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New condensing tankless water heaters feature recirculation technology save users time, money and natural resources. The RUR98i and RUR98e are newest additions to the Ultra Series condensing tankless water heater family. Come with integrated pump, internal bypass line and thermal bypass valve, and work with dedicated return line or cross over valve. Premium MC-195T digital controller schedules multiple recirculation events to align with usage patterns. New mid-level BTU condensing tankless water heaters, RUC90i and RU90e, also released.