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The Rinnai SENSEI RXP199iN is a condensing tankless water heater rated at 199,000 Btu/hr and up to 11 gpm, with a 0.96 UEF and 98% efficiency. It runs on natural gas or propane after a conversion kit change, vents indoors or outdoors through Versa Vent, and is Wi-Fi capable for remote control. The compact wall unit suits whole-home use in cold climates and larger households that want endless hot water. Against non-condensing rivals it wastes less heat, but it needs a condensate drain and a 3x5 in vent, and it is louder than some premium models at 49 dB.
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Owners of the SENSEI RXP series report steady, endless hot water and lower gas use than their old tanks. Complaints center on installer-dependent setup, condensate and venting requirements, and noise near living areas.
The Rinnai SENSEI RXP199iN is a condensing tankless water heater from the RXP Series. It heats water on demand and is about the size of a small suitcase. It mounts on a wall.
It runs on natural gas or liquid propane and can be converted from one to the other. The Versa Vent allows either indoor or outdoor installation with a simple adaptation. It uses a direct electronic ignition system.
It is rated at 199,000 Btu/hr with an 11 gpm flow rate and a 96% UEF. It is Wi-Fi capable and has ultra low-NOx emissions.
