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Stiebel Eltron

Stiebel Eltron Tankless Water Heater – Tempra 12 Plus – Electric, 12kW, On Demand Hot Water, Eco, White, Made in Germany

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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Apr 17
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Size: 12 (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 12 PLUS This specific model is 12kW, 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 12 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 12 Plus provides hot water at a constant temperature for 1 shower in warm climates and for 1 low flow shower at a cabin or cottage in cold climates. 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


Capacity: 0.13 Gallons


Power Source: Hard Wiring Required


Product Dimensions: 16.63"W x 14.5"H


Special Feature: LED Display


Power Source: Hard Wiring Required


Special Features: LED Display


Wattage: 12 KW


Voltage: 240 Volts


Flow Rate: 3 Gallons Per Minute


Maximum Temperature: 140 Degrees Fahrenheit


Heat Output: 12 Kilowatts


Efficiency: High


Maximum Pressure: 150 Pound per Square Inch


Mount Type: Wall


Is Electric: Yes


Smart Home Compatibility: Smart Home Compatible


Color: White


Style Name: Tempra Plus


Material Type: Copper


Capacity: 0.13 Gallons


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


Item Weight: 13.5 Pounds


Item Depth: 4.625 inches


Brand Name: Stiebel Eltron


Model Number: 12 Plus


Manufacturer: Stiebel Eltron


UPC: 040232668586


Manufacture Year: 2023


Global Trade Identification Number: 86


Manufacturer Part Number: 239219


Unit Count: 1.0 Count


Item Type Name: Water Heater


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Apr 17

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

    • This unit was a perfect fit for a 7 year old unit that failed.
Size: 12 (kW) Style: Tempra Plus
I like the fact that the connection design has not changed even though technologically the unit has been improved. This allowed me to disconnect the prior unit and install this new unit in less than 20 minutes. The unit works as advertised.
Reviewed in the United States on January 19, 2022 by Ronald OBrien
    • Great Unit
Size: 12 (kW) Style: Tempra Plus
Easy to install and solved my issue of not enough hot water to fill a new large tub...
Reviewed in the United States on February 25, 2022 by Community Builder
    • The Hot Water NEVER Runs Out!
Size: 12 (kW) Style: Tempra Plus
Review Image by Jon C.
Review Image by Jon C.
I first purchased a Stiebel Eltron Tempra 12 about 25 years ago. I had a large jacuzzi tub that I could never get filled with hot water with the original tank heater where, when the hot water runs out of the tank, it takes quite some time to heat up a new batch. The Tempra 12 solved that issue, but there are a few things to be aware of before purchasing a tankless water heater. The greatest benefit is that you truly have an endless supply of hot water, so it's no problem being the last person in a large household to take a shower - you'll still get hot water and can stay in there as long as you want. There's typically also a savings in energy costs associated with the tankless water heaters since, unlike the tank heaters that are constantly running to keep the stored water in the tank hot, the tankless water heaters only kick on when there's a demand for hot water and heats the water in "real time". While I haven't personally noticed a savings on my electric bill (electricity prices have only gone up!), it's likely been there and just difficult to notice without a true side-by-side comparison. That said, this newer "Plus" version of the Tempra 12 is auto-modulating which means, unlike the older versions that always kick on with full power any time hot water is demanded, the auto modulating will scale down the power if you just want warm water so there should be additional power savings with the Plus model. The cons and things to be aware of associated with this unit include: 1) Although people refer to these units as supplying "instant hot water", it does take a few seconds for the water to heat up, travel to the faucet, and start pouring out hot. This is to be expected with any tankless hot water heater. 2) While I am a big fan of the tankless water heaters, and this specific model, this is actually my 3rd Tempra 12 model in about 25 years. I purchased the last one in February of 2018. So, they don't seem to last too long but I have done literally zero maintenance to any of the units to date. 3) This needs to be wired to a 50 amp circuit in your circuit box. You will likely need both a plumber and an electrician to install. First, an electrician to run the power to the location you plan to install, then a plumber to install the water heater. This can increase the costs significantly, however, once it's installed at that location, a plumber or even a good handyman can easily re-install a new unit in the same location. The reason I've stayed with the Tempra 12 is that replacing it has been simple, in spite of the relatively short life. 4) Make sure you understand your household's needs for hot water. The Tempra 12 works great if you want to run a shower while doing a load of dishes or laundry simultaneously. But, if you want to have three showers going along with the dishes and laundry, this unit will likely not be able to heat enough water fast enough to supply all of the outlets. I hope this helps! ... show more
Reviewed in the United States on October 4, 2024 by Jon C.
    • Nope!
Size: 12 (kW) Style: Tempra Plus
Warning! Need to be sure if you need one of these ir is made for USA Accessories.
Reviewed in the United States on August 25, 2025 by Macaw Squawker
    • Installed and working well
Size: 12 (kW) Style: Tempra Plus
We put this heater underneath the kitchen sink on the back wall. Plumber connected it to hot water line, going to faucet and to dishwasher. Then electrician ran a dedicated 220v 50 amp line from the breaker box. This is something you want done professionally, not a do it yourself kind of job. Anyway, it has made our cooking and washing time better, taking less time to get water to the sink. It so happens in our house the main water heater is quite a ways from the kitchen (but right by the bathroom shower, so that's ok), but it would take minutes for the water in the kitchen to heat up. Now it takes 30 seconds to get hot water, and once the main water gets to the unit, it doesn't need to run anymore. So it's definitely a convenience feature which we appreciate every day. Very well made and instructions are almost clear. I recommend. ... show more
Reviewed in the United States on June 6, 2019 by J. Comeaux
    • Perfecto!
Size: 12 (kW) Style: Tempra Plus
Less than an hour to install.Wow! Works great looks good, it is my best pal.
Reviewed in the United States on August 13, 2022 by Dede B.
    • Best purchase
Size: 12 (kW) Style: Tempra Plus
This item has saved $100 a month in water and electricity for me.. a single individual. Imagine what it could do for a family. Gone is the leaky tank. Now hot water is always available. Purchased this product since it doesn't require extensive changes to anything already there. Works with a fuse system. Hard to find anything that does these days. Highly recommend. Well worth the investment. ... show more
Reviewed in the United States on April 7, 2021 by sorceress
    • A bit better than others
Size: 12 (kW) Style: Tempra Plus
Easy to install. The constant water temperature is working very well and makes the SE so much better than the old PowerStar.
Reviewed in the United States on January 4, 2020 by Der Gourmet

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