Rinnai Tankless Installation L2 Part 1 – Implementation & Validation (Webinar) When 08/20/2020 3:30 pm - 5:30 pm Add To Calendar Download ICS Google Calendar iCalendar Office 365 Outlook Live Event Type Events and Trainings Rinnai, Tankless Part 2, Implementation and Validation is recommended for production plumbers who only physically install and validate the operation of water heaters.