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The Rinnai SENSEI RXP is a condensing tankless water heater rated at 199,000 BTU/h, with a built-in recirculation pump and Wi-Fi control through the Rinnai app. The pump enables on-demand recirculation, so hot water reaches fixtures faster than with a plain tankless unit. It runs on natural gas or propane (conversion kit needed for propane) and vents with PVC. It suits larger homes with high simultaneous hot-water demand, and it competes with high-capacity condensing tankless models from Navien and Noritz that also offer recirculation.
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Owners generally praise the strong hot-water output and the recirculation pump's faster delivery. Complaints center on app connectivity, pump noise and the cost and complexity of installation.
The Rinnai SENSEI RXP Series is a 199 MBH indoor condensing tankless water heater that runs on natural gas or propane. It has a built-in Smart-Circ intelligent recirculation pump. The unit detects the gas type automatically.
Smart-Circ learns your water usage patterns and provides hot water according to your schedule. The recirculation pump is a 4-speed DC pump with 4 speed settings. Bluetooth Smart Connect is included.
The heater is rated up to 0.98 UEF and is ENERGY STAR 5.0. It can be vented up to 75 ft using 2" venting.
