1 except if exempt under § 3a.3(d) (relating to scope).(b) A pool heater may be piped with polyvinyl chloride material rated for the pressure and temperature of the heater after the isolation valves.(c) Inspection of swimming pool heaters shall be performed in accordance with § 3a.111(4) (relating to field inspections).