Rheem tankless Water Heater Reviews in 2022 – Top Picks

Do you want to know about the Rheem tankless Water Heater Reviews in 2022? While finding a new water heater, you may come across the famous water heater brand Rheem many times. This is because Rheem is associated with top-notch water heater companies that deliver exceptional products and excellent customer services. 

In addition, Rheem ranks on the top for all sorts of air and water appliances, and there is no compromise in its tankless water heaters. Therefore, Rheem is considered one of the most popular water heater brands that offer a whole range of tankless, electric, gas, indoor, and outdoor water heaters.

At a Glance:

If you are also hunting for the best tankless water heaters, I have put forward the five best Rheem tankless Water Heater Reviews in 2022. But first, let’s explore more about the Rheem company.

Our Recomendation for Top 5 Rheem tankless Water Heater Reviews

There is a list of the Top Rheem tankless Water Heater Reviews that is energy efficient and provide intense hot water.

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Rheem tankless water heater electric reviews
Budget Pick1. Rheem RTEX-18 Electric Tankless Water Heater
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Rheem 240V tankless water heater reviews
Staff Pick 2. Rheem RTEX-13 Residential Tankless Water Heater
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Rheem tankless water heater reviews gas
3. Rheem RTG-84XLN Water TANKLESS HEATER
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Rheem natural gas tankless water heater reviews
Best Pick4. Rheem RTG-84DVLN Tankless Water Heater
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Rheem propane tankless water heater reviews
 5. Rheem RTG-95XLP Tankless Gas Water Heater
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1. Rheem RTEX-18 Electric Tankless Water Heater

Budget Pick

Rheem tankless water heater electric reviews

Rheem RTEX-18 Electric Tankless Water Heater
Rheem RTEX-18 Electric Tankless Water Heater
Item Weight :‎14.8 pounds
Product Dimensions :‎18.25 x 3.5 x 14.5 inches
Voltage :‎240 Volts
Wattage :‎18000 watts
Water Consumption :‎7 Gallons

RTEX-18 is one of the ideal options from the professional classic series that delivers more capabilities.

RTEX-18 is one of the ideal options from the professional classic series that delivers more capabilities. This model can be used for a kitchen valve and single bathroom simultaneously. Its GPM is a bit higher than 4.4 and comes in a compact design that can be fit easily in small homes or flats. 

Nonetheless, if you seek to install an indoor electric heater, look no further than the RTEX-18 water heater. It is a trustworthy model with budget and energy efficiency that takes a few moments to install.

In addition to this, the RTEX-18 is the most appropriate model for cold weather. It has an unconventional self-regulation technology to modify the power amount, and it begins to use as per the set requirement. It means that there is no temperature variation according to the area or climate.

Flow Rate

This model can be used for a kitchen valve and single bathroom simultaneously. Its GPM is a bit higher than 4.4 and comes in a compact design that can be fit easily in small homes or flats. 

Installs Easily

Nonetheless, if you seek to install an indoor electric heater, look no further than the RTEX-18 water heater. It is a trustworthy model with budget and energy efficiency that takes a few moments to install.

Self Regulation Technology

In addition to this, the RTEX-18 is the most appropriate model for cold weather. It has an unconventional self-regulation technology to modify the power amount, and it begins to use as per the set requirement. It means that there is no temperature variation according to the area or climate.

Pros

  • Quick and easy installation process
  • Delivers hot water immediately
  • Easily replaceable threads
  • 4.4 GPM maximum flow rate

Cons

  • The wiring diagram in the manual is misleading

2. Rheem RTEX-13 Residential Tankless Water Heater

Staff Pick

Rheem 240V tankless water heater reviews

Rheem RTEX-13 Residential Tankless Water Heater
Rheem RTEX-13 Residential Tankless Water Heater
Item Weight :‎0.01 ounces
Product Dimensions :‎12.63 x 8.25 x 3.63 inches
Power Source :‎Corded Electric
Voltage :‎240 Volts
Wattage :‎13 KW

Rheem RTEX-13 Residential Tankless Water Heater is another ideal product by Rheem tankless Water Heater Reviews in 2022 that falls under a budget-friendly tankless water heater and is free from all additional charges. Above and beyond, it contains multiple features, such as the multiple-stranded wire connecting its power straightforwardly.

Further, its compact size can fit anywhere inside the home. Its wattage is 13,000 with a flow rate of 3.17 GPM, which makes it superlative for a small home or apartment- since it requires hot water for the single bathroom at a time.

Budget-Friendly 

RTEX-13 is another ideal product by Rheem that falls under a budget-friendly tankless water heater and is free from all additional charges. Above and beyond, it contains multiple features, such as the multiple-stranded wire connecting its power straightforwardly.

Flow Rate

Further, its compact size can fit anywhere inside the home. Its wattage is 13,000 with a flow rate of 3.17 GPM, which makes it superlative for a small home or apartment- since it requires hot water for the single bathroom at a time.

Pros

  • Compact size and slim design
  • Uninterrupted supply of heated water
  • Trouble-free installation
  • Saves energy

Cons

  • Parts Parts may leak

Professional Prestige Series

Other top-class water heaters come under the category of professional prestige series, which also contains all the features of the professional classic series. The gas heaters in this series hold a high-energy influence between 0.64 and 0.83. On the other hand, electric heaters embrace up to 0.93 for invincible competence. Most of the models in this series are energy-star valued that are suitable for tax credits.

3. Rheem RTG-84XLN Water TANKLESS HEATER

Rheem tankless water heater reviews gas

Rheem RTG-84XLN Water TANKLESS HEATER
Rheem RTG-84XLN Water TANKLESS HEATER
Item Weight :‎54 pounds
Product Dimensions :‎14 x 10 x 26 inches
Color :‎Gray
Power Source :‎Gas Powered
Voltage :‎120 Volts
Certification :‎ENERGY STAR

RTG-84XLN is another outclassed natural gas heater that powers the entire house. This tankless water heater is certified as an energy-star model along with 120 volts that can hold the water up to 8.4 gallons per minute. An outdoor model built with freeze protection to survive with the lowest temperature as -30°F.

For Whole House 

RTG-84XLN is another outclassed natural gas heater that powers the entire house. 

Energy Star Certified

This tankless water heater is certified as an energy-star model along with 120 volts that can hold the water up to 8.4 gallons per minute. 

Freeze Protection

An outdoor model built with freeze protection to survive with the lowest temperature as -30°F.

Pros

  • Offers high flow rate
  • Energy-efficient to save electricity
  • Compact design to save space
  • Next-generation burner technology included

Cons

  • Issues in temperature control

4. Rheem RTG-84DVLN Tankless Water Heater

Best Pick

Rheem natural gas tankless water heater reviews

Rheem RTG-84DVP Tankless Water Heater
Rheem RTG-84DVP Tankless Water Heater
Item Weight :‎54 pounds
Product Dimensions :‎14 x 10 x 26 inches
Power Source :‎Gas Powered
Voltage :‎120 Volts
Certification :‎Energy Star

RTG-84DVLN is a super-low NOx natural gas water heater that carries a high-competence element of 0.82 and a consumer all-copper heat conversion system; it can go a maximum of 35°F along with 8.4 GPM and 45°F with 6.7 GPM flow rate respectively. This model encompasses some outrun features, which are mentioned below:

Low NOx Emission

RTG-84DVLN is a super-low NOx natural gas water heater that carries a high-competence element of 0.82 and a consumer all-copper heat conversion system.

Flow Rate

it can go a maximum of 35°F along with 8.4 GPM and 45°F with 6.7 GPM flow rate respectively. This model encompasses some outrun features, which are mentioned below:

The Low-Flow Activation 

This feature provides the whole household water when there are fewer requirements.

Water-Saving Setting 

This enables you to save up to 1,100 gallons of water per year because it minimizes the water flow until it reaches the appropriate temperature.

Maintains Alerts

It provides you a notification when maintenance is required. This alert would advise getting a checkup every 20 days.

Pros

  • It features an industry-leading low flow activation rate of .26GPM
  • This burner complies with SCAQMD’s requirement for safety and low emissions
  • For use with three bathrooms or more
  • Units designed to save energy and space

Cons

  • A power surge can severely damage your unit

5. Rheem RTG-95XLP Tankless Gas Water Heater

Rheem propane tankless water heater reviews

Rheem RTG-95XLP Tankless Gas Water Heater
Rheem RTG-95XLP Tankless Gas Water Heater
Item Weight :‎57 pounds
Product Dimensions :‎13.88 x 8.88 x 23.68 inches
Power Source :‎Gas Powered
Voltage :‎120 Volts
Color :‎Gray

RTG-95XLP is the propane gas water heater, is a sturdy model that delivers a flow rate of 9.5 GPM to meet the requirements of bi households. Although it is an outdoor model, it is a low NOx that is eco-friendly under any weather condition.

Robust Model

RTG-95XLP is the propane gas water heater, a sturdy tankless water heater model.

Flow Rate

It delivers a flow rate of 9.5 GPM to meet the requirements of big households. Therefore, you are allowed to use three to four water appliances simultaneously without experiencing cold water. 

Eco Friendly

Although it is an outdoor model, it is a low NOx that is eco-friendly under any weather condition.

Pros

  • Continuous hot water heater with a mid-efficiency rating
  • Even in low demand times, hot water is obtained at the activation flow rate of .40 GPM
  • Eco-friendly tankless heater
  • Increased warranties

Cons

  • The warranty will not be valid without professional installation

About Rheem

In 1925, Richard and Donald, Rheem brothers, along with the third brother, William, started a Pacific Galvanizing Company with the co-partnership. This company primarily started to manufacture steel drums. However, with the firm’s expansion, they started producing steel drums and other metallic items with their own name. That’s how Rheem Manufacturing Company came into being.

Then, in the 1930s, the Rheem Manufacturing Company purchased another packaging company, Republic Steel Package Company, which directed the two brothers to manufacture their own heaters and boilers. Later a year, they started producing gas tank water heaters.

In the 1940s, the company entirely held consumer products and began to deliver commercial boilers. This development enabled the firm to launch new plants all across the US and other overseas countries. As a result, Rheem successfully held multiple manufacturing units in 19 different countries by the end of the 1960s.

Afterward, the Rheem company was divided into two divisions in the 1970s, including the air conditioning division and water heater divisions for HVAC. Since the water heater division became an entirely independent sector, it means the manufacturers are able to build premium-class water heaters with innovative technologies in the latest models.

Currently, Rheem is seen as the leading industrialist of tankless water heaters all over North America. 

Raheem Top most Tankless Water Series

A Rheem water heater comes at different prices that depend on the series of models. 

However, an average series is the Performance and Professional Classic Series that comprises the cheapest tankless water heaters. It means the water heaters within this series have the most basic design and performance. But they still carry the energy efficiency up to 99%. Its RTE and RTEX water heater models are covered under this series. Moreover, its latest models come with pioneering technologies which permit you to track the routine of your heater through your smartphone.

Then, there is a mediocre water heater category, Performance Plus Series, comprising both outdoor and indoor models. This series is slightly more expensive than conventional models, yet it features an all-copper heat conversion system to diminish transfer loss.

At last, the Performance Platinum and Professional Prestige Series comes, which is considered the most expensive category. However, it offers remarkable models with exceptional efficiency along with enhanced safety and smart controls.

Performance Series

The performance series water heaters hold more energy elements that fall between 0.91 and 0.93 for electric and 0.54 and 0.81 for gas heaters. As a result, both electric and gas water heaters need less maintenance as compared to the heaters by other manufacturers. However, these gas heaters operate calmly; thus it is ideal for indoor use.

Its wattage is 13,000, GPM is 3.17, and the RTEX-13 is best for small-family houses or studio apartments. However, after turning the heater on, you need to wait for at least 15 seconds and enjoy hot water.

Professional Classic Series

Another low-end Rheem water heater, professional classic series, holds some of the very affordable models, yet with first-class elements that are featured in all gas water heaters. You would buy any model from this category at tremendously low prices, yet with incredible energy efficiency.

Like the performance series, the professional classic series also holds 13,000 wattages, 3.17 GPM, and RTEX-13, perfect for single bathroom use. Similarly, you need to wait for 15 seconds to get hot water.


Where does Rheem come from?

Rheem is an Atlanta-based company with presently industrialized units for water heaters in Mexico, China, Alabama, and Australia.

Various Rheem water heater models

Rheem manufactures five sequences of electric and tankless gas heaters. Besides, it produces solar-powered heaters that contain both gas and electric standbys.

The Rheem tankless water heaters are an affordable and extensive lineup that produces both electric and gas units in various designs, sizes, and features as per the requirement. However, Rheem uses two broad categories of tankless water heaters:

Performance Line

This class contains tankless water heaters that are retailed online for home improvements. The units of its models are energy efficient and somehow identical to the professional line models. However, this type typically starts with RETEX and ECOH.

Professional Line

The models of this setup are only available through official Rheem dealers that deal as a package. This package includes retailing along with professional installation. Just like performance line models, it also features high unit efficiency, and this line generally starts with RTEX and RTGH.

Both performance and professional water heater lines comprise models that are very likely to each other. However, you can pick any option by deciding whether you want to pay high rates for professional installation by Rheem or prefer to get a first-rate model at competitive prices.

Reviews of Rheem water heaters

According to the customer reviews of Rheem water heaters, this company is ranked among the top brands. However, after a thorough investigation and analysis on several platforms where its products are retailed, such as Amazon_ the researchers have found several questions that are mentioned below:

How to Install Rheem Electric Water Heater?

In each Rheem product’s review, installation effortlessness is the common subject. Nevertheless, if you replace the conventional electric water heater with the Rheem electric water heater, you would find the installation process pretty quick and straightforward. Moreover, you would be able to execute this step by yourself.

How to Install Rheem Gas Water Heater?

As compared to the electric heaters, the Rheem gas water heaters are slightly complicated to install. For this process, you require a skilled plumber. Notwithstanding, the latest designs of Rheem gas water heaters are no further complex to install as compared to other brands.

What makes Rheem water heaters so special?

Although you may discover the prices of Rheem water heaters are pretty expensive, these are the most reliable and durable water heaters that make them worthwhile products. No matter what you are looking for, you would get numerous outstanding options, including top-featured with-tank and tankless water heaters, along with extended warranties. Moreover, Rheem tankless water heater ranks at the top in the market that strives its best to meet your requirements.

How to Maintain Rheem Tankless Water Heaters?

Some critics have highlighted that the Rheem tankless water heaters contain a more enduring lifespan than water heaters by other companies. Well, this statement is more precise for outdoor models because they can be seen as corrosion-free and protection insulated from the essentials.

However, in order to increase the lifespan, reduce frequent repairs, and avoid breakdowns, the Rheem water heaters need routine maintenance. Such as regular cleaning to eliminate periodic inspections and lime-scale. If you discover some issue in the operation of your water heater, you should call an expert.

How to Regulate the Temperature of Rheem Electric Water Heater?

The Rheem electric water heaters consist of a preset temperature of 120 degrees Fahrenheit, which is found precise by many people. However, some users may prefer to change this temperature. In that case, you can effortlessly do this. You can regulate its temperature from 90-150°F. However, several professionals do not recommend going above 120°F because it may maximize the burn risk.

With each Rheem water heater model, you would get easy temperature control so that you don’t need to open the whole system to reach the thermostat. Furthermore, since the thermostat is inbuilt on the outer side of the heater, you can set the temperature whenever you want.

Salient Features of Rheem Tankless Water Heater

You can also control the Rheem tankless water heater online through your smartphone using Wi-Fi, no matter whether you get the indoor or outdoor model. With each model, you will get the following features:

Multiple Units Linkage

Most of the Rheem gas water heaters can be installed in multiple units. They are compatible with units of up to 2, 6, or 20 units, yet depending upon the tool used for the connection. Most gas water heaters by top brands can be connected for high-volume requirements.

Wi-Fi Connection

These models come with inbuilt Wi-Fi features that can be connected through EcoNet Wireless Technology. This feature enables you to examine and control your heater using your smartphone and mobile application.

Rust-Resilient Model

All tankless Rheem water heater models are constructed using high-quality stainless steel that enhances their durability and prevents them from rusting or corrosion.

Gas Line Compatibility

The Rheem large gas models do not need any up-gradation with the ¾ inch pipe and ½ inch standard gas line. However, this friendliness keeps costs very low for installation.

Fewer Reductions

Rheem gas water heater meets the strict requirements of southern California SCAQMD and Low-NOx.

Rheem Water Heaters Customer Care and Warranty

In case you have any issue with your water heater warrantied years after purchasing the model, that problem would be taken under assurance, and you can access the Rheem customer care center. As Rheem is well-known for offering commendable customer service thus, you can feel free to contact me directly. Besides, Rheem is an enthusiastic brand that covers multiple warranties for the overall products and their several parts.

If you are looking for prompt solutions to your problems, you may find the answer about the water heater in its FAQ list or use live chat. If you want to use the live chat options, you can choose between the multiple options as per your requirements, such as for error codes or for usual information. In addition to this, you may call directly to the Rheem customer care center to get the solutions to the technical problems of your hot water heaters.

Talking about the warranty provided by Rheem for its water heaters, it varies from model to model:

Performance and Professional Classic Series is the most affordable series of water heaters by Rheem, covering the warranty for six years.

Performance Plus Series is a little pricier than the above one, but you would get more benefits. One of the gains is nine years of warranty. 

Performance Platinum and Professional Prestige Series is the highest-quality water heater, contains the most extended warranty of 12 years, and provides supreme execution.

Where can I buy Rheem tankless water heaters?

Rheem professional series models can be purchased only through the official retailers of Rheem dealers. Although this line is similar to the proficient series, it includes installation as well. Talking about the models mentioned above of Rheem tankless water heaters, you can find each model from our top-five series. Other than that, you can also buy the first-class Rheem water heaters from the official site of Amazon and get instant hot water with easy installation.

Rheem Tankless Water Heater Prices

Well, it is hard to provide a precise estimate about the prices of the overall models discussed above. Because the price depends upon the model category, installation type, and several other factors, it also relies upon what type of unit you have presently. It also depends upon whether you are installing a new water heater from scratch or replacing it with the old one. Typically, the products mentioned above range between $170 to $1950 and can store up to 1,100 gallons of water.

Frequently Asked Questions

Is Rheem water heater a good brand?

Rheem offers a wide range of options including water recirculation pumps, WiFi, low-NOx, and other features that are excellent. More importantly, you’re likely to find a model that perfectly matches your size requirements and meets your needs. All these qualities make Rheem the best brand when it comes to tankless water heaters. 

How long does a Rheem tankless water heater last?

The Rinnai error code 11 indicates a problem with your hot water system’s ignition or Gas supply. To fix the issue, try these steps: Keep an eye out for any noticeable damage or loose parts in your hot water system. Make sure your gas supply is on. 

What is code 11 on a Rheem tankless water heater?  

The Rinnai error code 11 indicates a problem with your hot water system’s ignition or Gas supply. To fix the issue, try these steps: Keep an eye out for any noticeable damage or loose parts in your hot water system. Make sure your gas supply is on. 

Conclusion

It is possible to obtain hot water on demand and quickly with the help of Rheem tankless Water Heater Reviews in 2022, while not having to store hot water or taking up extra room. Moreover, it uses sophisticated electronics, precise temperature control, and smart home integration technologies.

Recommendation

Depending on the performance and the affordable price. I would recommend Rheem RTEX-18 to enjoy endless hot water whenever you need it. If you have a large family and a good budget then Rheem RTG-84DVLN is the perfect choice to run multiple water applications without the fear of running out of hot water. 


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