Stiebel Eltron is a well-established German brand that has been producing heating and cooling solutions for over 90 years. It is particularly known for its electric tankless water heaters, which offer an efficient and cost-effective alternative to traditional water heaters.
By heating water on demand, Stiebel Eltron tankless water heaters eliminate the need for a bulky storage tank, reducing energy waste and saving space.
I’ve reviewed and tested Stiebel’s most popular models to help you find out which is best for your home.
Here’s what I found out.
Stiebel Eltron Tankless Water Heater Models
Stiebel Eltron electric tankless water heaters are available in a range of sizes to accommodate different household needs, from point-of-use models for a single sink or shower to whole-house models that can provide hot water for multiple fixtures simultaneously.
One thing you’ll love about Stiebel Eltron is that ALL of its models come with a seven-year leakage warranty and a three-year parts warranty.
Here’s a list of all Stiebel Eltron electric tankless water heater models that are currently available:
- Whole-house systems: Tempra Plus and Tempra Trend
- Point-of-use systems: DHC and DHX
- Handwashing sink systems: Mini-E Thermostatic and Mini Single
Let’s have a closer look at each of these models.
Tempra Plus: $528–$780
Stiebel Eltron’s Tempra Plus models are high-end electric tankless water heaters designed for whole-house use. They are available in multiple sizes, including 12, 15, 20, 24, 29, and 36 kW models.
- Advanced Flow Control
- Preset temperature memory buttons
- Energy monitor that shows self modulating energy savings
- Saves energy with temperature auto-modulation
- No venting is required
- Sleek, space-saving design
- Easy to install
- Tested and certified by the Water Quality Association against NSF/ANSI/CAN 372 standards
- Requires a dedicated electrical circuit
- Needs a minimum water pressure to operate correctly
- Not suitable for areas with very low groundwater temperatures
- High capacity models can be expensive
Stiebel Eltron’s Tempra Plus models are some of the most advanced electric tankless water heaters on the market. They are designed to provide reliable and energy-efficient hot water for the entire household while taking up minimal space and reducing environmental impact.
One of the key advantages of the Tempra Plus models is energy efficiency. With an energy efficiency rating of up to 99%, they are highly efficient at converting energy into hot water, which can lead to significant energy savings. Additionally, their on-demand design means they don’t waste energy heating and storing hot water when it’s not needed.
Another advantage of the Tempra Plus models is their space-saving design. Unlike the traditional tank heater that requires a dedicated storage room, the Tempra Plus models are compact and can be mounted on a wall, which frees up space in the home. This is especially beneficial for smaller homes or apartments.
The Tempra Plus models also incorporate advanced technologies that set them apart from the competition. For example, their Advanced Flow Control technology regulates water flow and temperature, which ensures a stable and consistent supply of hot water.
Additionally, their self-modulating technology adjusts power consumption based on hot water demand, which increases efficiency and reduces energy waste.
This tankless water heater model also features easy-to-use digital controls that allow users to set the desired water temperature and monitor the unit’s performance. The controls also provide diagnostic information in case of any issues.
However, the up-front cost of the 36 kW tankless water heater is higher than a traditional water heater, which may be a barrier for some homeowners. Additionally, the electrical requirements for the Tempra Plus models may require upgrades to the home’s electrical system, which can add to the cost.
Another disadvantage of the Tempra Plus models is their flow-rate limitations. While they are designed to provide hot water on demand, they have limitations on the flow rate and the number of appliances that can be used simultaneously. This is a concern for larger households with high hot water demand.
Finally, the Tempra Plus models may not perform well in colder regions where the groundwater temperature is low, and may struggle to keep up with high demand during colder months.
Overall, Stiebel Eltron’s Tempra Plus models are an excellent choice for homeowners who value energy efficiency, space-saving design, and advanced technology. While there are some drawbacks to consider, their long life-span, low maintenance requirements, and reliable performance make them a worthwhile investment for many households.
To find out more about the Stiebel Eltron Plus electric tankless water heater models, visit this page.
Tempra Trend: $471–$654
The Stiebel Eltron Tempra Trend tankless water heater is the company’s mid-range product line that offers almost similar performance as the previous models but lacks a few efficiency features. It’s available in 12,15, 20, 24, 29, and 36 kW models.
- Energy efficient
- Compact size
- Easy to install
- Durable and reliable construction
- Digital display
- Durable solid copper heating elements
- Water-flow control technology
- Tested and certified by the Water Quality Association
- Requires adequate electrical capacity
- May require additional components
- No energy monitor system
- No temperature reset buttons
- Downgraded flow sensors
Stiebel Eltron Tempra Trend tankless water heaters are designed to provide a consistent supply of hot water to a home while also being energy efficient. These water heaters are available in various sizes that can accommodate different household and hot water demands.
One of the main advantages of the Tempra Trend models is their compact size and easy installation, which makes them ideal for homes with limited space.
Like the Tempra Plus models, the Tempra Trend whole-house tankless water heater also incorporates Advanced Flow Control technology, which regulates the water flow rate to ensure a consistent desired output water temperature even when the demand for hot water fluctuates.
Another advantage of the Tempra Trend models is their energy efficiency. These electric tankless water heaters only heat water when it’s needed, which reduces energy consumption and lowers utility bills.
However, they do require adequate electrical capacity to operate effectively, which may require an upgrade to the household electrical system and the installation of a dedicated circuit.
While the Tempra Trend models have many advantages, they also have some potential drawbacks. For example, they use electronic temperature control, which may result in less precise temperature control and less stable flow rates than the microprocessor-controlled temperature control used in the Tempra Plus models.
Additionally, the Tempra Trend models’ digital display doesn’t show energy-monitoring data. It also has no pre-set temperature buttons, which may make it more difficult to fine-tune the desired water temperature.
Stiebel Eltron Tempra Trend tankless water heaters are a good option for households looking for an energy-efficient and space-saving hot water solution. While they may not have all the advanced features of the Tempra Plus models, they are a reliable, cheaper, and efficient choice.
For more information on this tankless hot water heater model, check it out here.
DHX and DHC point-of-use systems: $220–$350
Stiebel Eltron DHX and DHC point-of-use tankless water heaters are designed for single-point hot water applications, such as in bathrooms, kitchens, or laundry rooms. These models include the following:
- DHC-E Plus
- DHX Plus
- DHX Select
- DHC-E Trend
- DHX Trend
- DHC Trend
- DHC Classic
Both series are available in several sizes with different power outputs ranging from 3.5 kW to 12 kW to accommodate various hot water demands.
- Hot water on demand
- Electronic self-modulation technology
- Sleek European design
- Switchable kW power output
- Direct Coil heating system
- Very compact space-saving design
- Enlarged display that shows temperature, flow rate information, cost savings calculator
- Advanced Flow Control technology
- Limited hot water capacity
- Additional installation costs
- Risk of water damage
- Maintenance requirements
Stiebel Eltron’s DHX and DHC models are point-of-use tankless water heaters designed to provide hot water on demand at a specific location in the home. These units are compact and efficient, making them an excellent choice for small homes or apartments where space is limited.
The DHX series uses a hydraulically controlled power modulation system to regulate water flow and temperature, while the DHC series uses an electronic flow sensor and temperature control. Both series are available in several sizes with different power outputs ranging from 3.5 kW to 12 kW to accommodate various hot water demands.
One of the main advantages of the DHX and DHC point-of-use tankless water heaters is their energy efficiency. They only heat water when it’s needed, which reduces energy consumption and lowers utility bills.
Stiebel Eltron also offers some models with a switchable kW power output feature. This feature allows users to adjust the power output of the unit, which can be useful in situations where the electrical supply is limited or when the demand for hot water is low. By reducing the power output of the unit, users can save on energy costs and reduce their environmental impact.
Stiebel Eltron also has a Direct Coil heating system that is used in some models. This system uses a heating coil that is wrapped around the water pipe to heat the water directly as it flows through the pipe. This ensures that water heats up quickly, so hot water is available almost instantly.
However, one of the main disadvantages of the DHX and DHC series is their limited hot water capacity. These tankless water heaters are only designed to provide hot water to a single point of use and may not be sufficient for larger households or hot water demands.
They also require a dedicated electrical circuit and proper wiring, which may require additional installation costs. DHX and DHC tankless water heaters are not designed for outdoor use and should not be installed in a location where any potential water leaks could damage the surrounding area.
Overall, the DHX and DHC models are excellent choices for homeowners who need hot water in a specific location but don’t want to install a full-size tankless water heater. They are efficient, reliable, and incorporate proprietary technologies that help ensure a consistent output temperature. However, they may not be suitable for high-demand applications or households with multiple points of use.
If you are interested in a compact hot water heater that is efficient and can fit in tight spaces, check out the Stiebel Eltron DHX and DHC electric tankless water heater models here.
Mini Handwashing Sink Systems: $159–$301
Stiebel Eltron’s Handwashing Sink electric tankless water heaters are designed to provide hot water on demand at a handwashing sink, which can help to improve hygiene and sanitation in these settings. These models include the following:
- Mini-E Thermostatic Handwashing Sink Electric Tankless Water Heater
- Mini Single Handwashing Sink Electric Tankless Water Heater
- Compact size
- Energy efficiency
- Unlimited hot water supply
- Easy installation
- Multiple sink capability (Mini-E)
- Single sink use (Mini Single)
- Not suitable for high-demand applications
- Requires a dedicated electrical circuit with sufficient amperage
- Potential for cold water sandwich effect
- Low water flow rate
The Stiebel Eltron Mini Handwashing Sink electric tankless water heaters are designed for use in small spaces where hot water is needed for a single sink. These compact units are easy to install and offer energy-efficient performance.
The Mini-E Thermostatic Tankless Water Heater is the new electronically controlled version of the Mini Single Electric Tankless Water Heater for handwashing. The thermostatic electronic control gives it additional features beyond the Mini Single unit.
These features include adjustable temperatures, multi-sink capability, and a maximum incoming water temperature of 122°F (50°C).
One major disadvantage of this series of electric tankless water heaters is that they are only designed to provide hot water at a single sink (Mini Single), which means multiple units may be required to provide hot water at multiple sinks. These units also have a limited hot water supply, which means they may not be suitable for high-demand applications.
There is also a potential for the “cold water sandwich effect,” which can occur when the unit turns on and off rapidly, causing a burst of cold water between two streams of hot water.
The Stiebel Eltron Mini Handwashing Sink electric tankless water heaters are a great option for those who need hot water for a single sink in a small space. You can choose between the cheaper and simpler Mini Single system or the more costly but vastly superior Mini-E Thermostatic Handwashing Electric Tankless Water Heater.
Visit this page for full specifications and to purchase.
The Bottom Line
Stiebel Eltron offers a wide range of tankless water heaters for different applications, from whole-house units to point-of-use models.
Stiebel Eltron tankless water heaters offer several advantages, including energy efficiency, space-saving design, and an endless hot water supply. They also incorporate proprietary technologies that set them apart from the competition, such as Advanced Flow Control and Direct Coil heating.
However, some of the disadvantages of Stiebel Eltron tankless water heaters include a higher up-front cost compared to traditional tank water heaters, as well as the need for professional installation. Additionally, electric tankless water heaters may not be the best option for homes with very high hot water demands or limited electrical capacity.
Ultimately, the best Stiebel Eltron tankless water heater for you will depend on your specific hot water needs and the size of your household. It’s important to carefully consider the power output, flow rate, and technology features of each model to determine which one is the best fit for your home.
For more information, check them out here.
About Stiebel Eltron
Stiebel Eltron is a German company that has been in business since 1924. The company was founded by Dr. Theodor Stiebel, who invented the first ring-type immersion water heater. This early invention laid the foundation for Stiebel Eltron’s future innovations in water heating technology.
In the 1970s, Stiebel Eltron introduced its first tankless water heater, which was a significant improvement over traditional water heaters that stored and constantly heated large volumes of water. The tankless water heater was more energy efficient and provided hot water on demand, making it a popular choice for homeowners looking to save on energy costs.
Since then, Stiebel Eltron has continued to innovate and improve its tankless water heaters, incorporating advanced technologies such as electronic temperature control, self-modulating technology, and Advanced Flow Control. Today, Stiebel Eltron is recognized as a global leader in tankless water heaters and other heating and cooling products.
Stiebel Eltron tankless water heaters are designed to provide a continuous supply of hot water on demand, while also reducing energy waste and helping homeowners save on energy costs.
Stiebel Eltron Tankless Water Heater Review Methodology
For years I’ve been on a mission to find the best heating and water solutions for my readers. This section describes the steps I took to research and review the Stiebel Eltron electric tankless water heaters.
Step 1: A list of all Stiebel Eltron tankless water heaters
I began my research by compiling a list of Stiebel’s most popular tankless water heaters on the North American market. This required hours of browsing websites like Amazon, Home Depot, Wal-Mart, and other retail outlets. In the end, I had figured out which retailers offered the greatest bargains.
Step 2: Online reviews
The next step included reviewing consumer reviews on major review sites, such as the Better Business Bureau, TrustPilot, Google Business, and Amazon Reviews. It was critical to find out user sentiment so that I could establish if the advantages claimed by the manufacturer were truly appreciated by the consumer.
Step 3: Interviews with real customers
The next step was to find a means to speak with actual consumers who had firsthand experience with a Stiebel Eltron tankless water heater. The only certain way was to conduct a questionnaire survey.
So I gathered a few close friends and planned a door-to-door survey within a 30-mile radius of where I live. I also spoke with a couple of professional plumbing contractors about their experiences with Stiebel Eltron’s tankless models.
Step 4: Getting in touch with Stiebel Eltron
I had to contact Stiebel Eltron’s US office to press its representatives for answers to some of the few criticisms I heard from consumers. This allowed me to learn how the customer service staff communicated with customers and performed under pressure.
Step 5: Test drives
I figured that if I was going to be objective in my review, I needed to speak as an authority on this subject. This meant that I had to rent these units and run a controlled test drive. I got in touch with a local water treatment dealer who agreed to send over the tankless heaters (on condition that the test be done in the presence of certified plumbers).
So I rented a water bowser, “borrowed” some warehouse space from a close friend, and ran a test drive of all Stiebel Eltron models. Ultimately, I had everything I needed to sit down and write this review.
Stiebel Eltron offers a wide range of tankless electric water heaters suitable for different applications. The Tempra Plus and Tempra Trend models are designed for whole-house use, while the DHX and DHC point-of-use models are perfect for localized hot water needs. The Mini Handwashing Sink models are specifically designed for small-scale applications, such as RVs, boats, and small sinks.
The Tempra Plus and Tempra Trend models stand out due to their Advanced Flow Control technology, which ensures constant temperature even when there is a high demand for hot water.
They also feature easy-to-use digital displays and offer a range of safety features, such as automatic shut off and childproofing. However, their high cost and larger size may be a disadvantage for some users.
The DHX and DHC models are known for their compact size and flexibility, making them ideal for point-of-use applications. They use a Direct Coil heating system for efficient water heating and have a switchable kW power output for precise temperature control. However, their limited capacity and lower power output may not be suitable for larger households or businesses.
Overall, Stiebel Eltron tankless water heaters offer energy-efficient, cost-effective, and space-saving solutions for various hot water needs.
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