Riley Heating Plumbing And Air completed installation of this Rheem Ikonic 199K BTU Ultra tankless water heater with 98% efficiency condensing technology. We re-routed existing water lines, installed isolation valves for factory service, and properly sized pressure relief valve with drain line. New PVC venting was installed to exterior location with sealed penetration, altitude adjustments were made, and condensate disposal was routed to approved location. Your complete solution in a single visit.