Best 10 Rheem Water Heaters 2019

Water heaters are a basic necessity to help in extreme weather conditions. Rheem Water Heater is the best one among all. The hot water heaters are the most sought-after home equipment for any household. Tank water heaters are traditional water heaters that work with gas and electric fuel sources. They offer a large volume of hot water that can be dispersed to your entire home. Tank water heaters typically keep the stored water at a temperature near 120 degrees Fahrenheit at all times.

Tankless water heaters do not store heated water, but rather heat water only as it is needed. They also work with gas and electric fuel sources. Depending upon your family’s water usage, you may need more than one tankless water heater. While traditional water heaters are huge in size and consume high energy, their modern counterparts are energy efficient in nature and produce hot water as per need.

Top 10 Rheem Water Heater Reviews 2019

If you want to go for a trusted brand in Water heaters, then you can choose the Rheem Water Heater. Yes, Rheem is one of the best manufacturers of many appliances for Residential and Commercial purpose. With innovative advancements in Water heating, Rheem won many awards too. It even promised its costumers that it will continue providing advanced comfort, savings, and experiences to them. As it is named as the largest manufacturer of water heating products in America and the world’s best manufacturer, there are many types of Rheem Water Heaters for different types of customers.

Rheem hot water heaters are functionally the same with other heaters but differ in the sense that one runs on natural gas. However, some other runs on propane. They offer the same high-powered performance, however, they can be trusted to provide you with hot water no matter how cold it is outside. The Rheem electric water heater units do not shy away from extreme temperatures. If you live somewhere arctic, the best Rheem Heat water will strike like a red-hot iron. Let’s take a closer look at these best tankless water heaters from Rheem. Not only tankless, but you can also find other types from the top 10 Rheem Water Heaters list below.


Rheem RTGH-95DVLN Water Heater

To get the full range of benefits, Rheem RTGH 95DVLN is super important to select the right water heater for your household’s specific needs. This tankless heater comes equipped with a stainless steel condensing heat exchanger that gives an energy efficiency of 94 percent. Additionally, the intelligent electronic controls fastened on the heater add to the energy efficiency. You can easily enjoy a flow rate of 9.5 gallons per minute of water from this Rheem water heater. Furthermore, the kit pairs with the pump to produce hot water instantly at the tap. Additionally, the Rheem tankless water heater has a unique low-NOx system that allows us to install it anywhere (indoors or outdoors) without any need for stainless steel vents.


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However, it is designed to operate as a whole house, we can mount individual cables in case that we want to link different systems at once to serve larger spaces. The Rheem RTGH-95DVLN 9.5 GPM indoor direct vent tankless natural gas water heater requires 199,000 BTUs. Because it is 94 percent energy efficient. Hence, your monthly energy bills should be lower. Moreover, this Rheem Electric Water heater comes equipped with a hot-start programming feature. This allows it to reduce fluctuation in water temperature during the routine on and off operations. This best water heater also has a patented safety OFW (Overheat Film Wrap) feature that gives protection in case of breach of the heat exchanger. The EZ-Link cable technology allows us to connect two tankless heaters in case of high demand operations.

  • Special low-NOx version.
  • Easy installation.
  • Can use both natural and propane gas.
  • Digital display.
  • Digital remote controls.

  • Expensive.


Rheem RTE-13 Water Heater

The Rheem RTE-13 is a small electric tankless water heater. This best water heater weighs 8 pounds and is 7.25 inches wide and 10 inches tall. The Rheem RTE 13 electric tankless water heater, 4 GPM is a metal box with a grey finish. However, you can install it without opening the box. On both sides, you can see 0.5-inch connections piping water into the water heater and move hot water out of it. Moreover, you can control temperature from a panel built into the front of the water heater. The panel of this tankless water heater has red and green LEDs indicating active and standby modes. Rheem water heater also has a thermostat dial that adjusts temperature over nine settings. You can use this Rheem tankless water heater for industrial or residential applications.

Rheem RTE 13

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Furthermore, the heater only requires 0.4 GPM to activate its heating elements. Moreover, this can also put out a maximal flow of 4 GPM. However, this is enough to supply both a bathtub and shower head. The Rheem RTE 13 uses a rugged brass and copper heat exchanger. This best Rheem water heater also carries an Energy Star certification and saves energy by modulating power consumption even while providing a continuous hot water supply. The Rheem RTE-13 is a 13-kilowatt heater that requires 240 volts and 54 amps of electricity. The Rheem RTE 13 electric tankless water heater 4 GPM is a space-saving electric tankless water heater to replace bulky, inefficient water heaters. Just like it is for most electric tankless water heaters, you need to install a 60-amp breaker box. Else, the RTE 13 keep tripping your regular breaker and dimming house lights.

  • Simple interface.
  • Less expensive.
  • Easy to install.
  • Easy to operate.
  • Compact design.

  • GPM Slows as temperature rises.


Rheem RTG-84XLN Water Heater

the Rheem RTG 84 XLN is designed to heat up to 8.4 gallons per minute at a standard 35-degree rise. This means you could easily use at least two water devices at a time without worrying about running out of hot water. This best Rheem water heater is equipped with a UMC-117 remote control. This is mainly designed to provide you with the ultimate comfort and convenience while setting the right temperature of the water. Rheem RTG 84XLN also has a 10-feet thermostat wire that would allow you to install the thermostat wherever you want. This is always preferable and practically mandatory to install the thermostat somewhere where it won’t be exposed to the conditions of the outside. Moreover, this Rheem hot water heater is also certified by Energy Star.

Rheem RTG-84XLN

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This Rheem electric tankless water heater is an outdoor unit hence, it is going to be pretty easy to install. You don’t have to worry about venting out this machine, as it is outside. This makes it really simple and so much easier compared to some of the other water heaters that you may buy that are intended to fit inside your home. If you do live in a colder climate, this could be a problem in some places. But overall, having the outdoor water heater can be a better option. The size of this water heater is also pretty compact. The Rheem tankless water heater comes at 14 x 10 x 226 inches size and weighs roughly about 54 pounds. Hence, makes it perfect for most homes as it won’t need to take up as much space as some other options.

  • Digital remote control.
  • Thermostat included.
  • Easy installation.
  • Water saving settings.
  • Provide faster hot water.

  • DEfective remote.


Rheem RTG-64XLN Water Heater

Rheem RTG-64XLN is phrased as an extremely environmentally friendly and one of the best Rheem tankless water heater. This Rheem water heater conforms to the high standard of Ultra Low NOx burner. This electric water heater uses a copper heat exchanger, unlike many water heaters that use a stainless heat exchanger. However, this stainless heat exchange is also good and efficient but using a copper heat exchanger gives 40 times faster heat transfer. Rheem is giving 82% efficient copper heat exchanger with the model Rheem water heater RTG-64XLN. The heater also has a built-in self-diagnostic program. Furthermore, it displays maintenance codes whenever something goes wrong. When an error is detected in the tankless water heater, an error code is displayed on its digital controller.

Rheem RTG-64XLN

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You will also get a manual explaining these codes with the heater. Hence, you can check it for quick reference and troubleshooting issues and may solve it yourself. With 14 x 10 x 26 inches dimension, the Rheem electric water heater is very compact and space saving. Hence, you no longer need to worry where to hang it or hide it. This will eat up 1/5th of the space of a traditional heater making more space for other purposes. These Rheem hot water heaters are capable to support 3 faucets at a time. It generally happens very rarely at a home where 3 people take bath and one uses the dishwasher simultaneously. Even if such incident occurs, Rheem RTG-64XLN 6.4 GPM Tankless Natural Gas Water heater can support it with 6.4-gallon water per minute.

  • Space saving.
  • Endless hot water.
  • Safe water heater.
  • Additional remote control.
  • Uses the best technology.
  • Automatic shutoff.

  • Designed mainly for outdoor wall mounting.


Rheem RTGH-95DVLP Water Heater

Rheem RTGH-95DVLP Water Heater comes with 9.5 gals/min at 35 degrees F rise max and 8.4 gals/min at 45 degrees F rise. This best Rheem water heater is equipped with efficient stainless steel condensing heat exchanger. Moreover, the 2-Pipe Direct Vent System of this tankless water heater is designed for PVC Pipe up to 35 ft. of 3″ PVC Pipe or 5 ft. of 2″ PVC Pipe. It is accommodated with 26 GPM Minimum Flow Rate and 40 GPM Minimum Activation Flow Rate. A Digital (UMC-117) remote control and 10 ft of thermostat wire included with this Rheem RTGH-95DVLP Water Heater. PLus, EZ-Link cable is made available for high demand applications to connect two tankless units to operate as one.


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This Rheem electric water heater gives continuous hot water. It is also energy saving and comes compact hence remained as a space-saving water heater. Moreover, the intelligent electronic controls of this Rheem are designed to increase energy efficiency and safety. The Digital display of this Rheem hot water heater shows temperature setting and maintenance codes. It is also supplied with a 120-volt power cord (indoor models only). This top-rated water heater comes with an environmentally friendly Low NOx burner that meets SCAQMD rule 1146 requirements. However, the flow rates may vary depending on the temperature of cold water supply. The Rheem warranty on RTGH-95DVLP is 12-Year Limited Warranty on the heat exchanger, 5-Year on parts, 1-Year on labor. Some extra features of this best Hot water heater are Self Diagnostic System and Built-in electric blower.

  • Easy to install.
  • Highly efficient.
  • High water volume.
  • Great looks.

  • Noise from Blower.


Rheem RTEX-13 Water Heater

This Rheem RTEX-13 water heater provides instant and continuous hot water for up to 2 showers (based on your geographic location). Rheem Tankless Electric Water Heaters help reduce energy usage and hence save on energy costs. These tankless water heaters are small so they can be a perfect match for installations under a cabinet or sink in your home, office, boat or RV. Moreover, the Rheem RTEX-13 240V is a great value with a 5-year no-leak, 1-year parts limited warranty. This best Rheem hot water heater is named as energy and cost savings. Hence, it heats water only when it is needed for savings of up to 50% on water heating costs when used in a point-of-use application. Moreover, the Rheem Electric water heater instantly provides ample hot water for up to 2 showers.

Rheem RTEX-13

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This small water heater comes with a compact design and hence fits perfectly in tight places like under cabinets and sinks. Hence, it is a Great investment and value. Furthermore, the Rheem RTEX-13 is very easy to adjust. Because it is equipped with electronic temperature control that can be adjustable in 1° increment from 80°-140°F with easy-to-read display (Celsius and Fahrenheit compatible). This Rheem water heater installation is also easy. However, it is compatible with 1/2 in. Plus, there are water connectors for flex hose installation and no venting or TandP valve required for easy installation. The Rheem Tankless water heater is very durable and also easy-to-replace heating elements. Finally, it is the best reliable hot water solution from Rheem, the best global leader in water heating.

  • Simple installation.
  • Highly energy efficient.
  • Advanced self-modulation.
  • Space-saving water heater.
  • compact and Stylish design.
  • Digital temperature display.

  • May not handle the hot water.


Rheem RTG-64DVLN Water Heater

The Rheem RTG-64DVLN Water Heater is 82% energy efficient with its stainless steel condensing heat exchanger. The Intelligent electronic controls of this Rheem water heater are mainly designed to increase energy efficiency and safety. moreover, the third party efficiency is listed by AHRI. Plus, this Rheem electric water heater is equipped with a self-diagnostic system that gives you easy installation and service. Moreover, the Digital display of this Rheem RTG-64DVLN shows temperature setting and maintenance codes. However, the hot start programming that comes with this tankless water heater helps minimize fluctuation in water temperature. It also referred to as “cold water sandwich”, during times of frequent on/off operation. It can connect to Metal Fab. Inc., 3″/5″ concentric venting without an adapter.

Rheem RTG-64DVLN

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Moreover, the EZ-Link cable made available with this RTG-64DVLN hot water heater for higher demand applications to connect two tankless heaters to operate as one. This best Rheem water also equipped with environmentally friendly Ultra Low NOx burner that meets SCAQMD rule 1146.2 requirements. It also comes with a Digital remote control and 10 ft. of a thermostat as the major accessories. The Rheem tankless water heater RTG-64DVLN supplied with a 120-volt power cord (indoor models only). It is also Freeze protection to -30°F. The Rheem hot water heater has a 0.26 GPM minimum flow rate and 0.40 GPM minimum activation flow rate. Finally, the Rheem warranty is 5 years on Parts, a Labor Warranty of 1 Year and the Heat Exchange Warranty of 12 Years.

  • Works perfectly.
  • Best quality.
  • Very Quiet.
  • Great price.
  • Good warranty.

  • Poor service.


Rheem 50 gallon electric water heater

You never buy another water heater after looking at this Rheem 50 Gallon Electric Water Heater. Its non-metallic tank eliminates rust and corrosion which leads to leaks in typical tank water heaters. This Rheem water heater backed by a lifetime warranty (with registration) and hence eliminates the hassle of periodically replacing your water heater. Moreover, the Rheem 50 galloon is lightweight and hence perfect for replacement of an existing water heater. Furthermore, the Rheem MR50245 is a great investment and value. However, its lifetime tank warranty (registration required) equates to a savings of over USD 5,700. This best hot water heater comes with no leaks and longer lasting. Plus, its non-metallic tank is impervious to rust and corrosion which can lead to leaks in metallic tanks. The Rheem MR50245 water heater prevents smelly water. Its tank construction eliminates the need for an anode rod that can cause smelly water.

Rheem MR50245

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The Rheem 50 Galloon water heater is perfect for replacement. The tank’s size and light weight make the Rheem is easy to get home and in position. It is, however, easy to maintain and use. Moreover, longer-lasting titanium element prevents corrosion buildup, there’s no anode rod to replace. Plus, the bowl-shaped bottom of this Rheem hybrid water heater allows water to drain more completely and an oversized access panel makes it easier to remove sediment. The Rheem MR50245 provides ample hot water for households with 3-5 people or homes with 3 plus bathrooms. It is backed by a lifetime limited warranty on the tank and a 6-year limited warranty on parts (with registration). Finally, the Rheem MR50245 50 gallon electric water heater is the reliable hot water solution from Rheem.

  • Designed for simplicity.
  • gives enough hot water.
  • Easy to install.
  • Easy to maintain.
  • Prevents smelly water.
  • Good tank capacity.

  • Expensive.


Rheem 40 gallon electric water heater

This Rheem MR40245 electric water heater is quite efficient and uses more energy than most other comparable water heaters. The Rheem Marathon water heater MR40245 use immersion electric water heater elements that apply 100% of the energy it uses towards heating water stored in the tank. Rheem 40 gallon water heater experience very little heat losses due to its high-tech Envirofoam insulation that surrounds the water heater tank. Moreover, the Envirofoam insulation of this Rheem water heater traps the heat inside the tank. Hence, keeps the water hotter for longer periods of time without the water heater’s components cycling on and off to re-heat the water. Rheem water heater MR40245 made of cross-fiber polybutene. Therefore, unlike a metal tank, hard water cannot damage the water heater tank. As a result, Marathon water heaters last much longer than regular steel electric water heaters.Rheem MR40245

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Rheem 40 gallon water heater tanks built free of metal, hence eliminating the need for sacrificial anode rods. This Rheem water heater often used to replace water heaters with sacrificial anodes that can cause a sulfuric odor. However, the Rheem 40-gallon water heater is appropriate for installations in homes with 2-3 family members. The 40 Gal. Marathon electric water heaters also provide hot water with peace of mind. Plus, its Plastic tank eliminates the need for anode rod and hence prevents smelly water. The Rigid foam insulation of this Rheem water heater covers the entire tank for maximum efficiency. Its bowl-shaped tank bottom drains completely for easy service and sediment removal Lower titanium heating element gives superior resistance to lime buildup. Finally, the Rheem 40 gallon electric water heater MR40245 comes with Lifetime limited warranty on tank and 6-year limited warranty on parts.

  • Non-metallic tank.
  • Lifetime limited warranty.
  • Electric tank water heater.
  • Highly efficient.

  • Leaking water.


Rheem PROG50-42N RH67PV water heater

The Rheem PROG50-42N RH67PV looks like a natural gas water heater, but still utilizes indoor air for combustion. This Rheem gas water heater comes with a blower that will exhaust the gases from the home. You also have access to an exclusive air and fuel shut-off device on this appliance. This made this Rheem nice for maintenance and servicing purposes. This Rheem water heater does not require a filter. Hence, regular maintenance chores are reduced with this heater as well. It comes with the exclusive anode rod technology that Rheem has incorporated. It is something they call “R-Tech” and helps to provide more protection to the interior of the tank. However, this technology gives you a prolonged time of protection.

Rheem Gas water heater

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The Rheem water heater PROG50-42N RH67PV also offers long venting lengths, up to 100 equivalent feet. Hence, installation is about as easy as it gets. The blower on this Rheem Gas water heater is extremely quiet, to the point where you can barely hear it running even when you’re standing next to it. This tankless water heater also has a fast heating cycle. Hence, you can easily produce almost 100 gallons of hot water over the course of 60 minutes, giving it a complete cycle of just under 30 minutes when you set at 120F. Like many new gas water heaters, there is an adjustment dial and warning indicator with this Rheem water heater. This will flash a code if something is wrong with the Rheem hot water heater. However, the quick cycling times, self-diagnostic system and improved monitoring technologies make this Rheem heater water a logical investment.

  • Energy star approved.
  • Most advanced features.
  • Quite efficient.
  • Uses more energy.

  • Expensive.

How to Choose the best Water Heater?

Are you planning to buy a new water heater/geyser and confused with the options available and sizes available? If yes then you are not alone. There are many people who face the same problem when buying a water heater. When buying a water heater one has to make sure that it not just serves the need of the family but also should not increase electricity bills (or units consumed) significantly. In general, we might look at the wattage of the water heater to determine the amount of electricity the water heater might use. But wattage does not have any impact on the electricity consumption of water heater. Hence, We try to list out some important factors that are to be seriously considered in a water heater.


Energy Efficiency

The modern tankless water heaters are much more energy efficient than other traditional water heaters. However, the tankless water heater heats water only at the time it is being used. Therefore, the energy is consumed only at the time when the hot water heater is on. On the other hand, in case of a traditional water heater setup, water is stored in a large tank. When the water in the tank cools off, the fuel kicks in and heats that up again. Hence, an energy efficient water heater saves your money on electricity bill every month. So, before buying a water heater, look for one with a higher energy factor.

The cost of tankless water heaters is a bit more than their non-energy efficient counterparts. But the energy and the savings in future can make up for the initial higher price. However, upgrading to a tankless water heating system is a good idea considering the long-term environmental benefits these water heaters may provide.


Storage tank water heaters are classified by the amount of water they hold in terms of gallons. Hence, the tank size is a major consideration. In order to assure that your household has enough hot water, it is essential to determine how much hot water you need on average. Unless you prefer a tankless water heater, you need a larger tank with a larger household. Another consideration for storage tank water heaters is its recovery rate. This is nothing but the number of gallons of water they can heat in an hour. Hence, the greater your demand for hot water, the larger recovery rate you need. If you intend to use a tank water heater, use the chart given in the Rheem water heater manual as a guide to finding the size you need.

Electric Water Heaters

Electric geysers specifically use an electric heating element to heat water. Moreover, the electric water heaters are more popular and hence, most households use electric geysers. They are best known to heat water at higher temperatures than gas geysers. However, the electric heaters like Rheem water heaters are not expensive but have a higher operational cost. The use of extra efficient heating elements has brought the running cost down though. Furthermore, the simple mechanisms make them easier to maintain and use. Electric water heaters are also safer than gas geysers. Depending on the tanks used, they are also smaller than gas geysers, that makes them easy to install.

Gas Water Heaters

Nowadays, the Gas water heater is slowly gaining popularity in the market. These gas hot water heater models use gases such as LPG and propane gas to heat water. They are mainly suitable for people who have a piped gas connection at home. The best quality of a gas heater is that they heat water much quicker than their electric counterparts. They are also very economical to use. Research shows that the operation cost of a gas water heater is roughly half that of an electric geyser. The only disadvantage of a gas geyser is its size. The gas water heater models are generally larger as they need more space for ventilation unit. Installation of the geyser is also a bit difficult, as other things like the connection of the gas pipe have to be considered.

 Once you’ve decided the type, you need to decide if you want a tank or tankless geyser.

Storage Water Heaters

Storage water heaters have a tank built in them that holds water which is then heated later. Here, first, the water enters the tank, then heated and then flows out from the top through another pipe. One of the major issues with storage geysers is that the water loses its temperature over time when it sits in the tank. However, the storage heaters come in many capacities, starting from a litre to even 30 liters. This is more than enough for most households. Larger capacities are also available for the one with larger homes. Moreover, the capacity of the tank depends on the number of members in a family. Choose the capacity of the water heater, by determining the amount of water you need.

For example, a family of three would generally need at least 20 liters of hot water for a bath. A 20 -25 liters storage water heater should suffice in such cases. On the other hand, if you use a shower or a bathtub, you would obviously need a much larger capacity geyser.


Tankless water heaters are also known as instant geysers. They are called that because they give hot water almost instantly. Tankless heaters are known for their power saving and the ability to store hot water continuously. Tankless geysers are also effective as there is no wastage of water. You don’t have to deal with standby heat loss either. However, the tankless water heaters are more suited for a small family. They used more often for wash-basins or dishwashers, or other similar appliances. These are the best types of geysers you can look for. However, the price of the geyser and its running cost depends on its type. Besides all, it also depends on the kind of features it has.


Maintenance of the geyser also depends mainly on the type of water heater and also on the usage. Make sure you always switch off the geyser when it is not required to avoid overheating. It is better to dial down the temperature of the water as much as you can. If you are having a tank geyser, then you should get the storage tank cleaned every once in a while, to avoid rusting. It assures efficiency and longer life. Following some of these tips would not only result in a longer life but also help to reduce the maintenance cost.

You should also inquire about the warranty provided by the manufacturer. Most manufacturers provide at least a minimum warranty of 2 years. Some also provide different warranty periods for different parts of the heater. You also inquire about the extended warranty. Be sure to explain your needs to the friendly staff when you visit the store. They will be more happy to help you in selecting the best water heater for your family.


If we consider the price factor, the tankless water heaters cost more than the regular storage tanks. Moreover, tankless heaters need electrical outlets for their fan and electronics, upgraded gas pipes, and a new ventilation system. Hence, it is pretty clear that there is a big difference in price tag. A tankless water heater does save money as a tankless unit activates only when needed. Hence, in this way, you use less energy but shelling out money up front is also not a very good idea of course. Before making a choice, hence, do consider your specific home needs and your lifestyle.

Why Only Rheem Hot Water Heaters?

Rheem is an American Manufacturing Company and is a privately held manufacturer. The brand Rheem delivers residential and commercial water heaters and boilers, as well as heating, ventilating and air conditioning (HVAC) equipment. Rheem also produces and sells products under the Ruud brand name. It is a subsidiary of Paloma Industries. What became Rheem started in 1925 as a supplier of packaging to the petroleum industry and is currently headquartered in Atlanta, Georgia in the United States. The company Rheem is one of the largest manufacturers of both water heating and HVAC equipment in the United States. It also produces and markets products in Armenia, Argentina, Bahrain, Australia, China, Canada, Brazil, Iraq, Mexico, Kuwait, New Zealand, Qatar, Oman, Saudi Arabia, UAE, Singapore, and Ukraine.


If you are able to purchase the appropriate unit, the Rheem water heater is the best option for you. Hence, we suggest you look for the best Rheem hot water heater reviews and compare it with your personal requirement before making a decision. All in all Rheem water heaters are a good choice, especially as there have a wide variety of products on offer that provides different needs and budgets. If you are looking for a trusted name in water heaters and want high quality, energy efficient and durable heaters, Rheem water heater is your go-to brand.

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