6 Best Rheem Water Heaters in 2021 – Reviews and Buyer’s Guide

Rheem RTG-84XLN-1 offers a high water flow rate with 8.4 gallons per minute (GPM). This is sufficient to deliver hot water in multiple sinks and shower simultaneously. With freeze protection rate up to -30 degrees, this model is an excellent water heater for outdoor use. 

Performance

While there are certain similarities between RTG-84XLN-1 and other Rheem models, their significant difference lies in the pump emissions. The RTG-84XLN-1 is a super-efficient methane unit that comes with a unique ‘low NOx’ function. This feature eliminates the need for complex venting systems.

However, this system needs to be installed outside the house. If you install it in an enclosed space, the trapped air can cause the fumes to build up, which can pose a great risk to health.

Heat Output and Flow

Rheem RTG-84XLN-1 can deliver a maximum flow rate of 8.4 GPM. However, the exact flow rate will highly depend on how cold the incoming water is. With this system, you can adjust the temperature with a remote controller to get the hot water as you desire.

Easy Installation

It is always better to have a trained technician to install water heaters at your home, especially when switching from a traditional tank to keep the warranty intact.

However, if you insist on installing the system by yourself, the steps are extremely simple. Rheem has also included a detailed instruction manual that guides you through the entire installation process.

Here are a few supplies you need to grab before you start installing the system:

• Ground lines
• High altitude chip
• Circuit breakers
• Pressure relief valve
• Weather-proofing materials

Rheem RTGH-95DVL is a tankless water heater that is capable of delivering hot water in multiple kitchens and bathrooms simultaneously. It uses condensing technology, which makes it the most efficient whole-house water heating system at up to .93 UEF. 

Advanced Technology

This tankless water heater by Rheem features hot-start programming that helps to reduce fluctuation in water temperature. This unit also has an Overheat Film Wrap (OFW) to protect the breaching of the heat exchanger.

If one tankless water heater is not sufficient for your household, the EZ-Link Cable technology allows you to connect two systems to operate as one. In addition, this unit is a low NOx model, which significantly reduces harmful emissions.

Venting and Self-Diagnostic

System Most water heaters require outdoor space for venting. However, the venting of Rheem RTGH-95DVL can be installed both indoors as well as outdoors as per your preference.

Additionally, this system is equipped with a self-diagnostic system that constantly checks the heater’s functions. In case the system finds any issues within the unit, the system will automatically warn you. Therefore, this additional feature adds to the safety of the water heater by preventing accidents.

High Flow Rate

One outstanding feature of all the Rheem water heaters is its high flow rate. This water heater delivers up to 9.5 gallons of water, which is more than enough to heat three full-flow showers at once. With such a flow rate, this water heater will guarantee that you never run out of hot water, even if you have three or more bathrooms at your home.

Energy-Efficient

Rheem RTGH-95DVLN is an efficient water heating system that is approved by Energy Star. With a 0.94 energy factor, this water heater by Rheem is energy-efficient and helps to reduce the utility costs. Additionally, Rheem RTGH-95DVLN is a condensing unit that extracts heat from exhaust gases, making this model more energy-efficient compared to non-condensing systems.

Rheem RTEX-24 is capable of delivering a continuous supply of hot water for both single point of use and even for multiple applications. With a sleek design and high efficiency, this unit provides top-notch performances, even for multi-user households.

Unlimited Hot Water Supply

Rheem RTEX-24 is a super-efficient water heater that is capable of delivering an unlimited supply of hot water at your home. It is equipped with self-modulating technology that ensures you get the water with the right temperature. Also, you can manually adjust the temperature according to the number of outlets at your home. Consequently, the system is ideal for both small as well as large households.

Easy Installation

Installing a water heating system can get complicated at times. However, you no longer have to worry about that with Rheem RTEX-24. Although it may take a little time to install this system, the entire installation process is extremely easy. All you have to do is follow the step-by-step installation manual that comes with the unit. However, you may require a few tools and materials to install the system.

Space Saving

Another advantage of investing in Rheem RTEX-24 is its size. The compact design of this water heating system makes it a perfect match for homes with space issues. With a stylish and sleek design, this water heater can virtually be installed anywhere and requires a small space.

Heat Output and Flow

Rheem RTEX-24 is equipped with thermostatic controls with an LED display. This advanced technology observes the flow of the water and temperature to determine the necessary amount of heat to deliver the required output. Also, the high-tech mechanism of RTEX-24 does not allow the temperature to change, even when the flow of water changes. Along with that, this model offers a flow rate of up to 5.9 gallons per minute.

Quality

Just like other Rheem water heaters, RTEX-24 is built using high-quality materials. It is constructed with a sturdy copper immersion heating element that can serve for a long time without any damage or corrosion. On top of that, the manufacturer provides a 5-years warranty on this product to ensure reliability and durability.

Saves Money

Compared to other Rheem water heating systems, this system offers great value for money. It is relatively cheaper and performs for an extended period of time. Also, you can save the entire installation cost as you do not need a technician to install the system.

Rheem RTEX-13 is equipped with adjustable thermostat control that adjusts water temperature as per your need. This model does not have a built-in tank, which means you no longer have to worry about water leakages and bursts. Additionally, this unit is 99.8% energy-efficient.

Energy-Efficient

Rheem RTEX-13 is an energy-efficient water heating system that is capable of saving up to 99.8% energy. So, with this system, you can cut down your daily energy consumption and save on utility bills.

On-Demand Hot Water

This is an on-demand water heater that is directly connected to your mainline and heats water only when you need it. This means you no longer have to worry about leakage and water bursts like conventional tank water heaters. Also, as this system only operates when you need it, it is a much safer option and saves a lot of money by consuming less energy.

Easy Installation

At times, installing a water heater by yourself can be troublesome. However, with Rheem RTEX-13, you don’t have to worry about the installation process. The installation is extremely easy, and it comes with all the necessary tools and equipment required to install the system. The manufacturers also provide the installation manual to guide you through the installation.

Lightweight and Compact

This tankless water heater is compact and lightweight. Weighing only 4 pounds, this unit is easily movable from one place to another, making it ideal for people who tend to move frequently. Also, the compact size of this unit saves a lot of home space. Therefore, this system is ideal for smaller homes and apartments.

Rheem RTEX-18 is an efficient indoor inline water heater that delivers instant and continuous hot water for single point-of-use as well as multiple applications. This model is ideal for a medium household with two to three bathrooms. Compact and portable, RTEX-18 is also perfect for mobile homes, RVs, travel trailers, and campers. The low profile design of this water heating system makes it fit perfectly under kitchen sinks and counters.

Energy-Efficient

Rheem RTEX-18 is an energy-efficient water heating system that is capable of saving up to 99.8% energy. This means, with this system, you can cut down your daily energy consumption and save on utility bills.

Durability

Unlike conventional tank-type heaters, this water heater does not have a water tank. So, you do not have to worry about the plague and corrosion buildup in the water tank. In addition, this water heating system is made out of robust copper immersion heating elements with brass top. With a high-quality built, this unit can last for more than a decade without a drop in performance.

Space-Saving

Most people do not prefer to buy a water heater as they tend to be bulky and take up too much space. If you’re looking for a compact-sized water heater for a small home or apartment, Rheem RTEX-18 certainly makes the perfect match. This tankless model is ideal for apartments with limited space, as this unit can virtually fit anywhere.

Safety

This water heating unit is much safer compared to traditional water heaters. Usually, traditional units tend to corrode over time, which often leads to structural damages. Once these heaters start to leak or burst, there is no way you can stop it. With RTEX-18, you do not have to worry about these issues. Even if the system malfunctions, you simply need to shut off the nearest valve to stop the leakage.

Endless Hot Water

Rheem RTEX-18 is a high performing water heater that delivers an unlimited supply of hot water at your apartment or home. This water heating system is powered by self-modulating technology that makes sure you get the water at the right temperature.

Rheem RTEX-08 is a perfect point-of-use water heating application that delivers hot water only when you need it. This model is compact and lightweight, making it ideal for outdoor installation. As this unit is 99.8% energy-efficient, it can also reduce your regular energy bills to a great extent.

Thermostatic Digital Control

Rheem RTEX-08 features an extraordinary control setup, which makes it convenient for you to control and monitor the system. Unlike ordinary digital display, the thermostatic digital display offers the most trouble-free and comfortable experience to the users. This feature makes it easy for you to adjust the water temperature as per your needs.

Energy Efficient

This tankless water heater has earned its popularity among buyers due to its efficiency to save energy and environment-friendly approach. Similar to other Rheem water heaters, this model is also 99.8% energy efficient. This means using this system can cut down power usage and also reduce your utility bills.

Instant Hot Water

One of the best features of this water heater is its ability to supply hot water within seconds. As this water heater does not include storage tanks, it is directly connected to the faucets. This system delivers hot water on-demand when you need it.

Simple Installation

Installing a water heater has never been as easy as it is with Rheem RTEX-08. Even for beginners, installing this heating system is extremely easy and quick. The manufacturer also provides all the necessary equipment that is required for a successful installation. For your convenience, the manufacturer also provides a user manual to guide you through the process.