Top 10 Best Rheem Tankless Water Heater [2022]

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Our team studied on 47939 reviews available online for Rheem Tankless Water Heater, chose the finest ones and prepared Rheem Tankless Water Heater Reviews for you. It was very difficult to shortlist the ideal Rheem Tankless Water Heater from thousands of products online. However, We tried to make sure that you get only the Best Rheem Tankless Water Heater from our suggestions. Check our listings-:

Best Rheem Tankless Water Heater

Best Rheem Tankless Water Heater

Our team scanned 47939 reviews before putting any suggestions for the rheem tankless water heater in this article.

Comparison Chart of Top 10 rheem tankless water heater

NoProductScoreAction
1Rheem RTGH-RH11DVLP Condensing Tankless Gas Built-in Recirculation Water Heater9.8Buy On Amazon
2Rheem RTGH-84DVLN-2 Professional Prestige Series: 8.4 GPM Indoor Tankless Water Heater9.8Buy On Amazon
3Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater9.6Buy On Amazon
4Rheem Professional Classic Tankless Electric RTEX-08 Water Heater9Buy On Amazon
5Rheem RTG-84DVLN 8.4 GPM Low NOx Direct Vent Tankless Natural Gas Water Heater9Buy On Amazon
6Rheem RETEX-27 Performance 27 kw Self-Modulating 5.3 GPM Electric Tankless Water Heater8.8Buy On Amazon
7Rheem Professional Classic Tankless Electric RTEX-11 Water Heater8.8Buy On Amazon
8Rheem RTEX-24 24kW 240V Electric Tankless Water Heater8.6Buy On Amazon
9Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater8.6Buy On Amazon
10Rheem RTEX-18 18kW 240V Electric Tankless Water Heater8.4Buy On Amazon

1. Rheem RTGH-RH11DVLP Condensing Tankless Gas Built-in Recirculation Water Heater

  • Programmable timer based activation
  • Built-in Recirculation, Reduces Water Waste
  • Manufactured in Mexico

2. Rheem RTGH-84DVLN-2 Professional Prestige Series: 8.4 GPM Indoor Tankless Water Heater

  • Condensing Technology for Greater Efficiency and Significant Energy Savings
  • Residential Temperature Settings: 98°F – 140°F
  • Manufactured in Mexico

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

  • 94-Percent Energy efficient with stainless-steel condensing heat exchanger
  • Intelligent electronic controls designed to increase energy efficiency and safety
  • Third party efficiency listed by AHRI
  • Up to 38-Feet of 3-Inch PVC Pipe or 5-Feet of 2-Inch PVC Pipe
  • Low Nox Version

4. Rheem Professional Classic Tankless Electric RTEX-08 Water Heater

  • ON/OFF Dial Control with adjustable digital temperature display
  • Self-modulating power control
  • 8kW Model Flow Rate: up to 1.95 GPM
  • Side 1/2″ NPT water connections
  • On demand; continous hot water

5. Rheem RTG-84DVLN 8.4 GPM Low NOx Direct Vent Tankless Natural Gas Water Heater

  • Natural Gas Tankless Water Heater
  • Direct Vent Indoor
  • 8.4 gal/min. at 35-Degree Rise
  • UMC-117 remote control and 10-Feet of thermostat wire is included
  • Low Nox Version

6. Rheem RETEX-27 Performance 27 kw Self-Modulating 5.3 GPM Electric Tankless Water Heater

  • Brand New in box. The product ships with all relevant accessories

7. Rheem Professional Classic Tankless Electric RTEX-11 Water Heater

  • ON/OFF Dial Control with adjustable digital temperature display
  • Self-modulating power control
  • 11kW Model Flow Rate: up to 2.68 GPM
  • Side 1/2″ NPT water connections
  • On demand, consistent and continuous hot water

8. Rheem RTEX-24 24kW 240V Electric Tankless Water Heater

  • ON/OFF Dial Control with adjustable digital temperature display
  • Self-modulating power control
  • 24kW Model Flow Rate: up to 5.9 GPM for RTEX-24
  • Bottom 3/4″ NPT water connections
  • On demand, consistent and continuous hot water

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

  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • 199, 900 BTU (gas consumed per hour)
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • Recirculation pump ready kit ready
  • For use indoor only

10. Rheem RTEX-18 18kW 240V Electric Tankless Water Heater

  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Most advanced self-modulation, adjust power to meet hot water demand
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Simple installation – bottom 3/4 inch NPT water connections
  • Threaded for easy replacement, simple installation, digital temperature display

Rheem Tankless Water Heater Buying Guide


Does the thought of finding a great Rheem Tankless Water Heater stress you out? Has your mind been juggling between choices when it comes to buying Rheem Tankless Water Heater in general, specifically regarding which model to choose?
If that’s the case, know that you’re not alone. Many people find it tough to buy the perfect Rheem Tankless Water Heater for themselves. We understand the stress associated with the buying process!
Since you’re here, you are obviously curious about Rheem Tankless Water Heater Reviews. You’ve been bombarded with information, so you need to find a reputable source with credible options before you make any decisions on which product would be best for your needs.
There are many sources that’ll provide you with that information- buying guides or ratings websites, word-of-mouth testimonials from friends or family members, online forums where users share their personal experiences, product reviews specifically found all over the internet and YouTube channels. Only thorough research will ensure that you get the right product.
But that’s not always easy, right? That's why we've taken time to compile a list of the best Rheem Tankless Water Heater in today's market, on your behalf, so that there will be no more worries for you.
How did we come up with the list, you ask? How did we create this buying guide?
  • First, our algorithms collected as much information available about these products from trusted sources.
  • We employed both Artificial Intelligence and large data volaume to validate all collected information.
  • Then our AI ranked them on their quality-to-price ratio using industry-standard criteria that let us pick the best Rheem Tankless Water Heater currently on the market!
The products aren’t chosen randomly. We consider several criteria before assembling a list. Some of the criteria are discussed below-
  1. Brand Value: What happens when you go for a not-so-reputable brand just because the price seems cheap? Well, the chance of getting a short-lasting product goes higher. That’s because the renowned brands have a reputation to maintain, others don’t.
Top Rheem Tankless Water Heater brands try to offer some unique features that make them stand out in the crowd. Thus hopefully, you’ll find one ideal product or another in our list.
  1. Features: You don’t need heaps of features, but useful ones. We look at the features that matter and choose the top Rheem Tankless Water Heater based on that.
  2. Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products of higher specifications, but with the right balance.
  3. Customer Ratings: The hundreds of customers using the Rheem Tankless Water Heater before you won’t say wrong, would they? Better ratings mean better service experienced by a good number of people.
  4. Customer Reviews: Like ratings, customer reviews give you actual and trustworthy information, coming from real-world consumers about the Rheem Tankless Water Heater they used.
  5. Seller Rank: Now, this is interesting! You don’t just need a good Rheem Tankless Water Heater, you need a product that is trendy and growing in sales. It serves two objectives. Firstly, the growing number of users indicates the product is good. Secondly, the manufacturers will hopefully provide better quality and after-sales service because of that growing number.
  6. Value For The Money: They say you get what you pay for. Cheap isn’t always good. But that doesn’t mean splashing tons of money on a flashy but underserving product is good either. We try to measure how much value for the money you can get from your Rheem Tankless Water Heater before putting them on the list.
  7. Durability: Durability and reliability go hand to hand. A robust and durable Rheem Tankless Water Heater will serve you for months and years to come.
  8. Availability: Products come and go, new products take the place of the old ones. Probably some new features were added, some necessary modifications were done. What’s the point of using a supposedly good Rheem Tankless Water Heater if that’s no longer continued by the manufacturer? We try to feature products that are up-to-date and sold by at least one reliable seller, if not several.
  9. Negative Ratings: Yes, we take that into consideration too! When we pick the top rated Rheem Tankless Water Heater on the market, the products that got mostly negative ratings get filtered and discarded.

These are the criteria we have chosen our Rheem Tankless Water Heater on. Does our process stop there? Heck, no! The most important thing that you should know about us is, we're always updating our website to provide timely and relevant information.
Since reader satisfaction is our utmost priority, we have a final layer of filtration. And that is you, the reader! If you find any Rheem Tankless Water Heater featured here Incorrect, irrelevant, not up to the mark, or simply outdated, please let us know. Your feedback is always welcome and we’ll try to promptly correct our list as per your reasonable suggestion.