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Rheem RTE 13 Review

Rheem RTE 13 Review

Rheem RTE 13 Pros and Cons

The Pros

The Rheem RTE 13 is an Electric tankless water heater that is capable of producing up to 4.4 Gallons per minute and is best used for point of use applications. The Rheem RTE 13 is Energy Star Certified and is capable of fitting almost anywhere which is a great plus.

The Cons

While the Rheem RTE 13 produces up to 4.4 GPM, it is not ideal for mid-sized or larger homes. It may not provide enough continuous hot water for your home. If you have many fixtures in your home or have high hot water usage, I would recommend looking into getting a larger unit.


The Rheem RTE 13 is compact, energy efficient and easy to install. For a point of use tankless water heater it is also very affordable. It comes standard with a rugged brass/copper heat exchanger which will really help with it's overall life expectancy. If you need a point of use tankless water heater, this is a great one to choose.

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Rheem RTE 13 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 13 is another example of a great product made by Rheem.


There are some really great features and benefits to the Rheem RTE 13 including the on-unit temperature control as well as the LED light that indicates when the tankless water heater is active. This simple to install unit compact and will literally fit anywhere you need which makes it an awesome value.

Here is a list of some additional features:

- Up to 4.4 Gallons per Minute

- Energy Star Certification

- 10 year warranty on heat exchanger and 1 year warranty on parts

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Where to buy the Rheem RTE 13

You are able to purchase the Rheem RTE 13 at different hardware stores or places online. I found that Amazon typically has the lowest prices for most tankless water heaters. Being that Amazon also provides an option to purchase used units, I would check with them first before you buy.

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