Are you trying to find rheem tankless hot water heaters among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!
We investigated and evaluated a number of the top-selling rheem tankless hot water heaters on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 11 hours of research and did 60 rheem tankless hot water heaters tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!
An overview of our top picks
Table of contents
The best rheem tankless hot water heaters you can buy today
- 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
- 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
- External adjustable digital thermostatic control with LED display (+/1 degree accuracy
- Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
- Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
- 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head – 1.5 GPM
- Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up to 3.17 GPM
- 54 A
- 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
- Flow rate of 0.4 - 9.5 GPM
- Available temperature settings range from 100 to 140F (default setting of 120F)
- Includes electric ignition
- Covered under 1 year labor, 15 year heat exchanger, and 5 year parts manufacturer warranties
- Width 17-11/16-in
- 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
- Continuous Hot Water & Comfort When Needed – Provides enough hot water for your entire house, even when using multiple applications such as a shower and dishwasher
- Save on Energy Costs – High Efficient Water Heater only runs when needed
- Save Water– Water Saving Setting saves up to 1,100 gallons of water per year
- Hot-start programming keeps the water heater in a ready state, avoiding any cold-water bursts
- Save Space - New smaller size, 19%, and reduced weight by 22% compared to the previous model for easy installation and space savings
- External digital thermostatic control with LED display (+/1 degree accuracy)
- Most advanced self-modulation, adjust power to meet hot water demand
- Durable Copper immersion three heating elements, field Serviceable
- Simple installation – bottom 3/4 inch NPT water connections
- Threaded for easy replacement, simple installation, digital temperature display
- 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
- Continuous Hot Water & Comfort When Needed – Provides enough hot water for your entire house, even when using multiple applications such as a shower and dishwasher
- Save on Energy Costs – High Efficient Water Heater only runs when needed
- Save Water– Water Saving Setting saves up to 1,100 gallons of water per year
- Hot-start programming keeps the water heater in a ready state, avoiding any cold-water bursts
- Leak Protection – LeakGuard Leak Detection & Prevention protects your home from water damage that detects any internal leak, both large or small
- Push-button ON/OFF control with LED temperature display
- 6.5 kW Model Flow Rate: up to 1.0 GPM
- Perfect for 1 or 2 sinks
- Bottom 1/2" NPT water connections
- On demand, consistent and continuous hot water
- Continuous Hot Water & Comfort When Needed – Provides enough hot water for your entire house, even when using multiple applications such as a shower and dishwasher
- Save on Energy Costs – High Efficient Water Heater only runs when needed
- Save Water– Water Saving Setting saves up to 1,100 gallons of water per year
- Hot-start programming keeps the water heater in a ready state, avoiding any cold-water bursts
- Leak Protection – LeakGuard Leak Detection & Prevention protects your home from water damage that detects any internal leak, both large or small
- Continuous Hot Water & Comfort When Needed – Provides enough hot water for your entire house, even when using multiple applications such as a shower and dishwasher
- Save on Energy Costs – High Efficient Water Heater only runs when needed
- Save Water– Water Saving Setting saves up to 1,100 gallons of water per year
- Hot-start programming keeps the water heater in a ready state, avoiding any cold-water bursts
- Leak Protection – LeakGuard Leak Detection & Prevention protects your home from water damage that detects any internal leak, both large or small
- Exclusive Water Savings technology conserving up to 1, 100 gallons per year
- 157, 000 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 outdoors with freeze protection up to -30 degrees
- Fuel Type: Natural Gas
- Continuous Hot Water & Comfort When Needed – Provides enough hot water for your entire house, even when using multiple applications such as a shower and dishwasher
- Save on Energy Costs – High Efficient Water Heater only runs when needed
- Save Water– Water Saving Setting saves up to 1,100 gallons of water per year
- Hot-start programming keeps the water heater in a ready state, avoiding any cold-water bursts
- Save Space - New smaller size, 19%, and reduced weight by 22% compared to the previous model for easy installation and space savings
- Energy Efficient Continuous Hot Water for the Whole Home
- Low operating cost - High energy efficiency and water savings setting
- Space Savings - Compact, space-saving design. Perfect for a tank replacement.
- Water & Gas Leak Detection will shut down unit and provide an error code
- For use indoor only
- Continuous Hot Water & Comfort When Needed – Provides enough hot water for your entire house, even when using multiple applications such as a shower and dishwasher
- Save on Energy Costs – High Efficient Water Heater only runs when needed
- Save Water– Water Saving Setting saves up to 1,100 gallons of water per year
- Hot-start programming keeps the water heater in a ready state, avoiding any cold-water bursts
- Save Space - New smaller size, 19%, and reduced weight by 22% compared to the previous model for easy installation and space savings
- Continuous Hot Water & Comfort When Needed – Provides enough hot water for your entire house, even when using multiple applications such as a shower and dishwasher
- Save on Energy Costs – High Efficient Water Heater only runs when needed
- Save Water– Water Saving Setting saves up to 1,100 gallons of water per year
- Hot-start programming keeps the water heater in a ready state, avoiding any cold-water bursts
- Leak Protection – LeakGuard Leak Detection & Prevention protects your home from water damage that detects any internal leak, both large or small
- EcoNet is the Brains of Rheem Smart Air and Water Products, using the latest in sensor technology, the EcoNet Smart Monitoring System offers a new level of protection, comfort and energy savings
- Flow rate range from 0.26 GPM minimum to 7 GPM maximum flow rate
- Temperature varies from 80F minimum to 140F maximum temperature, preset at 120F from the factory
- Electronic ignition requires 200 watts, and provides reliable ignition for many years
- Constructed from copper and stainless steel for rugged durability
- 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
- Reduces Energy Consumption - Automatically adjusts the amount of energy required to heat the water you need
- Reduces Energy Consumption - Automatically adjusts the amount of energy required to heat the water you need
- Easy, Convenient Control –Easily adjust water temperature ranging from 85˚F–140˚F
How to choose a good rheem tankless hot water heaters
Does the idea of finding a fantastic rheem tankless hot water heaters make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!
Your presence here indicates that you are interested in rheem tankless hot water heaters. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top rheem tankless hot water heaters products available right now. You might be wondering how we came up with the list. How was this buying guide developed?
First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top rheem tankless hot water heaters on the market right now!
The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:
Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top rheem tankless hot water heaters brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.
Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top rheem tankless hot water heaters based on those.
Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.
Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.
Customer ratings: Would it be accurate to suggest that the rheem tankless hot water heaters were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.
Customer Reviews: Like ratings, provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.
Seller Rank: This is very intriguing! Not only do you need a good rheem tankless hot water heaters, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.
Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your rheem tankless hot water heaters.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting rheem tankless hot water heaters for months and years to come.
Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.
Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.
These are the standards by which we selected our rheem tankless hot water heaters. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.
Why should you believe us?
There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what rheem tankless hot water heaters should you purchase in 2022?
This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on rheem tankless hot water heaters.
