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Rinnai RL75IN Review


Rinnai RL75IN Review

Rinnai RL75IN Pros and Cons

The Pros

The Rinnai RL75IN is an Indoor Natural Gas tankless water heater that is capable of producing up to 7.5 Gallons per Minute which is ideal for mid-sized homes. This particular model by Rinnai is Energy Star Certified which will help you save on your energy bills.

The Cons

Even though the Rinnai RL75IN is perfect for mid-sized homes, it may not provide enough continuous hot water for larger homes or mid-sized homes with many plumbing fixtures. Depending on your hot water usage, you may have to upgrade to a larger model.


The Rinnai RL75IN has many great reviews from homeowners who have purchased the tankless water heater. This unit is very affordable and very energy efficient making it a great value. I would recommend the Rinnai RL75IN to anyone with a mid-sized home.

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Rinnai RL75IN Review

About the Manufacturer

Rinnai has been around since the 1920's. A key to their success is to constantly improve and being more innovative each day. Their success is also driven by their customer service support staff being readily available to assist with any questions you may have. The Rinnai RL75IN is just another example of great technology that Rinnai provides.


There are some really great features and benefits to the Rinnai RL75IN including the standard issued MC-91-1US Digital Controller with Error Code Indicator which will save you money from having to buy separately. The Rinnai RL75IN is simple to install and easy to maintain.

- Up to 7.5 Gallons per Minute

- 180,000 BTU

- 82% Thermal Efficiency

- 12 Year warranty on heat exchanger, 5 year warranty on parts and 1 year warranty on labor.

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Where to buy the Rinnai RL75IN

The Rinnai RL75IN can be purchased at different retailers or stores online. I have found that Amazon typically has the lowest prices and ability to to buy used in some cases. I would definitely recommend checking it out before you buy at another store.

Click Here to check prices on Amazon.