Rheem Hybrid Water Heater Review: What You Should Know About Them

A water heater is a water heater, right? Well, you wouldn’t be searching for a Rheem hybrid water heater review if that were the case. So, you probably have cost savings on your mind and want to know how Rheem hybrid water heaters stack up against the competition.

You might even be wondering how a hybrid water heater differs from other kinds of water heaters. Well, there’s a lot of technical information related to how hybrid water heaters work, but the bottom line is they’re more energy-efficient.

And even though they’re more expensive than other types of water heaters, they’ll save you money in the long run. The question is, how do you know if a Rheem hybrid water heater is right for you? Well, our Rheem hybrid water heater reviews are a great place to start.

An essential part of any Rheem Hybrid Water Heater review is knowing the specifics of Rheem’s line of hybrid water heaters.

Rheem is well-respected in the industry as a manufacturer of quality water heaters. They’ve been making residential gas and water heaters since the 1930s. And they were the first manufacturer to bring a hybrid electric heat pump water heater to market, introducing their newest innovation in 2009.

Since then, they’ve continued to innovate by adding new technologies to their water heaters, making them the most efficient on the market today.

The Hybrid Water Heater of the Future

So, if you’re looking for a high-tech, highly efficient, and quiet hybrid water heater that will reduce your energy costs, Rheem is at the top of their field.

Rheem has two lines of electric hybrid water heaters: the Professional Prestige Series and the Performance Platinum Series. Both series’ offer water heaters with 50-, 65-, and 80-gallon capacities. Rheem Performance Platinum reviews are generally positive.

So, if you’re looking for a high-tech, highly efficient, and quiet hybrid water heater that will reduce your energy costs, Rheem is at the top of their field.

However, the only difference between the two is that the Professional Prestige Series has options to work with both 15 and 30 amp circuit breakers. The Performance Platinum Series only works with 30 amp circuit breakers.

In addition, both series’ have high-efficiency ratings ranging from 3.55 on the 50-gallon tank to 3.7 on the 80-gallon tank. Plus, both series’ feature EcoNet technology, which allows you to operate the heater from a smartphone.

But why else should you choose a Rheem Hybrid Water Heater?

What People Are Saying?

No Rheem hybrid water heater review would be complete without knowing what customers have to say about the product.

The majority of people who have purchased a Rheem hybrid water heater are highly satisfied. They rave about the heater’s performance and energy efficiency.

Many appreciate how easy it is to use the smartphone app with the heater. But most of all customers love their lower energy bills since they installed the unit in their home.

However, some customers noted that the heater is difficult to install, especially for do-it-yourselfers. And others commented that the units sometimes have control board and sensor issues.

Overall, though, most customers were happy with their purchase.

Rheem Hybrid Water Heater vs. The Competition

Let’s compare the Rheem Performance Platinum Electric Hybrid Water Heater to similar models from A.O. Smith and Steibel Eltron.

The Rheem Hybrid Water Heater Review: How We Did It


We researched information on hybrid water heaters to learn how they differ from other water heaters from heating and plumbing experts such as Bradbury Brothers, Modern Plumbing Industries Inc, and Adams and Son Plumbing.

In addition, we checked with the U.S. Department of Energy, This Old House, and Family Handyman to learn how hybrid water heaters work, and why they’re so energy efficient.

Plus, we researched manufacturers of hybrid water heaters using a list from Consumer Reports and checked manufacturer websites and home appliance store websites to compare various features. Specifically, we analyzed energy efficiency ratings, operating modes, and customer reviews.

Rheem Performance Platinum Electric Hybrid Water Heater

The Rheem Performance Platinum Electric Hybrid Water Heater is the creme de la creme of hybrid water heaters. Not only is this water heater super efficient with a 3.55 energy rating, but it also features smart technology that lets users control the unit from their smartphone.

This means you can operate and check on your water heater without having to go into the basement or garage if you need to change the settings.

Plus, it has a water boost feature which makes more hot water available whenever you need it. For example, when your teenager decides to take an hour-long shower before everyone else.

In addition, this unit has five different operation modes, a water sensor, and an anode rod that helps extend the water heater’s life.

Product specifications

  • 50 gallons
  • 3.55 UEF rating
  • LED screen with built-in water sensor
  • EcoNet WiFi-connected technology
  • Five operation modes including, energy, heat pump, high demand, electric, and vacation
  • 61 inches tall
  • 10-year warranty


  •  High 3.55 – 3.70 UEF reduces operating cost 
  •  ENERGY STAR® rated


  •  Delivers hot water faster than most standard electric water heaters – 67 gallons first-hour delivery for 50-gallon model, 75 gallons FHD for 65-gallon model, and 89 gallons FHD for 80-gallon model.  
  • Ambient operating range: 37-145° F is widest in class, offering more days of HP operation annually; designed to meet Northern Climate Spec (Tier 3).

Easy Installation 

  •  Easy access side connections 
  •  Quick access to electrical junction box 
  •  Easily replaces a standard electric water heater


  •  LCD Screen with built-in water sensor alert with audible alarm 
  •  Integrated EcoNet® WiFi-connected* technology and free mobile apps give users control over water systems, allowing for customizable temperature, vacation settings, energy savings, and system monitoring at home or away. Visit Rheem.com/ EcoNetConnect 
  • The water sensor detects water outside of the unit and sends an alert via the free Rheem EcoNet® mobile app to the homeowner

Control Settings  

  • Energy Saver  
  • Heat Pump 
  •  High Demand  Electric 
  •  Vacation: 2-28 days (or placed on hold indefinitely)


  • Premium grade anode rod with resistor extends the life of the tank
  •   3/4″ NPT water inlet and outlet;
  •  3/4″ condensate drain connections
  •   Incoloy stainless steel resistor elements 
  •  Dry-fire protection 
  •  Easy access, top-mounted washable air filter 
  •  2″ Non-CFC foam insulation 
  •  Enhanced flow brass drain valve  
  • Temperature and pressure relief valve installed  
  • Low lead compliant


10-Year limited warranty for tank and parts, 1-year full in-home labor warranty See Residential Warranty Certificate for complete information Units meet or exceed ANSI requirements and have been tested according to D.O.E. procedures. 

Units meet or exceed the energy efficiency requirements of NAECA, ASHRAE standard 90, ICC Code, and all state energy efficiency performance criteria.

The Rheem 50 Gallon Performance Platinum Electric Hybrid Water Heater rates 4.5 out of 5 stars at Home Depot and 4.4 out of 5 stars on the Rheem website.

Stiebel Elt ron Accelera E Heat Pump Water Heater


  • Heat Pump Water Heaters, not ‘’hybrids”
  • Designed to provide comfort plus the lowest possible energy costs
  • Reduces hot water costs by up to 80%
  • Engineered in Germany, Stiebel Eltron heat pump water heaters have been the largest seller in Europe for over 30 years
  • Backed by a 1o-year warranty


At Stiebel Eltron, the main goal is to provide energy efficiency in addition to comfort. [And, of course, engineering and manufacturing excellence.]

This kind of heat pump water heaters is designed from the ground up to rely on the heat pump, not on the backup element. We don’t call the Accelera heat pump water heaters “hybrids.” They’re not.

The tanks are large because large is the best for a heat pump water heater. Even a “50-gallon” heat pump water heater is actually 58 gallons. Large capacity means the water you are using, as much as possible, was heated the most efficient way — with the heat pump.

The tanks are super-insulated because minimizing standby losses means less energy is wasted. In order to deliver all the energy savings a heat pump water heater can, in addition to all the hot water comfort it holds, it makes no sense to skimp on the insulation and increase energy consumption.

 A single resistance element is used for backup water heating during times of high demand.  The single booster element is located in the most efficient place — at the very top of the tank because that’s where the hot water is drawn from.

So, These are not “hybrids,” They are Stiebel Eltron heat pump water heaters

With decades of heat pump experience, it has been obvious to us that a heat pump water heater ought to make hot water with the heat pump, and not with a backup element. This simple solution seems to have escaped others. Yet it has made our heat pump water heater the largest seller in Europe for over 30 years.

Heat pump water heating technology means the amount of energy needed to heat water is greatly reduced compared to conventional water heaters. Until now, the best “high efficiency” water heaters only approach making the equivalent of 1 watt of hot water for every watt of energy they consume. Heat pump water heater technology redefines water heater efficiency. For every watt, an Accelera’s compressor and fan uses, the equivalent of 3-5 watts of hot water are generated.

In warm climates, an Accelera® is placed either in the garage, where it uses the heat from the outside air to make hot water or inside the house, where it helps with the air conditioning load. In cooler climates, the unit is typically placed in the basement where it also acts as a dehumidifier. You get hot water at a discount plus a drier basement as well.

What Is the Difference Between “Hybrid” Water Heaters And Accelera Heat Pump Water Heaters

Heat Pump Mode

“Hybrid” Water Heater:

In the case of Hybrid Water Heaters, the most efficient mode provides the greatest savings they are capable of. The water heater operates only with the heat pump. “Hybrids” must be set to the correct mode in order to either save energy or provide comfort.

Accelera Heat Pump Water Heater:

Accelera is engineered to satisfy 90% of hot water needs through the use of the heat pump alone. In cases of high demand, one specially designed electric ‘’booster” element is located at the very top of the tank. Positioned near the hot water draw point, the element has been designed and engineered to run as little as possible so that comfort is maintained and savings maximized. 

Hybrid Mode

“Hybrid” Water Heater:

Two standard electric elements activate for fast water temperature recovery. The system allows the heat pump to work once demand has been met via electric elements.

Accelera Heat Pump Water Heater:

Accelera is designed to satisfy hot water needs without having to pick a setting. There is nothing to remember to choose in order to have both comfort and savings.

High Demand Mode

“Hybrid” Water Heater:

Two standard electric elements activate sooner and stay no longer than in their ‘’hybrid” mode.

Accelera Heat Pump Water Heater:

Accelera is engineered to work as a harmonious whole to offer comfort and savings without having to ask, “what setting do I need to choose today?” IN cases of extraordinarily high demand the Accelera 220 E has a user-accessible booster function that will engage the booster element.

Standard Mode

“Hybrid” Water Heater:

The heat pump is disabled and, just like a standard electric tank, two electric elements heat the water. “Hybrids don’t have active defrost and must enable this mode so the evaporator can defrost. This mode is also selected if the heat pump fails. 

Accelera Heat Pump Water Heater:

They engineered the Accelera so the heat pump doesn’t need to be disabled for a defrost cycle. They also engineered for a heat pump water heater if you’re just going to end up with a standard electric tank?

Vacation Mode

“Hybrid” Water Heater:

The water heater maintains a very low temperature in the tank then reheats the water the day before you return.

Accelera Heat Pump Water Heater:

Our super-insulated tank keeps water hot in an Accelera during a 2-week vacation for less than $4. No one has to worry if vacation mode was set to wake up on the correct day.

The Stiebel Eltron Accelera E Heat Pump Water Heater is not a “hybrid” water heater but operates on the same heat pump method as hybrid models. The difference is that this water heater works on “hybrid” mode all the time, meaning you don’t have to choose the setting like on other models.

However, this German-made water heater is the most expensive of those listed here — almost twice the price. In addition, it is not as energy efficient as the other models coming in with a 3.05 UEF rating.

It also has an automatic booster mode which will detect high usage and adjust accordingly. In fact, there are no operation modes available with this 58-gallon tank water heater. And the available functions it does have are controlled by an LED interface on the tank body.

Home Depot users give this water heater 4.2 out of 5 stars. This product has not been rated on Amazon or the manufacturer’s website.

A.O. Smith Voltex Hybrid Electric Water Heater

Title Here
  • 199,000 max input (BTU)
  • Benchmark temperature stability achieved with an active bypass

  • High energy efficiency
  • Quiet operation
  • Integrated smart technology
  • Five operation modes
  • Water boost feature


  • Expensive
  • Difficult installation


Step Into The Future With A Rheem Hybrid Water Heater

There’s no comparison between the Rheem hybrid water heater and the other models. It’s super-efficient, and the integrated smart technology puts it far above the rest. Plus, it’s the lowest-priced unit here even with all of its advanced features.

And while it might cost more upfront, the cost-saving benefits are well worth the investment in the long run. We hope our Rheem hybrid water heater review helped inform you to help in your purchasing decisions.

When buying a hot water system, it’s essential to consider which choice will not be acceptable for you and which one will match your bag. A flawless example of both efficiency and value for money is the performance Rheem platinum hybrid water heater. 

Platinum Hybrid Water Heater on Rheem Performance 

The revolutionary Rheem hybrid radiator allows consumers to spend less for the production of hot water despite having to reduce their use. In reality, more liters of heated water are provided at a lower price by the Rheem Performance Platinum.

What Is a Hybrid Water Heater?

Hybrid, sometimes called the freshwater warmers of the heat pump, switches over high-demand periods to electrical resistance standard heat. It employs electric models to provide a solution that meets your every demand and combines them using heat pump technology. 

Get prepared with this model to save money. The hot water gallons that the equipment generates will not blow up your power bill as well as the heated hot water you have access to will not influence severe winter months or times of wide usage. 

Advantages of  Using This Device

More Dollar Electricity

With this device, you may save both money and power. Draw less power and save money by paying for what you have used to heat water for your home. 

With ENERGY STAR accreditation as well as a high UEF, this highly efficient water heater is supported, which enables you to reap benefits at the end of the month. 

This 50-gallon model comes for an amazing 67 gallons during the first hour. The delivery is faster than a typical immersion heater.

In addition, Rheem estimates that over 10 years with their hybrid water heater, you may save up to $4,750 in energy costs. The 3,55 UEF guarantees that you achieve a long-term saving and an appliance which eventually pays off in a period of three years, although this is no doubt a costly in-store purchase. 

Keep It in Check 

This Rheem unit works in hybrid standard mode to manage water requirements with energy use efficiently. However, with the following parameters operating modes are available:

  • Saver Energy
  • Compressor for heat
  • High request
  • Electricity
  • Holidays; 2-28 days or permanently held

You may adjust the configuration and effectiveness according to your demands, as you can see. Keep in mind, however, that when the conventional heating components are used to rely better on a hot water output, the efficiency of the product is readily impaired. 

Integrating of Smart Home 

It’s quicker than imagined to include your Rheem hybrid heater performance in your homes. 

The item has an LCD screen, an integrated water detection warning, and an audio alert. This is the highlight of user-friendly water heater innovation and certainly places this Rheem device in the race for the finest hybrid hot water system.

In addition, incorporating Econet the user may handle the parameters and use them manually and via the wireless connection technology. The Rheem free mobile app allows customers to regulate the heating, holiday conditions, energy adjustments, and more on a cell device!

The built-in pressure sensor also warns you about the water from outside via the Rheem Econet mobile app. You will thus be aware of that leak or the malfunctioning of the device immediately. If we can tell ourselves so, Nifty!

Brief About Electric Water Heaters 

For some time now, conventional electric water heaters have been the right choice. Certainly, you have a fair number of worthwhile advantages. They provide inexpensive maintenance fees and an advance charge which makes them desirable.

Some electronic boilers, however, have greater energy expenses monthly. That’s why they create more energy For home heating water than its hybrid fellows. The money spent on electric tank purchases might thus be spent on expensive monthly expenses at a later date.

Furthermore, they might not be the greatest solution in places susceptible to power outages. Your heater will not heat water and hence will cause discomfort.

Traditional electric water heaters Keep in their storage tank up to 80 gallons of hot water. Whenever the boiler is utilized, ice water loads up to the pre-set temperature from the bottom of the tank. This guarantees that the tank always has hot water but also increases the use of power.

Whereas hybrid heating systems are often made in small dimensions like 30 or 50 gallons, Rheem manufactured its hybrid method in three capacity options. You may select the same volume of hot water as your appropriate for determining for 50, 65, and 80-gallon units.

Final Thoughts 

The purpose of this hybrid water heater review is to provide the consumer with relevant information. If a hybrid tankless heater is purchased for your house, a sufficient amount of study must be carried out on this product to prevent unanticipated shocks.

However, the unit has outstanding skills and attributes. Its excellent clean energy and intelligent home interface make it one of the market’s top hybrid hot water radiators. 

Finally, groundbreaking, cost-effective equipment for smart homes and discriminating consumers is the Rheem hybrid water heater.

2 thoughts on “Rheem Hybrid Water Heater Review: What You Should Know About Them”

  1. i’ve had The Rheem Performance Platinum Electric Hybrid Water Heater installed for approximately 8 months. It was installed in an addition to the house which has the cloths washer, a shower and 2 vanities with hot and cold water. The problem is we never know if we are going to have hot water available. The shower works the best when I take a night time shower. plenty of hot water without issue. My wife takes a morning shower and as often as not, the hot water is slightly warm at best. The vanities can run the hot water for several minutes and never get more than slightly warm. Sometimes the hot water can be turned off and turned on in about a minute and we’ve got hot water! Turn it off and wait a minute and we’re back to warm water. I’m trying to contact the Rheem service but I’ve waited and waited for a tech to come on to talk without success. I’ve just about reached the point to replace the hot water heater with the old reliable electric hot water heater.


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