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Model #Tempra 24 Plus

Store SKU #1003801485

Tempra 24 Plus Adv Flow Control and Self-Modulating 24 kW 4.68 GPM Residential Electric Tankless Water Heater

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  • Helps deliver steady water temperature in varying flow rates
  • Advanced Flow Control maintains the temperature by reducing flow
  • Self-modulating technology uses minimal energy to heat the water
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Product Overview

Powerful output, compact design, remarkable energy-saving features. Our whole house electric tankless water heaters perform with the highest standards for comfort and reliability. Tempra Plus models feature Advanced Flow Control, patented in Germany and exclusive to Stiebel Eltron tankless heaters. If hot water demand exceeds working capacity, Advanced Flow Control automatically maintains consistent temperatures by slightly reducing flow. Intelligent self-modulating technology continually ensures the least amount of energy is used to heat the water. A Tempra 24 Plus provides hot water at a consistent temperature for up to 2 bathrooms in warm climates, or 1-2 bathroom in cool climates. See sizing to determine which model is best for you. Stiebel Eltron invented tankless electric water heating technology more than 90 years ago, and is still the industry pioneer and world leader. Our engineering and manufacturing tradition of excellence means you can depend on the performance and reliability of our products.
  • Tempra tankless electric water heaters must be correctly sized and you should consult the sizing guide to determine the correct model for you
  • This Tempra Plus model has German patented Advanced Flow Control that automatically reduces output flow to maintain temperature if demand temporarily exceeds capacity
  • Requires a minimum of 150 Amp total service to the residence, with 2 separate dedicated 50 Amp DP breakers and 2 separate runs of 8-gauge copper wiring for the Tempra 24 Plus itself
  • Requires 240 Volt or 208 Volt electric service, and has a maximum output of 24,000 Watts at 240 Volts or 18,000 Watts at 208 Volts
  • Supplies endless hot water at a constant and steady temperature from 68 to 140°F (20-60°C) that can be set on the front panel digital display
  • Flow rate you achieve from this or any tankless water heater depends on how powerful the unit is and the temperature difference between the incoming cold water and the hot water being delivered
  • 99% efficient and typically result in savings of 15-20% in comparison with electric tank water heaters
  • Smart microprocessor technology unique to Tempra water heaters delivers steady water temperature even when flow rate vary as taps are adjusted
  • Must be installed vertically, water fittings pointing down, with detachable connections such as braided flex connectors to allow periodic filter cleaning and flushing for scale, and an anti-scale filter is recommended if hard water is present
  • Professional installation recommended



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Additional Resources

From the Manufacturer

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BrandRheemStiebel EltronStiebel EltronStiebel Eltron
NamePerformance 36 kw Self-Modulating 7.03 GPM Tankless Electric Water HeaterTempra 20 Plus Advanced Flow Control & Self-Modulating 20 kW 3.90 GPM Compact Residential Electric Tankless Water HeaterTempra 24 Plus Adv Flow Control and Self-Modulating 24 kW 4.68 GPM Residential Electric Tankless Water HeaterTempra 29 Plus Adv Flow Control and Self-Modulating 28.8 kW 5.66 GPM Residential Electric Tankless Water Heater
Price
$64900
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Add to Cart to See Price
$79900
Ratings
(1651)
(22)
(94)
(24)
Required Volt Connection240 volt240 volt240 volt240 volt
Application TypeResidentialResidentialResidentialResidential
Wattage (watts)36000 W19200 W24000 W28800 W
Indoor/OutdoorIndoorIndoorIndoorIndoor
Water Heater FeaturesWall MountedOverheat Protection,Wall MountedOverheat Protection,Wall MountedOverheat Protection,Wall Mounted
Number of Showers1-31-21-21-2
Fuel TypeElectricElectricElectricElectric
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Specifications

Dimensions

Product Depth (in.)
4.5 in
Product Height (in.)
16.5 in
Product Width (in.)
16.5 in
Water Connection Size (in.)
3/4 in NPT

Details

Amperage (amps)
100 A
Application Type
Residential
Electricity Phase
Single Phase
Finish Family
White
Flow Rate @ 35°F Rise (gallons/min)
4.68 gal (US)/min
Flow Rate @ 45°F Rise (gallons/min)
3.64 gal (US)/min
Flow Rate @ 55°F Rise (gallons/min)
2.98 gal (US)/min
Flow Rate @ 65°F Rise (gallons/min)
2.52 gal (US)/min
Fuel Type
Electric
Heat Exchanger Warranty
7 Year
Hub Required
No hub connection available
Indoor/Outdoor
Indoor
Maximum Temperature (F)
140 °F
Minimum Activation Rate (gpm)
0.5
Minimum Temperature (F)
68 °F
Number of Elements
2
Number of Showers
1-2
Pack Size
1
Power Options
Hardwired
Product Weight (lb.)
16.1 lb
Remote Access
No Remote Access
Required Volt Connection
240 volt
Returnable
90-Day
Uniform Energy Factor
0
Voice Control Hub Required
No Voice Control
Water Heater Features
Overheat Protection,Wall Mounted
Wattage (watts)
24000 W
Works With
No additional compatibility

Warranty / Certifications

Certifications and Listings
CSA Listed,ETL Listed,UL Certified
Labor Warranty
No Warranty
Part Warranty
3 Year

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.7
    out of 94 reviews
  • 79%recommend this product
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Showing 1-10 of 94 reviews
We decided to take a chance on an electric tankless...
We decided to take a chance on an electric tankless water heater to replace our failing propane water heater in our rural location. So far, the water heater is working well. We live in Northern Utah and the winter water temperature coming into the house is 46 degrees Fahrenheit. We can run two showers at the same time and with our low flow shower heads, the water heater can keep up. Just don't expect it to keep up with body sprayers, etc. in a situation like ours. At 118 degrees Fahrenheit, it takes a bit longer to fill up a bathtub than with our traditional tanked water heater, but that is not a big issue. We have a 200 amp service and the lights dim slightly when the water heater kicks on. There is no flickering, just a slight dimming. This appears to be expected since this is an older home that we had upgraded to 200 amp service. Our wiring, etc. was inspected due to the panel upgrade. It does save a lot of space in the utility room, which is nice. We have yet to check whether we will see any cost savings since it has only been installed for a couple of weeks. The propane water heater was 15+ years old and kicking on several times a day while making kettling sounds. This water heater is only used when we shower or wash dishes in the sink, and is dormant most of the time. With the increase in propane prices, the cost of propane rivals what we are paying for electricity when performing a Kw conversion.
by
Response from Stiebel Eltron SupportApr 24, 2022
Thank you for your excellent review! Sounds like you should enjoy hot water for a long time! Thank you.. JGMasterSTELogin
  • Verified Purchase
Tempra 24 Plus in Northern Indiana
After learning that our 17 year old water heater began leaking while we were on vacation, I starting checking on having it replaced. Plumbers were saying 3-4 weeks to get to my job. I then decided to research tank less heaters. I settled on Stiebel Eltron after reading many reviews and feeling confident that I could install it myself. The day following our arrival home, I started on the project. After 6-8 hours and three trips to the hardware we again had hot water. So far, we love it.
by
Response from Stiebel Eltron SupportApr 19, 2022
Thank you for your excellent review!! Enjoy!! JGMasterSTELogin
    • Recommended
    Love my new tankless water heater. My previous tankless...
    Love my new tankless water heater. My previous tankless took 5-8 minutes to get water hot. Now it's less than a minute anywhere in the house.
    by
    Response from Stiebel Eltron SupportDec 19, 2021
    Thank you for your excellent review! Enjoy the hot water!! JGMasterSTELogin
      Handled The Game Crowd
      Installation of the unit was very easy. Vendor support line was OUTSTANDING. Unit was able to provide hot water for 7 showers prior to College Game Day and Sunday "recovery".
      by
      Response from Stiebel Eltron SupportSep 22, 2021
      Thank you for your excellent review!! JGMasterSTELogin
        • Recommended
        This tankless water heater provides a good hot water flow but does not takes up little space.
        This tankless water heater provides a good hot water flow but does not takes up little space.
        by
        Response from Stiebel Eltron SupportJun 3, 2021
        Thank you for your excellent review! JGMasterSTELogin
        • Verified Purchase
        • Recommended
        Installed myself...it was easy...there are videos on YouTube if your not sure..this unit works Gr...
        Installed myself...it was easy...there are videos on YouTube if your not sure..this unit works Great...we have used for 3weeks now..zero issues..the kitchen is about 45'away and master bath is about 65' away and we had kitchen sink going, dishwasher going and master bath going and had plenty of hot water!!!..make sure to install flush valves on the unit so you can clean it once a year..there are videos on YouTube for that as well..just search flush tankless water heater...or install if you want to see those videos..Great product...well made!!!..I added an additional water filter just because ..you don't have to do that as the unit already has a filter built into it....but I just wanted to!!!...highly recommend..they have the best warranty as well !!
        by
        Response from Stiebel Eltron SupportJul 22, 2020
        Thank you for your excellent review!!! JGMasterSTELogin
        • Verified Purchase
        • Recommended
        9 found this review helpful
        Works really well. Run two showers at once and definitely keeps up. I am located in south Texas s...
        Works really well. Run two showers at once and definitely keeps up. I am located in south Texas so water temps are 75 and above. Is a German made water heater which was populate prior to being in tankless heaters coming to the states. Well built easy install. Need two double pole 50 amp breakers and 8/2 wire for install. Love it so far.
        by
        Response from Stiebel Eltron SupportJun 15, 2020
        Thank you for your great review!! JGMasterSTELogin
        • Verified Purchase
        • Recommended
        6 found this review helpful
        Easy install, so far so good!
        Easy install, so far so good!
        by
        Response from Stiebel Eltron SupportMay 18, 2020
        Thank you for your review! JGMasterSTELogin
        • Verified Purchase
        • Recommended
        2 found this review helpful
        Great unit, saves a lot of space and is very...
        Great unit, saves a lot of space and is very practical. I've been installing this model for over 10 years without any customer complaints.
        by
        Response from Stiebel Eltron SupportMay 19, 2022
        Thank you for your 5 star review!! The next 10 years should go just as well! JGMasterSTELogin
        • Verified Purchase
        Excellent quality and customer service....
        Excellent quality and customer service.
        by
        Response from Stiebel Eltron SupportApr 20, 2022
        Thank you for your excellent review! Enjoy!! JGMasterSTELogin
        • Verified Purchase
        Showing 1-10 of 94 reviews