Best Rheem Tankless Water Heaters (Dec. 2024) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater

9.8
CPR Score
Top 2

Rheem 18kW 240V Tankless Electric Water Heater

9.7
CPR Score
Top 3

Rheem 11kW 240V Tankless Electric Water Heater

9.6
CPR Score
Tips

Here is a Top Rated Rheem Tankless Water Heaters list ranked by CherryPicks, Based on our unbiased evaluations of over 4,478 customer rating and reviews, you can easily compare product features on this page before you buy Rough Plumbing products from this brand.

* CherryPicks.Reviews is reader-supported, Our editor review, and recommend the best products based on extensive data analysis, if you click on the product links, we may earn a commission through qualifying products purchased.

The Best Rheem Tankless Water Heaters Rated by CherryPicks

Market Overview
Rheem Tankless Water Heaters Reviewed
  • Reviews Analyzed: 4,478 Items
  • CPR Avg. Rating: 8.5 / 10
30 Products Evaluated
  • Highest Price: $2,983.99
  • Lowest Price: $189.00
  • Avg. Price: $968.23
Price Disclaimer

Top 30 Rheem Tankless Water Heaters on Amazon (Verified You can Buy)

Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater

Rheem
RTGH-95DVLN-2
27.5 x 9.75 x 28.5 Inches
77.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Show More

Rheem 18kW 240V Tankless Electric Water Heater

Rheem
RTEX-18
18.5 x 14.5 x 3.5 Inches
14.78 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
CARESAN -
ALCRSOAN -
CASA CAYOS -

Features

External digital thermostatic control with LED display (+/1 degree accuracy)
Most advanced self-modulation, adjust power to meet hot water demand
Show More

Rheem 11kW 240V Tankless Electric Water Heater

Rheem
RTEX-11
12.63 x 8.25 x 3.63 Inches
7.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Plumber's Paradise -
CASA CAYOS -
AXY Co -

Features

ON/OFF Dial Control with adjustable digital temperature display
Self-modulating power control
Show More

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

Rheem
RTEX-13
12.63 x 8.25 x 3.63 Inches
0.0006 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
PRODUCT X MAS 6,745
CARESAN -
ALCRSOAN -
CASA CAYOS -
Bullit Sales -

Features

External adjustable digital thermostatic control with LED display (+/1 degree accuracy
Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
Show More

Rheem 3.5kW 120V Point of Use Tankless Electric Water Heater

Rheem
RTEX-04
10.9 x 5.88 x 2.75 Inches
4.5 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Compact and stylish with digital temperature control in increments of 1f ranging from 80f to 140f
RTEX04 and RTEX06 only show output temperature and are non thermostatically controlled

Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray

Rheem
RTEX-24
18.25 x 14.5 x 3.5 Inches
17.8 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
GM Not Mo -

Features

ON/OFF Dial Control with adjustable digital temperature display
Self-modulating power control
Show More

Rheem Mid-Efficiency 8.4GPM Outdoor Natural Gas Tankless Water Heater

Rheem
RTG-84XLN-1
8.88 x 13.88 x 23.63 Inches
57.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Exclusive Water Savings technology conserving up to 1, 100 gallons per year
157, 000 BTU (gas consumed per hour)
Show More

RHEEM RTGH-84DVLN-2 Natural Gas Condensing Tankless Water Heater, Silver , Gray

Rheem
RTGH-84DVLN-2
27.5 x 9.8 x 18.5 Inches
77.9 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
PJS Superstore -

Features

Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Show More

Rheem Mid-Efficiency 7.0GPM Indoor Liquid Propane Tankless Water Heater

Rheem
RTG-70DVLP-1
9.88 x 13.88 x 25.63 Inches
62.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Continuous Hot Water – never run out of hot water, even with back-to-back showers
Tankless Gas Water Heaters are cost saving and energy efficient
Show More

Rheem Prestige Condensing Tankless Outdoor Natural Gas Water Heater 9.5 GPM - RTGH-95XLN-2

Rheem
RTGH-95XLN-2
27.5 x 9.75 x 28.5 Inches
77.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Southern Connect -

Features

Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Show More

Rheem RTG-70XLP-1 Tankless Water Heater, Grey, Grey

Rheem
RTG-70XLP-1
9.88 x 13.88 x 25.63 Inches
54.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Amazon Warehouse 1

Features

Continuous Hot Water – never run out of hot water, even with back-to-back showers
Tankless Gas Water Heaters are cost saving and energy efficient
Show More

Rheem RTEX-27 240V 3 Heating Chambers Residential Tankless Water Heater

Rheem
RTEX-27
4.0 x 18.0 x 19.0 Inches
17.8 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
AXY Co -
GP Conservation -

Features

External digital thermostatic control with LED display (+/1 degree accuracy)
Most advanced self-modulation, adjust power to meet hot water demand
Show More

Rheem Mid-Efficiency 8.4 GPM Outdoor Liquid Propane Tankless Water Heater

Rheem
RTG-84XLP-1
8.88 x 13.88 x 23.63 Inches
54.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Exclusive Water Savings technology conserving up to 1, 100 gallons per year
157, 000 BTU (gas consumed per hour)
Show More

Rheem Tankless Indoor Liquid Propane Water Heater Mid-Efficiency 9.5 GPM

Rheem
RTG-95DVLP-1
9.88 x 13.88 x 25.63 Inches
62.0 pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Continuous Hot Water – never run out of hot water, even with back-to-back showers
Tankless Gas Water Heaters are cost saving and energy efficient
Show More

Rheem Prestige High Efficiency Condensing Tankless Indoor Liquid Propane Water Heater, RTGH-68DVLP-2 6.8 GPM

Rheem
RTGH-68DVLP-2
27.5 x 9.75 x 28.5 Inches
77.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Wholesale Society (Serial Numbers Recorded) -

Features

Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Show More

Rheem Prestige Condensing Tankless Gas Indoor Natural Gas Water Heater With Built-in Recirculation 10.0 GPM - RTGH-RH10DVLN

Rheem
RTGH-RH10DVLN
14.8 x 17.3 x 28.7 Inches
85.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Show More

Rheem Mid-Efficiency 7.0GPM Outdoor Natural Gas Tankless Water Heater

Rheem
RTG-70XLN-1
13.88 x 8.88 x 23.63 Inches
54.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Big Frog Supply 5,482

Features

Continuous Hot Water – never run out of hot water, even with back-to-back showers
Tankless Gas Water Heaters are cost saving and energy efficient
Show More

Rheem Prestige Condensing Tankless Outdoor Natural Gas Water Heater 9.0 GPM - RTGH-90XLN-2

Rheem
RTGH-90XLN-2
27.5 x 9.75 x 28.5 Inches
77.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Show More

Rheem Prestige Condensing Tankless Indoor Natural Gas Water Heater 6.8 GPM - RTGH-68VLN-2

Rheem
RTGH-68DVLN-2
27.5 x 9.75 x 28.5 Inches
77.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Show More

Rheem Prestige Condensing Tankless Gas Indoor Natural Gas Water Heater With Built-in Recirculation 11.0 GPM - RTGH-RH11DVLN

Rheem
RTGH-RH11DVLN
14.8 x 17.3 x 28.7 Inches

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Show More

Rheem Prestige Condensing Tankless Indoor Liquid Propane Water Heater with Built-in Recirculation 10.0 GPM - RTGH-RH10DVLP

Rheem
RTGH-RH10DVLP
17.5 x 28.7 x 14.8 Inches
85.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Show More

Rheem RTGH-95DVLP-2 Tankless Water Heater, Grey, Grey

Rheem
RTGH-95DVLP-2
27.5 x 9.75 x 28.5 Inches
77.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Best of Home -

Features

Exclusive Water Savings technology conserving up to 1, 100 gallons per year
199, 900 BTU (gas consumed per hour)
Show More

Rheem 8kW 240V Tankless Electric Water Heater

Rheem
RTEX-08
12.6 x 8.25 x 3.63 Inches
8.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
FFON SSON -

Features

ON/OFF Dial Control with adjustable digital temperature display
Self-modulating power control
Show More

Rheem Prestige Condensing Tankless Outdoor Liquid Propane Water Heater 9.0 GPM - RTGH-90XLP-2

Rheem
RTGH-90XLP-2
27.5 x 9.75 x 28.5 Inches
77.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Show More

Rheem Prestige High Efficiency Condensing Tankless Indoor Natural Gas Water Heater, RTGH-90DVLN-2 9.0 GPM

Rheem
RTGH-90DVLN-2
27.5 x 9.75 x 28.5 Inches
77.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Show More

Rheem Tankless Outdoor Natural Gas Water Heater Non-Condensing 9.5 GPM

Rheem
RTG-95XLN-1
9.88 x 13.88 x 25.63 Inches
54.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Big Frog Supply 5,482

Features

Continuous Hot Water – never run out of hot water, even with back-to-back showers
Tankless Gas Water Heaters are cost saving and energy efficient
Show More

Rheem Prestige High Efficiency 9.5GPM Outdoor Liquid Propane Tankless Water Heater

Rheem
RTGH-95XLP-2
27.5 x 9.75 x 28.5 Inches
77.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Big Frog Supply 5,482
DataAlchemy -
Data Alchemy -

Features

Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Show More

Rheem Tankless Outdoor Liquid Propane Gas Water Heater Non-Condensing 9.5 GPM

Rheem
RTG-95XLP-1
13.88 x 8.88 x 23.68 Inches
57.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Big Frog Supply 5,482

Features

Continuous Hot Water – never run out of hot water, even with back-to-back showers
Tankless Gas Water Heaters are cost saving and energy efficient
Show More

Rheem Prestige Condensing Tankless Indoor Liquid Propane Water Heater with Built in Recirculation 11.0 GPM - RTGH-RH11DVLP, Gray

Rheem
RTGH-RH11DVLP
14.8 x 17.3 x 28.7 Inches
40.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Show More

Rheem Prestige Condensing Tankless Outdoor Natural Gas Water Heater 6.8 GPM - RTGH-68XLN-2

Rheem
RTGH-68XLN-2
27.5 x 9.75 x 28.5 Inches
77.0 Pounds

Ratings for Rheem (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Exclusive Water Savings technology conserving up to 1, 100 gallons per year
120, 000 BTU (gas consumed per hour)
Show More

Top 10 Rheem Tankless Water Heaters - Verified to Buy (Apr. 2024)

Related Rheem Tankless Water Heaters Guides

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Top 10 Rheem Tankless Water Heaters Sellers: CPR Seller Rank List

CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.

Rank Name Yearly Feedbacks Avg. Ratings
🥇 Amazon Warehouse 4,312,804 4.5
🥈 Big Frog Supply 967 4.6
🥉 PRODUCT X MAS 819 4.9
4 DataAlchemy 570 4.4
5 Data Alchemy 454 3.6
6 Amazon.com 385 4.7
7 Plumber's Paradise 196 4.8
8 PJS Superstore 175 4.6
9 Southern Connect 98 4.5
10 AXY Co 82 4.9
View or download top Rheem Tankless Water Heaters seller & rating report
Amazon Warehouse [4312804] Big Frog Supply [967] PRODUCT X MAS [819] DataAlchemy [570] Data Alchemy [454] Amazon.com [385] Plumber's Paradise [196] PJS Superstore [175] Southern Connect [98] AXY Co [82] Amazon Warehouse 100% Big Frog Supply 0% PRODUCT X MAS 0% DataAlchemy 0% Data Alchemy 0% Amazon.com 0% Plumber's Paradise 0% PJS Superstore 0% Southern Connect 0% AXY Co 0%

[Get] Rheem Tankless Water Heaters Deals (✅Exclusively for Prime)

What does "Amazon Fulfilled" Mean?

Amazon Fulfilled refers to products handled by Amazon's logistics, which indicates that the product is stored, packed, and shipped by Amazon from one of its fulfillment centers.

When you order a product that is "Amazon Fulfilled," Amazon takes care of the storage, packing, shipping, and customer service for that product. This often ensures quicker delivery and better customer service compared to products that are not fulfilled by Amazon. It also means that the product is eligible for Amazon's return policy.

What does "Prime" Mean?

"Prime" refers to Amazon Prime Member (Join Amazon Prime Now), which indicates eligibility for Prime benefits. When you see "Prime" next to a product on Amazon, This generally means that if you are  an Amazon Prime member, you can get free two-day shipping on that product, and sometimes even same-day or one-day shipping depending on your location.

Prime members also have access to other benefits, including 2-Day ShippingExclusive Member DealsPrime VideoBuy With PrimeAmazon MusicPrime Gaming, and more.

Shop Prime Rheem Tankless Water Heaters Deals

What does "Free Shipping" Mean?

"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.

Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.


Why Should You Trust Us?

Now hundreds and thousands of Rough Plumbing supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best Rheem Tankless Water Heaters to buy for new December 2024?

CherryPicks’s Methodology for Evaluating Rheem Tankless Water Heaters

We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Rough Plumbing items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.

We collected and analyzed 162 of Rheem Tankless Water Heaters reviews based on our selection criteria. It helped us shortlist the top qualified and rated Rheem Tankless Water Heaters for Rough Plumbing, We found that most customers choose Rheem Tankless Water Heaters with an average price of $968.23, and the top brands are Rheem

Then our expert-level editors reviewed all those quality items and selected the top 30 Rheem Tankless Water Heaters for you, We have researched hundreds of sellers and picked the top sellers for Rough Plumbing, including Amazon Warehouse, Big Frog Supply, PRODUCT X MAS, DataAlchemy, Data Alchemy, Amazon.com, Plumber's Paradise, PJS Superstore, Southern Connect, AXY Co, Wholesale Society (Serial Numbers Recorded) And Best of Home. The Rheem Prestige High Efficiency 9.5GPM Indoor Na... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 87 consumers with an average rating of 4.3.

We've helped a lot of satisfied users get the right Tools & Home Improvement product based on their needs, and save lots of time for them to pick Rheem Tankless Water Heaters to buy.


Written By Harrison McDougall

Harrison has got a lot of skills handling gardening tools in the past. He is currently a teacher seeking to share his knowledge in gardening and would be providing us expert reviews on the best home tools to use for gardening and lawns.