Best Rheem Tankless Water Heater Reviews

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The tankless water heater is also referred to as on-demand water heaters. When looking for the best tankless water heater, you should look at the Rheem tankless water heater reviews, to be able to make a sound choice. With the Rheem hot water heater, you will be able to get hot water when you need it.

This has come to replace the traditional water heaters, which are not energy efficient. When the hot water runs out in the tank, you would have to wait for the heater to preheat it. As for the Rheem tankless electric water heater, the water is heated instantly, as you run the tap.

When you look at the Rheem water heater reviews, you will realize that there are quite a number of models on the market. You can choose to have the electric or the gas water heater. At the end of it all, you will end up saving a whole lot of money on the energy costs.

Fortunately, the Rheem water heater does not take up so much space due to its compact design and as such, you can have the unit installed anywhere. In order to find the best tankless water heater, there are a number of factors that you should consider. In this article there are a number of Rheem tankless water heater reviews 2017, to help you make an informed decision on the ideal model.

Rheem Tankless Water Heaters Comparison Chart


Top Rheem Tankless Water Heater Reviews

While the market is flooded with so many different water heaters, we have taken time to evaluate and test some of the best models. Here are the top Rheem tankless water heater reviews.


Rheem RTG-64XLN 6.4 GPM Low NOx Outdoor Tankless Natural Gas Water Heater


Product Quality and Specification:

Best Rheem Tankless Water Heater ReviewsThe Rheem RTG 64XLN is one of the best choices if you want to purchase a Rheem water heater. This is a water heater that has a flow rate of 6.4 GPM, as such, you can be able to get up to 6.4 gallons of hot water per minute, thanks to this Rheem gas tankless water heater. With its capacity, you will not need to install multiple units so as to be able to run the water in different taps.

The Rheem tankless gas water heater is energy efficient, with the efficiency being rated at 0.82. The Rheem RTG 64XLN weighs only 54 pounds, which makes it easier to support it during installation. Due to its compact size and sleek design, you can mount the Rheem outdoor tankless water heater in any place, even where there is limited space.

The key advantage with the Rheem RTG-64XLN 6.4 GPM Low NOx Outdoor Tankless Natural Gas Water Heater is the fact that it has a low NOx function, which prevents emission of toxic gases. As such, you will not need very complicated vent systems. With natural gas as the main source of fuel, you will be able to save so much on energy costs. If you are looking for the best tankless water heater to install outdoor, then consider the Rheem RTG 64XLN.

Rheem RTG-64XLN 6.4 GPM Low NOx Outdoor Tankless Natural Gas Water Heater

Price: $$$ | Type: Outdoor | Power: Natural Gas | GPM: 6.4 Per Min | Origin : USA | Item Weight : 54 pounds

Rheem RTG-64XLN Outdoor Tankless Natural Gas Water Heater Features

Rheem RTG-64XLN 6.4 GPM

  • The flow rate is at 6.4 GPM, which makes it an ideal unit to serve the whole house, with 6.4 gallons of hot water per minute.
  • As for the temperature range, it runs from 85°F to 185°F, which can be adjusted accordingly, based on your preference.
  • For enhanced convenience, this model comes with a remote control, which makes it easy to operate it.
  • The low NOx feature eliminates the need to have an advanced vent system, since the gas emissions are minimal.
  • This Rheem water heater required 150,000 BTUs, as the power to run it.


Rheem RTE 13 Electric Tankless Water Heater, 4 GPM


Product Quality and Specification:

Best Rheem Tankless Water HeaterThe Rheem RTE 13 tankless water heater is ideal for use in various applications. It will heat up water as needed and it designed to serve a single source at a go. This is known for its energy efficiency and will ensure that you get hot water on demand. With a flow rate of 4 gallons per minutes, you can be take long showers without any worry.

The Rheem electric water heater uses the rugged brass/copper heat exchanger to be able to produce the heat required. Copper has the ability to conduct and distribute heat in a uniformed manner and as such, makes it ideal for this water heater. It will also last for a very long period of time since resists corrosion.

This Rheem tankless hot water heater has a temperature adjustment dial, which will allow to set the temperature according to your preference. The LED status lights on the Rheem RTE 13 will indicate whether the water heater is active or on standby mode. With this indicators, you will tell when the elements are energized or not.

With the Rheem water heater, you can be able to use it across different applications. The compact design will allow it to fit anywhere, in the provided space. This the best tankless water heater, which can be used at any given point.

Rheem RTE 13 Electric Tankless Water Heater, 4 GPM

Price: $$$ | Type: Not Mention | Power: Electric | GPM: 4 Per Min | Origin : USA | Item Weight : 7.3 pounds

Rheem RTE 13 Electric Tankless Water Heater Features

Rheem RTE 13

  • The Rheem water heater has a 4.0 GPM as the maximum flow rate.
  • The rugged copper/brass heat exchange allows the heater to provide heated water consistently.
  • There is an on-unit temperature control, which has LED indicators that show when the element is on standby mode or active.
  • It used the ½” stands water connection, making it quite convenient.
  • It has modulating power features and used designed to be used with single show applications.


Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater


Product Quality and Specification:

Rheem Tankless Water Heater ReviewsIf you are looking for a Rheem water heater that will provide exclusive water saving settings, then the Rheem RTGH 95DVLN is the right choice for you. With this model, you will be able to save up to 1,100 gallons of water per year as the RTGH 95DVLN has the capacity to decrease the flow rate of the water.

There is a recirculation pump kit, which is ready to ensure that you are getting hot water at all times. The Rheem water heater is low flow fixture compatible, which means that even when the water flow is low, you can get about .26 GPM. The hot start programming option has the option to minimize the fluctuation of the water temperature.

The exclusive Guardian OFW is special feature, which will protect any cases of overheating. This overheat film wrap is an exclusive feature of this Rheem tankless gas water heater. There is an EZ-Link cable, which is available to be able to connect two tankless units so that they can work as one. The digital remote control and the 10 ft thermostat wire are also included as part of the features of the Rheem gas water heater.

Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water

Price: $$$$ | Type: Indoor | Power: Natural Gas | GPM: 9.5 Per Min | Origin : Japan | Item Weight : 79 pounds

Rheem RTGH-95DVLN Indoor Tankless Natural Gas Water Heater Features

Rheem RTGH-95DVLN

  • This Rheem water heater model has a stainless steel condensing heat exchanged, which will allows it to grant a 94% energy efficiency.
  • You can increase the energy efficiency using the intelligent digital controls
  • The Rheem tankless gas water heater has a temperature range setting of 98° F to 185° F.
  • The Low Nox version, will reduce the amount of gas produced and as such, there is no need for complex vent systems.
  • You can use it with a PVC pipe of 38 feet long and diameter of 3-inches or even the 5 feet of 2-inch PVC pipe.


What to Consider When Buying a Tankless Water Heater?


There are so many considerations that you should bear in mind when buying the Rheem water heater. Here are some of the key factors to consider:

Gas, Electric, or Propane:

Are you looking for a Rheem hot water heater which will use propane, gas or electricity are the heat source. When looking at the specific Rheem tankless water heater reviews, your attention should be on the heat source so as to ensure that it works the specific one that is your preferred option.

Capacity and Size:

Unlike the conventional water heater, the tankless water heater does not have a tank to store water. As such you should consider the demand of the hot water and the specific capacity of the Rheem tankless electric water heater. The overall size is also an essential consideration so that you can tell where to mount it.

Family Size Peak Demand Output Requirement
2 People 45 - 55 Gallons
3 People 55 - 65 Gallons
4 People 65 - 75 Gallons
5 People 75 - 85 Gallons
6 People 85 - 100 Gallons
7 People 100 or More Gallons

GPM- Gallons per Minute:

You should check the flow rate, when looking at the Rheem tankless water heater reviews so that you can be able to establish the amount of hot water it will provide in a minute.

Water Device GPM- Gallons per Minute
Kitchen Faucet 2.5
Low Flow Kitchen Faucet 1.5 – 1.8
Bathroom Faucet 2.2
Shower Head 2.5 – 5.0
Low Flow Showed Head 1.0 – 2.0
Washing Machine 3.0 – 4.0
Dish Washer 2.0 – 3.0

Price and Warranty:

Generally, the Rheem water heater is expected to last for a very long period of time. However, you should compare the various models, factoring in the price and the warranty period. Ordinarily, having a unit with a very long warranty is a sign of superior quality.


Other Features:

In order to find the best tankless water heater, here are other factors to consider:

  • You should check the installation process as well as the performance features that you will get from the water heater.
  • Consider a Rheem water heater that has an LCD or digital display, which makes it easier to use and make adjustments.
  • Check out the various features that your Rheem tankless gas water heater has to offer.
  • The temperature range is also an essential consideration, depending on your region and the temperature of the water required.
  • Check the energy efficiency rating, which is the strongest selling point of the Rheem water heater to the home owners.

For more in depth information How to Install a Tankless Water Heater? you should read this article from Here


Final Thoughts:

Rheem is an established brand and has a number of water heaters to offer. From the Rheem tankless water heater reviews, we have carried out, our recommendation is the Rheem RTG-64XLN 6.4 GPM Low NOx Outdoor Tankless Natural Gas Water Heater, which is quite versatile and has so many features. It has a flow rate of 6.4 GPM, which allows it to serve the whole house conveniently. This is a model worth trying if you want the best tankless water heater.

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Hey there, my name is Erik Larry, glad you found your way here. With my great experience with water heaters, you will be able to learn a whole lot on Sweet Home Insider. I have been installing and maintenance the water heaters for a number of years, and as a result, I have gained vast experience in this field. If you have any questions or comments, feel free to get in touch.