Hot Water Tanks
RU199iN - RU Model Series
Super High Efficiency Plus Tankless Water Heater
Enjoy an endless supply of hot water with the Rinnai Super High Efficiency Plus condensing tankless water heater.
Only the size of a suitcase, the natural gas RU199iN model is compact, easy to install, and perfect for indoor locations.
ENERGY STAR Qualified with an Energy Factor of 0.96/Uniform Energy Factor of 0.93
15,000 BTU (Minimum)/ 199,000 BTU (Maximum)