Tankless electric water heaters are the most affordable and energy-efficient option for homeowners who are looking to retrofit their water heater system. Similar to tankless gas water heaters, tankless electric water heater units also offer energy saving options, gives you constant hot water instantly on demand without the limitation of a tank, and overall the electric versions are consistently more energy-efficient than gas models.
Whether you live alone in a studio apartment or in a bustling household with many bathrooms, the best quality tankless electric water heater is an ideal choice for everyone. If you are tired of using large storage tank water heaters, then it’s time to upgrade your system. In this article, we’ll discuss the top 6 best Stiebel Eltron tankless electric water heaters, along with giving you an overview of the brand itself.
Why You Should Buya Stiebel Eltron Tankless Electric Water Heater
Stiebel Eltron is one of the world’s best known and appreciated tankless water heater brands due to the fact that they produce some of the best quality tankless water heaters. Below we list points of emphasize for what makes Stiebel Eltron such a major player in this space and why you should consider Stiebel Eltron water heater when you are looking to upgrade your water heater situation.
Energy-Efficient
Stiebel Eltron offers an energy-efficient tankless water heater. Stieble Eltron tankless water heater line eliminates the “stand by” thermal loss of traditional storage tank water heater which uses less energy and saves both your money and electricity. The tankless water heater by Stiebel Eltron saves 35% over natural gas water heater and up to 50% over electric tankless water heaters.
Endless Hot Water
Stiebel Eltron made water heaters provide the ultimate in 24-hours a day supply of hot water for the entire house. However, the brand also offers various models that are suitable for your households unique demands of hot water. Stiebel Eltron heaters line have models that are able to supply up to 8 gallons per minute flow rates which will be sufficient for most whole home water heater needs.
Space-Saving Size
Stiebel Eltron constructs a space-saving size tankless electric water heater that easily fits in small spaces. So, if you have a space problem, then the Stiebel Eltron heaters are a great option for you to consider.
A Stiebel Eltron tankless water heater is suitable for apartments and homes where space is at a premium.
High-Quality
Due to Stiebel Eltron high-quality constructed tankless electric water heaters all water types, hard or soft, will work with these water heaters. No need to concern yourself with whether hard water will damage your Stiebel Eltron heater over time, because the company builds their products understanding not all water is the same.
Safety First
Stiebel Eltron tankless water heaters come with complete user safety features. Each unit comes with an these safety features:
- Electronic Control Module which adjusts the power output of the heating elements based on flow rate and incoming water temperature.
- A flow sensor communicates with the microprocessor to calculate the power level of the heating modules which regulates the water temperature to the proper set temperature.
- A Safety Thermal cut-off switch is a back-up safety feature that will turn off the heating module automatically if an unsafe water temperature is reached which will reduce any potential for dangerously hot water scalding you.
- The Temperature Selector knob allows you to select the desired temperature, raise or lower as you see fit, all with a digital display that takes the guess work out.
- Temperature sensors work with the flow sensor to communicate with the microprocessor frequently to allow the unit to maintain an accurate set output water temperature.
- A terminal wiring block provides a quick, simple and safe installation for the licensed electrician, which is recommended, or for you if you can handle the job of installing.
- A flow control will adjust the flow rate of the water in the event the microprocessor detects that the flow rate is exceeding the systems capacity. This is useful when you are using hot water at multiple points that occasionally exceed your models normal flow rate capacities.
- The steel case, which holds the magic (everything that makes up these units) of this water heater, is well built with built-in-wall mounting brackets which is a major upgrade compared to some of Stiebel Elton’s competitors.
- There’s an inlet water filter to keep out any debris that may have found its way into the water. This screen can easily be cleaned to ensure optimal flow performance.
Environmentally Friendly
The tankless electric water heaters by Stiebel Eltron are constructed with environmentally friendly materials. Domestic hot water accounts for roughly 20% to 30% of all domestic household power. Stiebel Eltron electric water heaters reduce 50% of power consumption for your home. Furthermore, Stiebel Eltron water heaters live a long life, up to 5 times longer than a conventional storage tank water heater. While this life-line isn’t what you should expect, you get the point, these Stiebel Eltron’s last a long time which keeps them out of dumps which is environmentally friendly!
Price & Warranty
Stiebel Eltron offers tankless electric water heaters that are less expensive than similar gas water heaters so, these water heaters should meet most budgets.
Stiebel Eltron on average offers a 7-year limited warranty on the heating modules; 3-year limited warranty on other component parts so you should be covered.
- Dimensions: 16.63" x 4.63" x 14.50"
- Voltage: 240 V
- Output water temp. range: 86°F - 140° Fahrenheit
The Stiebel Eltron Tempra 24 Plus Tankless Water Heater is an Amazon best-selling product that uses German patented technology for an advanced flow control.
The Stiebel Eltron Tempra 24 Plus has a feature that automatically maintains water temperature. If you hot water demand exceeds the units capacity, then this feature will reduce flow slightly to keep the temperature where you want it.
This Stiebel Eltron has a sleek design and because it’s very compact it saves space and can easily fit most small areas. Since it’s an electric model there is no need to vent it, so you can install it almost anywhere.
This eco-friendly unit use auto-modulation feature to save energy; it also has the ability to measure water flow electronically and shows how much energy saving you have.
This Stiebel Eltron tankless water heater is easy to operate and has a digital temperature display with preset temperature memory buttons. Moreover, this model of Stiebel Eltron heater uses 24KW and offers an output temperature of 86˚ to 140˚degrees Fahrenheit.
Stiebel Eltron’s top-rated electric heater offers the highest standard performance with reliability and comes with 7-year leakage and 3-year parts warranty. If you are looking for the best quality tankless electric water heater by Stiebel Eltron, then Tempra 24 plus electric water heater is an ideal choice for you.
Attributes
- kW: 24 kW
- Amperage draw: 100 A
- Required breaker(s): 2 x 50 A DP
- Recommended household electric service: 150 A
- Flow to activate unit: 0.50 GPM
- Voltage: 240 V
- Dimensions: 16.63" x 4.63" x 14.50"
- Required wire size & number of runs: 2 x 6/2 AWG
- Output water temp. range: 86°F - 140°F
Pros
- Offers digital temperature display
- Provides continuous hot water
- Savings and water flow monitors
- Advance flow control system to enhance energy savings
- No venting is required
- Saving monitor shows cost savings
Cons
- The installation process is a little bit difficult
- It requires two 60-amp circuits
- Available in Different kW Sizes
- Voltage: 240 V
- Portable Tankless Water Heater!
The Stiebel Eltron DHC-E 12 model of electric water heater comes in a portable design and easily adjust in most closets and under sinks. This unit is best for single point-of-use and is easy to install and operate.
It is available in different sizes, and some of the other sizes can accommodate multi-usage, so you can choose one according to your needs. Moreover, according to the manufacture, the DHC-E12 model is extremely efficient, with 99% efficiency rated.
Adjusting the temperature is very simple and easy, but it offers a limited temperature range compared to other models of Stiebel Eltron. This Stiebel Eltron water heater has with another amazing feature which allows you to be able to switch between two different modes, either 9,000 watts or 12,000 watts which can be setup during install via a jumper.
Attributes
- Voltage: 240 V
- Amperage draw: 50 A
- Flow to activate unit: 0.264 GPM (1.0 l/min)
- Wattage: 12,000 watts
- kW: 12.0 kW
- Required circuit breaker: 50 A
- User adjustable temperature range between 86–140°F (30–60°C)
- Amperage Capacity: 60 Amps
Pros
- Water temperature is rock solid
- Great for residential point-of-use
- Portable tankless water heater
- No need to upgrade the electricity grid
- Very affordable
- Compact and easy to install
Cons
- It's not compatible for big simultaneous hot water
- Multi point-of-use is limited
- Small temperature range
- Mini-Tank Water Heater
- Available in Three Size: 2.5, 4 and 6-gallons
- Perfect Compliment to Maximize a Homes Energy-Efficiency
Although we slipped this mini-tank into our Stiebel Eltron tankless water heater reviews, the SHC 2.5 mini-tank electric water heater by Stiebel Eltron is one of the best under sink electric water heaters.
This German-made design water heater helps you to save both energy and water and provides you instant hot water when you need it. The Stiebel Elton SHC line comes in three different sizes which should be able to accommodate all homes needs. This model comes in either a 2.5, 4 or 6 gallon storage capability.
The Stiebel Eltron heaters required a standard 120-volt outlet for easy installation. Its flat back makes easy, space-saving installation and is also easy to wall mount. This model of the Stiebel Eltron comes with a convenient temperature adjustment feature, a simple thermostat dial on top of the unit allows you easily adjust the from 86 to 140 degrees Fahrenheit.
This mini-tank water heater is a perfect compliment to any tankless water heater setup your home has. We all have certain faucets that are too far from the main water heater that so much water is wasted getting the hot water to you for use. This compact unit can be the an easy solution if you’re looking to maximize your homes energy-efficiency.
Attributes
- Nominal water volume: 2.65 gal
- Electrical requirements: 120 V Plug-in
- Weight empty: 15.9 lbs
- Temperature range: 86–140 °F / 30–60 °C
- Standby energy loss: 55°C: 0.37 kWh/day
- Recovery time: 18 minutes
- Internal tank material: Glass-lined steel
- Dimensions: 16" x 11" x 10-5/8"
- Water connections: ½" NPT black steel
Pros
- Easy to install
- Sleek modern design
- Glass-lined tank
- Comes with a 6-year warranty on tank and 2-year warranty on parts
- Available in three sizes
Cons
- Not unlimited supply of hot water
- 140F is a maximum temperature that is less than other models
- Dimensions: 21.8" x 19.2" x 9"
- Required breakers: 3 x 40 A DP
- No Venting Needed!
Stiebel Eltron Tempra 29 Plus electric water heater comes with 99% energy-efficiency with intelligent self-modulating technology that continually ensures the least amount of energy is used. The Stiebel Eltron Tempra gives you constant energy savings because it is only on when you need hot water, period.
This tankless electric water heater uses advanced flow control technology that provides constant comfort by automatically maintaining your hot water’s temperature and provides instant hot water no matter how large of a demand you have.
Its compact design easily fits in most small places and has a single flow sensor design. The Stiebel Eltron Tempra several benefits and is less expensive compared to a gas tankless water heater. The installation process is very simple and easy since you don’t have to vent the Tempra 29 Plus to the outside.
Like the other models of the Stiebel Eltron, the Tempra 29 Plus comes with a digital temperature display and convenient dial selector, which allows you to set the temperature according to your needs.
Attributes
- kW: 28.8 kW
- Amperage draw: 120 A
- Recommended household electric service: 200 A
- Output water temp. range: 86°F - 140°F
- Voltage: 240 A
- Required breaker(s): 3 x 40 A DP
- Flow to activate unit: 0.77 GPM
- Water connections: 3/4" NPT
- Dimensions: 21.8" x 19.2" x 9"
Pros
- Convenient temperature control
- Requires less space
- Portable and compact design
- Savings on the electric bill
- Easy to install and use
Cons
- A little bit expensive
- Requires 3 X 60 amp breaker
- Not suitable for colder climate
- Discontinued model
- Dimensions: 7.5" x 3.25" x 6.5"
- Voltage: 120 Volts
- Item Weight: 4.65 pounds
Stiebel Eltron is consistently rated as one of the best tankless water heater brand. They’ve found this success by constructing the best quality products that are specially designed for installation at the point of use.
This mini tankless water heater works instantaneously and produces a flow rate of 2-GPM of hot water. The size of the tank is mini, 7.5″ x 3.25″ x 6.5″, and it is designed for point-of-use installation at a single hand washing sink.
This size of the Stiebel Eltron is perfect at delivering warm water, in your half baths, whenever it’s needed.
Moreover, this Stiebel Eltron Mini 3.5-1 has a flexible installation design that allows you to mount with the water connections either pointing up or down easily. This unit also offers a variety of installation options to give you much flexibility. The thermostat of this electric heater guarantees that the water temperature will be consistently maintained.
If you are looking for a small unit to install for a half bath faucet or something similar, for the money this is an excellent choice.
Attributes
- Item Weight: 4.65 pounds
- Dimensions: 7.5" x 3.25" x 6.5"
- Amperage Capacity: 31 Amps
- Flow Rate: 2-GPM
- Minimum flow to activate unit: 0.40 GPM
- Voltage: 120 Volts
- Wattage: 3,500 watts
- Amps: 29 Amps
- Maximum Temperature: 122 degrees Fahrenheit
Pros
- Reliable and durable construction
- Easy to install and use
- No leakage issues
- Sleek and compact design
- Comes with a limited 7-year warranty against leakage
Cons
- Owners note that it is sensitive to pressure flow
- Water temperature may not get hot enough for you
- Dimensions: 14-3/16" x 7-1/8" x 4-1/8"
- Amps: 50 amps
- Installation: Undersink
If you are looking for the high-quality Stiebel Eltron tankless water heater that produces hot water instantly, then the Stiebel Eltron DHC-E8-10 is an ideal choice for you. This Stiebel Eltron heater offers 50% energy saving consumption.
Owners mention that you should use this unit with a low flow faucet to ensure the flow rate matches that of the faucet so the water has time to heat water to a temperature you desire.
This Stiebel Eltron heater comes with hydraulically-operated functions and works efficiently. It also works almost silently which since it will be installed at point-of-use is ideal so not to interupt your bathroom trips.
The flow-switch controllable heating feature allows you to change the flow switch easily. Furthermore, this model of Stiebel Eltron offers user’s safety and comes with safety high-limit switch with manual resetting functions for the safety of users. It has a self-modulating temperature control feature that adjusts power consumption automatically.
Attributes
- Wattage: 9,600 watts
- Wire Size: 8 AWG
- Dimensions: 14-3/16" x 7-1/8" x 4-1/8"
- Amps: 50 amps
- Minimum Flow Activation: 0.29-GPM
- Mounting: Vertical
- Pressure Range: 150 psi
- Water Heater Application: Undersink
- Temperature Range: 86 Degrees to 140 degrees Fahrenheit
- Voltage: 208/240
Pros
- Portable and compact tankless water heater
- Specially designed for single point-of-use
- No need to upgrade the electricity grid
- Very affordable
- Simple and compact design for easy install
Cons
- Casing is plastic and owners mention it seems fragile
- Multi-point of use is limited so best for point-of-use
- If you need simultaneous hot water, then this model is not good fit
- Offers small temperature range
FAQs
Does a tankless water heater require special faucets?
No, a tankless water heater has built-in aerator screens that work very well with water-saving faucets. These built-in screens usually work at a flow rate of 1 to 2 GPM, so you can use them easily with the best kitchen and bathroom faucets.
What is the main benefit of a tankless electric water heater?
As mentioned above your water heater uses a good amount of all the energy your house needs to operate. The traditional storage tank water heaters run every time it senses that the water in the storage tank drops below a certain temperature which lowers it energy-efficiency.
The main benefit of using a tankless water heater is that it saves you a ton of wasted energy. Many units only use energy when it senses hot water is needed at the faucet which means there is relatively no lost energy in the process of supplying your family with hot water. Point-of-use units have the possibility of saving you wasted water on top of it which will even increase your green footprint which is great for the planet!
Final Thoughts About Stiebel Eltron
A brand that is consistantly getting high marks from experts and owners alike, Stiebel Eltron tankless water heaters are an excellent option for you to consider when updating you hot water system. Stielbel Eltron are known for providing awesome point-of-use units that will be a welcomed addition to assist in saving money, energy and water!