Rinnai Commercial Technical Training: Rack Systems/Demand Duo (Webinar) When 02/16/2022 1:00 pm - 5:00 pm Add To Calendar Download ICS Google Calendar iCalendar Office 365 Outlook Live Event Type Events and Trainings Boilers, Rinnai Join the Rinnai Training & Service Teams as we discuss key installation & service best practices for Rinnai Commercial Applications including Rack Systems and Demand Duo Hybrid products.