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The Rinnai SENSEI RXP199iN is a condensing tankless water heater with a 199,000 BTU maximum input and up to 11.1 GPM of hot water. It runs on natural gas or propane, installs indoors or outdoors with the Versa-Vent accessory, and carries a 0.98 Uniform Energy Factor. It suits larger homes with several bathrooms or high simultaneous demand. Against non-condensing rivals it wastes less heat up the flue, and its 15,000 BTU minimum lets it modulate down for small draws. Owners of the SENSEI line praise steady temperature and quiet operation, while some report Wi-Fi setup friction and the cost of venting and installation.
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SENSEI RX owners generally report steady hot water and quiet running, and many cite the long warranty as a reason to buy. Complaints center on app and Wi-Fi setup and on the extra cost of venting and installation.
The Rinnai SENSEI RXP199iN is a condensing tankless water heater for residential use. It heats water only when needed, so hot water is available on demand. The unit is compact, about the size of a small suitcase.
It runs on either natural gas or propane and uses direct electronic ignition. It can be installed indoors or outdoors, with the Versa-Vent accessory. It has a uniform energy factor of 0.98 and is ENERGY STAR certified for residential use.
The heater can be cascaded with other units and set up with a recirculation system. It is also Wi-Fi capable.
