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Stiebel Eltron

Stiebel Eltron Tempra 15 Plus Electric Tankless Water Heater, 14.4kW, 240V

  • Based on 104 reviews
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Availability: In Stock.
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Arrives Wednesday, Sep 23
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Size: 15 (kW)


Style: Tempra Plus


Features

  • CONTINUOUS FLOW Advanced Flow Control patented technology invented by Stiebel Eltron, automatically maintains water temperature for constant comfort. Itll reduce flow slightly if hot water demand exceeds capacity. Hot showers will never be interrupted again
  • SPACE & ENERGY SAVER Its small, sleek white design saves space yet still provides endless hot water for your whole house, and no venting is required. Eco friendly unit saves energy with auto-modulation and the ability to electronically control water flow. Savings monitor even shows how much you save on energy costs
  • EASY OPERATION Electronic switch activates the hot water heater and its noise free while in use. Has a digital temperature display and preset temperature and memory buttons, while the interior solid copper heating system does all the power work
  • TEMPRA 15 PLUS This specific model is 14.4kW, 240V, requires a min recommended electric service of 100 A, and offers an output water temperature of 68 to 140F. Check our guides below to compare features of our various Trend and Plus models, each available in different kW levels
  • WARRANTIES INCLUDED Stiebel Eltrons top-rated electric tankless water heaters perform with the highest standards for comfort and reliability. Our 7-Year Leakage and 3-Year Parts Warranties are included with purchase

Description

Get hot water for your entire home with this Stiebel Eltron Tempra 15 Plus Tankless Electric Water Heater. Made in Germany with a 100 years of engineering excellence, this energy-efficient heater delivers up to 34% savings on water heating costs with 99% efficiency. Featuring exclusive German-patented technology that automatically maintains desired temperatures even during high demand. Every family member enjoys the perfect shower without disruption. Self-modulating technology continually adjusts to ensure the minimum electricity is used. The sleek, compact design installs easily and requires no venting. Whether it's morning showers, laundry, or dishes, you'll always have hot water when you need it. Tempra 15 Plus provides hot water at a constant temperature for up to 1-1.5 showers in warm climates, or 1 shower in cool climates. See sizing guide to determine which model is best for you. Stiebel Eltron invented tankless electric water heating technology over 100 years ago and remains the industry pioneer with unmatched German engineering excellence.

Brand: Stiebel Eltron


Power Source: Hard Wiring Required


Product Dimensions: 16.63"W x 14.5"H


Special Feature: LED Display


Color: White


Power Source: Hard Wiring Required


Special Features: LED Display


Wattage: 14.4 KW


Voltage: 240 volts


Maximum Temperature: 140 °F


Heat Output: 14.4 KW


Maximum Pressure: 150 psi


Mount Type: Wall


Item Dimensions W x H: 16.63"W x 14.5"H


Item Weight: 16.1 pounds


Item Depth: 4.625 inches


Material Type: Copper


Item Highlight: Made in Germany; 2x30A breakers, 60A draw; Advanced Flow Control; Eco design; Energy+cost savings up to 34% in whole-home use


Brand Name: Stiebel Eltron


Model Number: 15 Plus


Number of Items: 1


Unit Count: 1 Count


Manufacturer: Stiebel Eltron


UPC: 040232668593


Global Trade Identification Number: 93


Item Type Name: Water Heater


Manufacturer Part Number: 239220


Color: White


Style Name: Tempra Plus


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Awesome, awesome, awesome.
Size: 15 (kW) Style: Tempra Plus
If you want trully unlimited hot water this is the unit. My house is pretty small, 1300 sq ft. 1 1/2 bath, kitchen sink, clothes washer, and dishwasher. I am recovering from a back injury at the time. I just took a 20 min shower to loosen up enough to sit in tub. I could have gotten clean with drain open then showered with drain closed to fill up. But I wanted to see how it did. It was same temp as shower while filling tub. The feature on this unit that reduces volume but not temp works perfectly. My son started his clothes while Mom was in shower. She didn't scream like in past with 40 gal tank. She came out when done and asked why pressure reduced. I hadn't prepped her for it just to see her reaction. I'm sweating while sitting in tub typing this. The instal was easy. Mounted, Plummed, and rewired after electrician messed up. I've been in construction my whole life. But I'd suggest hiring pros if your not atleast self proclaimed jack of trades. Make sure to see electric specs. I had to run an additional line and add a breaker. Waiting to see power bill after a full month. Bottom line is have family on same page while showering, no different than with a tank system. Now consider when not how long you can shower. ... show more
Reviewed in the United States on April 25, 2020 by David Burnett
    • Pulls a pretty big amount of electricity but water is hot! Perfect for our vacation home
Size: 15 (kW) Style: Tempra Plus
Works great! Water is hot and perfect for home when you aren't there all the time. Need 40Amp breaker but perfect. Had 2 yrs now
Reviewed in the United States on April 11, 2026 by Kindle Customer
    • Awesome system! Easy install!
Size: 15 (kW) Style: Tempra Plus
Review Image by Michael A. Corrigan
Review Image by Michael A. Corrigan
No muss… no fuss. I used it to replace an electric 40 gallon water tank that was 16 years old for my 700 ft cottage. Ran two new 10/2 AWG wire lines from the CB panel (two double 30amp circuits needed for 15 model) and rerouted the Plex B pipe. Install was easy for the water heater itself. Just make sure to get the descale plumbing kit and watch you tube on install. Saved 2k doing it myself. Cost total install was around 1100 bucks. Now i can get that drone I always wanted… ... show more
Reviewed in the United States on May 29, 2025 by Michael A. Corrigan
    • It works but wish it had internet connectivity.
Size: 15 (kW) Style: Tempra Plus
It supplies enough hot water for me but I live alone. I don't think it would be adequate for a multi-person household. Running the dual runs of 10/3 NM-B for it wasn't easy. I'm so glad I didn't run 8/3 NM-B as it would have been much difficult and expensive. One thing to note is the case is a clamshell that is hinged on the left. Mine is installed in a 28"D x 23"W tank well that used to house a gas-fired hot water tank on the right hand wall. The LCD screen can only be viewed when looking direct at it, especially if it's lit. It's unreadable if looking at it from above or below. It's much too bright to get captured by an inexpensive usb camera. The lack of connectivity makes tuning problematic. It took over a half dozen attempts before I got it set where I like it. Amusingly, that happened to be at 120. The unit often draws more than 60 amps. I've seen it draw 62 amps. Sometimes one of the two 30 amp breakers trips; always the same one (circuit 1 (left)). But the typical draw for a shower is 52A (12.75kW) --- It's been a year since it was installed. Over that year the Tempra 15 Plus consumed just under 300 kWh averaging around 25 kWh a month for around $2.50. Compare that to nearly $20 for 6 therms of natural gas at nearly $20 per month. ... show more
Reviewed in the United States on March 12, 2024 by Matt Thomas
    • Beautifully designed and built in Germany at a very reasonable price.
Size: 15 (kW) Style: Tempra Plus
Review Image by Henry Dickson
Heater replaced an aging 60 gallon gas heater, natural gas prices having gone through the roof since Putin's "special operation" in Ukraine. I was able to install it myself, but given the extensive electrical and plumbing work required, this is NOT a project to undertake unless you know exactly what you're doing and why. Heater requires two separate 240 volt circuits, and operates without a negative.Not shown in the pic is some heavy-duty (4 AWG) copper wire which bonds the hot and cold water pipes together and connects to ground via the service panel -- we have a 200-amp panel, but you may want to consult with an electrician to find out if your service panel is able to handle a tankless electric or will need to be replaced before installing the heater, because even a smaller heater like this one does draw a lot of juice. All in all, very pleased with this heater, which does exactly what Stiebel-Eltron promises. Had to buy the isolation valve assembly (directly under the heater) separately, but these heaters DO require ongoing maintenance, and the purpose of the isolation valves is to enable trouble-free flushing to get rid of scale, which left untreated in even moderately hard water areas will shorten the life of the heater. (Stiebel-Eltron has published a technical services bulletin on descaling.) Before deciding to buy, figure in the fact that if you can't self-install, you're going to have to pay a plumber AND an electrician to do it for you, which probably won't come cheap. Good luck. ... show more
Reviewed in the United States on July 1, 2022 by Henry Dickson
    • Glad I Went Tankless
Size: 15 (kW) Style: Tempra Plus
I heard so many bad things about tankless heaters that I was skeptical it would do its job. Glad I took the leap. This unit works great. We have yet to run out of hot water and we haven’t change how we use our hot water. Easy install for mounting, plumbing, and wiring but does require 2 separate circuits to operate. ... show more
Reviewed in the United States on September 7, 2024 by Ron P.
    • Great space saver
Size: 15 (kW) Style: Tempra Plus
Working great
Reviewed in the United States on August 30, 2026 by A Carr
    • Always have hot wayer
Size: 15 (kW) Style: Tempra Plus
Review Image by Joyce
We are enjoying the consistent supply of hot water. You need to be sure you have the electric supply for this type of heater. We purchased a smaller unit than we would have if we had a bigger or heavier power line. With that said, we have had all the hot water we need, with no issues. Before this tankless water heater we often had to wait for the tank to catch up or take cold showers. It was not easy to install because of the electric power supply but otherwise it was just water in and water out. The guys said that part was easy. ... show more
Reviewed in the United States on March 29, 2024 by Joyce

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