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Rheem RTE 9 Review

Rheem RTE 9 Review

Rheem RTE 9 Pros and Cons

The Pros

The Rheem RTE 9 is an Electric tankless water heater that is capable of producing up to 3.0 Gallons per Minute which is great for point of use applications. This particular unit by Rheem is Energy Star Certified and comes standard with an On-Unit temperature control which is a great value.

The Cons

This tankless water heater is intended for point of use so the Rheem RTE 9 is not meant for supplying an entire home with continuous hot water. If you need a tankless water heater unit capable of that then I would recommend you look for something larger that will better suit your needs.


The majority of homeowners who have purchased the Rheem RTE 9 highly recommend it because of how quick and easy it is to install and how great the energy savings is on this unit. Based on all the feedback and reviews I have seen on the Rheem RTE 9, I would definitely recommend it to anyone needing a tankless water heater of this size.

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Rheem RTE 9 Review

About the Manufacturer

Rheem was a pioneer in the water heating industry due to their well liked product line and distribution network in throughout the United States. They are known for quality because they frequently test their products and get them certified and tested by third party companies. The Rheem RTE 9 is another example of a great product made by Rheem.


There are some really cool features to the Rheem RTE 9 like the rugged brass/copper heat exchanger and it's compact design allows you to install it almost anywhere. This affordable tankless water heater is Energy Star rated which will save you on your monthly energy bills while providing the point of use application that you need.

Here is a list of some additional features:

- Up to 3.0 Gallons per Minute

- Energy Star Certified

- LED light to indicate that it's active

- 10 year warranty on the heat exchanger and also a 1 year warranty on the parts

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Where to buy the Rheem RTE 9

You can purchase the Rheem RTE 9 at stores online or hardware stores. I have researched and found that not only this unit but most tankless water heaters are the most inexpensive on Amazon. And most of the time Amazon will give you an option to buy used so make sure and check with them first.

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