Rheem IKONIC SR Series condensing tankless with recirculating pump

The Rheem IKONIC SR Series is the recirculation version of Rheem's IKONIC condensing tankless line. Rheem publishes 0.96 UEF with ENERGY STAR qualification and a built-in recirculation pump with Wi-Fi, so the unit can keep a recirculation loop warm without a separately mounted pump. The published model is CRTGH-SR84i at 8.4 GPM, with 8, 10 and 11 GPM selections shown across the range.

The published installation feature set matches the rest of the IKONIC line: PVC vent runs up to 70 feet in 2 inch pipe or 150 feet in 3 inch pipe, flex venting through existing B-vent up to 50 feet, 1/2 inch gas line compatibility subject to local code, field gas convertibility from natural gas to LP with the conversion kit included, and approval for manufactured-home (mobile home) installations. The unit is listed as LowNOx with stainless-steel primary and secondary heat exchangers, a full-text digital display with no dip-switches, and Rheem's Hot-start Programming to avoid cold-water bursts between back-to-back uses.

WaterHeating.ca records the efficiency as the published UEF and does not convert it to a legacy EF. A built-in recirculation pump makes hot water quicker at the tap, not instant, and recirculation adds gas use, so the loop and its control are part of the design. Tankless sizing depends on the incoming water temperature, the temperature rise and simultaneous fixture demand. Whether CANRO supplies a specific IKONIC SR model and performs a gas tank-to-tankless conversion is confirmed at consultation.