Best Rheem Tankless Water Heater Reviews (2019)

0

Rheem Water Heater 

Rheem tankless water heaters have now become a popular household brand. Their trustworthy reputation has been built since 1925 by the Rheem brothers.

However no brand is perfect. There is always models that outperform and are more popular than others.

We have done our research into popular models and have thoroughly assessed customer feedback to identify our list of the best Rheem hot water heaters.

We have taken into consideration all households so whether you are looking for a single point of use tankless water heater, multi point of use or for a whole house tankless water heater, you will find a model that is compatible for you.

Top 10 Rheem Tankless Water Heater Reviews Comparison Table

Name Rating Prices Fuel Type Application type Location
Rheem RTGH-95DVLN 4.2 out of 5 stars (4.2 / 5)

Read Reviews

 

CHECK PRICE ON AMAZON Natural Gas Whole House Indoors
Rheem 240V 4 Chambers 4.5 out of 5 stars (4.5 / 5)

Read Reviews

 

CHECK PRICE ON AMAZON Electric Whole House Indoors
Rheem 240V RTEX-13  4.3 out of 5 stars (4.3 / 5)

Read Reviews

 

CHECK PRICE ON AMAZON Single point /multi point Whole House Outdoors/indoors
Rheem 240V 2 RTEX-18  3.9 out of 5 stars (3.9 / 5)

Read Reviews

CHECK PRICE ON AMAZON Natural gas Whole house Indoors
Rheem RTGH-84DVLN  5 out of 5 stars (5 / 5)

Read Reviews

 

CHECK PRICE ON AMAZON Natural Gas Whole house Indoors
Rheem RTGH-84DVLP  5 out of 5 stars (5 / 5)

Read Reviews

 

CHECK PRICE ON AMAZON Liquid propane Whole House Indoors
Rheem 240V 3 RTEX-24  3.9 out of 5 stars (3.9 / 5)

Read Reviews

 

CHECK PRICE ON AMAZON Electric Whole house Indoors
Rheem 240V RTEX-11  3.8 out of 5 stars (3.8 / 5)

Read Reviews

 

CHECK PRICE ON AMAZON Electric Single Point Indoors/Outdoors
 

Takagi T-H3S-OS-N

 3.4 out of 5 stars (3.4 / 5)

Read Reviews

 

CHECK PRICE ON AMAZON Electric Single point / multi point Outdoors/Indoors
Rheem Performance Platinum  5 out of 5 stars (5 / 5)

Read Reviews

 

CHECK PRICE ON AMAZON Natural Gas Whole House Indoors

Rheem Water Heater Reviews

1

Rheem RTGH-95DVLN 9.5 Gpm Tankless Heater

  • Fuel Type: Natural Gas
  • Application Type: whole house
  • Location: Indoors
  • GPM:9.5
  • Energy Efficiency: 94%
  • Size: 18.5 x 9.8 x 27.5 inches
  • Weight: 79 pounds
  • Display: Digital
  • Warranty: 10 Years
  • User rating: 4.2/5

You will find great features when using this tankless water heater. For instance, with a warranty of 12 years, you are assured of quality service and durability of the heater.

It has a flow rate of 9.5 gallons of hot water per minutes, which is relatively high when you compare to other brands. Such a flow rate allows you to serve several users without having to worry about running out of hot water.

This tankless water heater has an energy efficiency of 94% implying that there is less amount of heat lost during the heating process. Another cool feature of this brand is the NOX feature, which reduces harmful emissions to the atmosphere.

Also, if you are a lover of water conservation, then this is the kind of heater for you. It has a water-saving activation technology that saves excess water by decreasing the water flow rate.

The technology does this until the temperature of the water in the pipes is reached.

I can’t finish this review without mentioning the recirculation pump kit that is part of this model. This kit facilitates the circulation of water, which reduces heat loss thus saving you on energy bills.

I am text block. Click edit button to change this text. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.

PROS:
  • High efficiency in terms of energy at 94%
  • NOX capability meaning less emission of harmful radiations
  • Easy to install
  • Multiple sources of energy, that is, you can use either natural gas or propane.
  • Intelligent controls allow you easy control of the water temperature.
  • It will always notify you on maintenance issues.

CONS:
  • Claiming warranty seems to be an issue so make sure your installation and venting requirements are compliant to back yourself up.

User Rating:

4.2 out of 5 stars (4.2 / 5)

2

RHEEM 240V 4 Heating Chambers RTEX-36 Residential Tankless Water Heater

  • Fuel Type: Electric
  • Application Type: Whole House
  • Location: Indoors
  • BTU:
  • GPM: 7
  • Energy Efficiency: 99.8%
  • Size: 4 x 22 x 19 inches
  • Weight: 22.7 pounds
  • Display: Digital
  • Warranty: 5 Years
  • User rating: 4.5/5

This tankless water heater offers you cool features that will leave you enjoying value for your money. Such features include a thermostatic control that includes an LED display.

Also, you get to enjoy an easy way of controlling your hot water requirement through the use of a self- modulation control system.

Durability is what you will get with this brand because of the copper heating element, which can withstand corrosion.

When it comes to installing and replacement, you do not have to hire a professional since the brand is threaded. This enables quick installation and replacement.

PROS:
  • Easy temperature control
  • Multiple points of use
  • A constant supply of hot water

CONS:
  • Wiring harness needs to be checked on arrival. Rheem will send you a new one if there are any issues

User Rating:

4.5 out of 5 stars (4.5 / 5)

3

Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater

  • Fuel Type: electric
  • Application Type: Single /Multi Point point
  • Location: Indoor /outdoor
  • GPM: 3.17
  • Energy Efficiency:
  • Weight: 8.5 pounds
  • Display: Digital

The advantage of this tankless water heater is it is a strong water heating element that allows you to use it for a long time without replacing it. This heater comes with a clear LED display which allows you clear visibility of the temperature readings.

Also, it comes with a digital thermostat that allows you to regulate the temperature of the hot water remotely.

PROS:
  • Consists of two heating chambers which guarantees constant hot water supply for point of use
  • It has the latest self-modulation
  • Consists of an external digital thermostat control

CONS:
  • Challenge to install on your own

User Rating: 

4.3 out of 5 stars (4.3 / 5)

4

Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater

  • Fuel Type: Electric
  • Application Type: Multi Point point
  • Size: 4 x 15 x 19 inches
  • Weight: 8.5 pounds
  • Display: Digital

This tankless water heater offers you cool features that will leave you enjoying value for your money. Such features include a thermostatic control that includes an LED display.

Also, you get to enjoy an easy way of controlling your hot water requirement through the use of a self- modulation control system.

Durability is what you will get with this brand because of the copper heating element, which can withstand corrosion.

When it comes to installing and replacement, you do not have to hire a professional since the brand is threaded. This enables quick installation and replacement.

PROS:
  • Availability of a self- modulating system gives the unit flexibility of using either 11, 000 or 190, 000 BTU every hour
  • 8 GPM flow rate allows for a continuous supply of hot water that can serve up to four showers at a go.

CONS:
  • The manufacturer’s warranty is limited than that which other manufacturer’s offer to their brand.

User Rating: 

3.9 out of 5 stars (3.9 / 5)

5

Rheem RTGH-84DVLN 8.4 GPM Low NOx Condensing Indoor Direct Vent Tankless Natural Gas Water heater

  • Fuel Type: Natural Gas
  • Application Type: Whole House
  • Location: Indoors
  • BTU: 110,000- 157,000
  • GPM: 8.4
  • Energy Efficiency: 94%
  • Size: 1 x 1 x 1 inches
  • Weight: 77.4 pounds
  • Display: Digital

If you are looking for a digital control tankless hater that consists of a recirculation pump, then this is the one for you. This tankless water heater has a GPM of 8.4 and energy efficiency of 82%

Its design allows for self- diagnostic thereby ensuring that it will always perform at an optimum level. Moreover, its flow rate is at 8.4 GPM, which is sufficient to ensure a constant supply of hot water.

To help minimize water wastage, this tankless water heater has a water saving setting, which can help you save up to 1, 100 gallons of water per year.

PROS:
  • If you have a mid-size residential building, then this heater is the best choice
  • It has all the technological knowledge that Rheem offers for all its brands.
  • Its small size allows you to fit it anywhere of your convenience.
  • It emits a low level of radiations.

CONS:
  • May require additional ventilation
  • Lengthy install

User Rating: 

5 out of 5 stars (5 / 5)

6

Rheem RTGH-84DVLP Indoor Direct Vent Liquid Propane Condensing Tankless Water Heater

  • Fuel Type: Liquid propane gas
  • Application Type: Whole House
  • Location: Indoors
  • GPM: 8.4
  • Energy Efficiency:
  • Size: 8 x 18.5 x 27.5 inches
  • Display: Digital

If you are looking for a natural gas unit for your application, then this is a perfect choice. Its enticing features include a flow rate of 8.4 gallons of hot water per minute.

This depends on the warmth level you want your water to be and the place you live in. Its total weight is 54 pounds, which are lightweight for easy installation at a place of your convenience.

The NOX feature ensures there is minimal emission of dangerous radiation.

PROS:
  • You can remotely control the temperature of the hot water using a remote controller that comes as a package with the heater.
  • Has a high flow rate of 8.4 gallons of hot water per minute
  • Low emission of radiation

CONS:
  • Challenge to install on your own

User Rating: 

5 out of 5 stars (5 / 5)

7

Rheem 240V 3 Heating Chambers RTEX-24 Residential Tankless Water Heater

  • Fuel Type: Electric
  • Application Type: Multi Point
  • Location: Indoor / Outdoor
  • GPM: 5.9
  • Energy Efficiency:
  • Size: 4 x 18 x 19 inches
  • Weight: 17.8 pounds
  • Display: Digital

Another great product from RHEEM that guarantees you efficiency and quality service for your hot water needs. It comes with a capacity of 6.4 gallons of water per minute and a thermostat cable that is at least 10 feet.

Also included in the package is a remote control that gives you control of your hot water temperature. As a mark of quality, this unit has an EnergyStar certification

PROS:
  • Has the latest technological advancement including a digital thermostat control
  • Quite small, which allows you to fit it at a place of your convenience.

CONS:
  • Some claim that it is sufficient for single point of use only

User Rating: 

3.9 out of 5 stars (3.9 / 5)

8

Rheem 240V Heating Chamber RTEX-11 Residential Tankless Water Heater

  • Fuel Type: Electric
  • Application Type: Single Point
  • Location: Indoor / Outdoor
  • Energy Efficiency: 99.8
  • Size: 4 x 9 x 13 inches
  • Weight: 7 pounds
  • Display: Digital

Rheem did not compromise on quality when manufacturing this brand since it comes with the latest technological features. With an external digital display, you can monitor the outlet temperature of your water.

You have a guarantee of the constant flow of water with this model, which also has a copper heating element. The element is corrosion free ensuring the durability of your product.

PROS:
  • Long warranty for you to get quality service from this tankless heater.
  • Adjustable Temperature
  • Install straightforward with hands on experience
  • A constant flow of hot water for single point of use

CONS:
  • Light flickering if not installed correctly

User Rating: 

3.8 out of 5 stars (3.8 / 5)

9

Rheem RTE 13 Electric Tankless Water Heater

This is a worthy investment if you are in the market for an on-point application. It has been designed for single point usage only with the ability to discharge four gallons of hot water per minute.

Inside the package is a modulating power controller that has nine settings, which allow you to customize the settings. The housing of the heater is a metal box that has a grey finish.

PROS:
  • It is energy star rated
  • The modulating power control gives you the capacity to control the settings of the heater
  • Easy to install

CONS:
  • The one-year warranty offered to the parts is somehow not sufficient when you compare to what other competitors offer.
  • Outdated model, included due to popular demand.

User Rating: 

3.4 out of 5 stars (3.4 / 5)

10

Rheem Performance Platinum 9.5 GPM Natural Gas High Efficiency Indoor Tankless Water Heater

  • Fuel Type: Natural Gas
  • Application Type: whole house
  • Location: Outdoors
  • GPM: 9.5
  • Energy Efficiency:
  • Size: 37 x 21 x 13 inches
  • Weight: 84 pounds
  • Display: Digital

This model of tankless heater comes in both electric tankless and gas tankless options which gives you the flexibility of choice. The gas brand has a capacity of between 29 to 75 gallons and an energy efficiency of 70%.

Also, the gas brand comes in different venting options including atmospheric, power vent and draft vent. The electric brand has a capacity of between 40 to 5o gallons and an energy efficiency of up to 95%

The heating element has a premium grade anode which protects it against corrosion thus ensures the longevity of the product. On top of that, it has a pressure and temperature relief valve which enhances its efficiency.

PROS:
  • Easy to install
  • Extremely efficient system
  • Comes with a recirculation pump kit which minimizes heat loss
  • Consists of a hot start programming system that reduces water bursts
  • Has a water-saving program, which helps in water conservation. It can save up to 1,100 gallons a year.

CONS:
  • N/A

User Rating: 

5 out of 5 stars (5 / 5)

 

Conclusion

The purpose of this review is to help you make an informed decision when selecting a RHEEM brand of tankless water heater.

These models have proven to have positive feedback from its users and puts you in a higher chance of customer satisfaction when considering them as your options!