Rinnai, a renowned manufacturer in this sector, has directed its innovative efforts towards its V75EN GPM outdoor Low NOx Tankless water heater. We have prepared the list of the Top 7 Rinnai Tankless Water Heater Reviews available in the market today. The heater is rated high by the commercial customers too. Performance – Conveniently Good. The company is known to employ at least six hundred engineers who are involved in the innovation and research steps. To enforce forward thinking is the company’s main motto. The water heaters we manufacture are tested and CSA certified to avoid a lackadaisical approach to our production system. If you value your home and having a working, dependable, trouble free, efficient, hot water heater DO NOT think of buying any Rinnai products. From a uniform energy factor (UEF) of .79 up to .95 to the ability to handle three or four fixtures at once, these units outperform most of the competition. Revolutionary New Water Heater Designs by Rinnai. Unlike the propane and gas water heaters, this is an outdoor mounted water heater which gives it an increased capacity of 6.6 gallons per minute. The Rinnai precisely engineered water tankless heaters can be counted upon to deliver a continuous supply of hot water whenever the need arises. These models can handle up to four fixtures at once and carry a UEF of .79 to .82. //