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Stiebel Eltron Tempra Plus 36 kW, tankless electric water heater with Self-Modulating Power Technology & Advanced Flow Control

4.4 4.4 out of 5 stars 801 ratings

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Tempra 36 Plus (Discontinued Model)

Purchase options and add-ons

Brand Stiebel Eltron
Product Dimensions 16.54"W x 14.52"H
Color Gray
Wattage 26000 watts
Voltage 240 Volts
Capacity
3.3 Liters
Power Source
Battery Powered
Item Weight
19 Pounds
Style
Tempra 36 Plus (Discontinued Model)

About this item

  • Digital temperature control
  • Proven reliability. No venting required.
  • DRAWS 150 A. Requires minimum 300 A electric service. Dimensions (H x W x D): 14.52" x 16.54" x 4.61"
  • Sleek design fits anywhere
  • Save at least 15-20% on the hot water portion of your electric bill.Requires 240 or 208-Volt. Reduce water flow rate until power light on front cover stops blinking
See more product details

Customer ratings by feature

Temperature Control
4.3 4.3
Energy efficiency
4.3 4.3
Tech Support
4.1 4.1

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Stiebel Eltron Tempra Plus 36 kW, tankless electric water heater with Self-Modulating Power Technology & Advanced Flow Control
Stiebel Eltron Tempra Plus 36 kW, tankless electric water heater with Self-Modulating Power Technology & Advanced Flow Control
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Price$780.77-7% $335.00
List:$359.00
$469.99$379.99-11% $624.00
List:$698.00
$634.27
Delivery
Get it as soon as Tuesday, Mar 26
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Customer Ratings
Temperature Control
4.3
4.8
4.0
2.9
4.4
4.4
Energy efficiency
4.3
4.8
4.0
4.5
4.5
Tech Support
4.1
5.0
3.8
4.2
4.2
Easy to install
4.0
3.8
4.5
4.5
Sold By
Amazon.com
Amazon.com
THMOS
Sain Store
Amazon.com
Amazon.com
power source
Battery Powered
Hard Wiring Required
208~240V Hardwire
Corded Electric
Hard Wiring Required
Hard Wiring Required
max operate pressure
150 pounds per square inch
150 pounds per square inch
150 pounds per square inch
material
lead free
Copper
Copper
style
Tempra 36 Plus (Discontinued Model)
Plus
27kW
Indoor Installation
Tempra 24 Plus (24 kW)
Tempra 15 Plus (15 kW)
weight
19 pounds
5.5 pounds
19 pounds
20 pounds
1 pounds

From the manufacturer

Stiebel Eltron - Simply the Best since 1924
Self-modulating energy technology & Advanced Flow Control for more comfort using less electricity
Tempra 12 | Tempra 12 Plus Tempra 15 | Tempra 15 Plus Tempra 20 | Tempra 20 Plus Tempra 24 | Tempra 24 Plus Tempra 29 | Tempra 29 Plus Tempra 36 | Tempra 36 Plus
Tempra 12 | Tempra 12 Plus Tempra 15 | Tempra 15 Plus Tempra 20 | Tempra 20 Plus Tempra 24 | Tempra 24 Plus Tempra 29 | Tempra 29 Plus Tempra 36 | Tempra 36 Plus
Customer Reviews
4.4 out of 5 stars
801
4.4 out of 5 stars
801
4.4 out of 5 stars
801
4.4 out of 5 stars
801
4.4 out of 5 stars
801
4.4 out of 5 stars
801
kW 12 kW 14.4 kW 19.2 kW 24 kW 28.8 kW 36 kW
Voltage 240 A 240 A 240 A 240 A 240 A 240 A
Max. amperage draw 50 A 60 A 80 A 100 A 120 A 150 A
Min. required breaker(s) 1 x 50 A DP 2 x 30 A DP 2 x 40 A DP 2 x 50 A DP 3 x 40 A DP 3 x 50 A DP
Min. required wire size and number of runs 1 x 6/2 AWG 2 x 10/2 AWG 2 x 8/2 AWG 2 x 6/2 AWG 3 x 8/2 AWG 3 x 6/2 AWG
Min. recommended household electric service 100 A 100 A 125 A 150 A 200 A 300 A
Min. flow to activate unit 0.37 GPM 0.50 GPM 0.50 GPM 0.50 GPM 0.77 GPM 0.77 GPM
Water connections 3/4" NPT 3/4" NPT 3/4" NPT 3/4" NPT 3/4" NPT 3/4" NPT
Output water temp. range 86°F - 140°F 86°F - 140°F 86°F - 140°F 86°F - 140°F 86°F - 140°F 86°F - 140°F
Warranty 7 yr leakage/3 yr parts 7 yr leakage/3 yr parts 7 yr leakage/3 yr parts 7 yr leakage/3 yr parts 7 yr leakage/3 yr parts 7 yr leakage/3 yr parts

Temperature rise plus flow rate determines sizing

Sufficient electrical service for largest models must be considered

Sufficient electrical service for largest models must be considered

Sizing Guide

1 Find your approximate ground water temperature on the map.

2 Check the column on the table to see how many fixtures can be supplied at the same time for each model.

3 Use the actual max. flow rate to fine-tune these recommendations.

4 Make sure you have sufficient electrical service for the model.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Stiebel Eltron Tempra Plus 36 kW, tankless electric water heater with Self-Modulating Power Technology & Advanced Flow Control


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Product guides and documents

Product Description

Product Description

When compared to gas type thankless water heaters, Stiebel Eltron tempera 36 plus cost less and is less expensive to install, since it does not require venting parts.

From the Manufacturer

The Tempra® Plus is the most technologically advanced tankless water heater available on the market today. Advanced Flow Control is exclusive to the Tempra® Plus and ensures a constant temperature output no matter how great the hot water demand is. Advanced Flow Control technology works by automatically adjusting the flow of water to eliminate unpleasant temperature fluctuation. What that means to you is a consistently satisfying experience every time, all the time !

Important information

Wattage

26000 watts

Bulb Voltage

240 volts

Customer reviews

4.4 out of 5 stars
4.4 out of 5
801 global ratings

Customers say

Customers like the quality, temperature, ease of installation, storage space and efficiency of the water heater. They mention that it works great for taking showers, has no problems at all and that the water temperature is 99% steady. They also appreciate the dramatic space saver and the fact that it can recapture virtually all of the old tank heater's water. Overall, customers recommend the product for its quality, efficiency and storage space.

AI-generated from the text of customer reviews

262 customers mention239 positive23 negative

Customers are satisfied with the quality of the water heater. They say it is a very good and dependable unit, that performed very well during the first week of use, and had no problems at all. They also say it works great for taking showers and washing dishes, and is great for large applications. They feel that it is well made and will last for years.

"...This unit, SE Tempra 29 Plus, has performed very well during the first week of use...." Read more

"...I installed this unit myself and had no problems at all...." Read more

"...All in all, I give it 5 stars because of its superb performance, efficiency, ease of installation, and high quality design + construction." Read more

"We have had this for over 6 months so far and it's been fantastic!! Did the install myself. You will need 200 AMP service to run this!..." Read more

233 customers mention185 positive48 negative

Customers like the temperature of the water heater. They say it's able to get the water up to temperature without issues, and performs reasonably well. They appreciate the digital read out to display the temperature, and there is no cold blast of water. The water temperature is 99% steady, and the bath faucet is nice and warm. Customers also say that the water is adjustable and provides endless hot water.

"...pretty cold temps outside but the Tempra 24 keeps up and can kick out enough hot water even on those really cold mornings when you need a good HOT..." Read more

"...a few weeks rembered the Delta shower fixture has the ability to set specific temps. I made the adjustment and boom, hot water!..." Read more

"...We've had it up and running for 6 months now and enjoy endless, temperature adjustable, hot water...." Read more

"...It's supposed to automatically adjust to keep the temperature constant but I do sometimes notice variations...." Read more

132 customers mention113 positive19 negative

Customers like the ease of installation of the tool. They say that the install seems simple at first glance, but there are many details that can cause problems. They also say that it's not hard at all, the connections were rather easy on the plumbing side, and it' s hooked up correctly. They add that the product is excellent and sturdy, and up to code. Overall, customers are satisfied with the ease and speed of installation, and recommend it to others.

"...Some other positives:Easy installation...." Read more

"...give it 5 stars because of its superb performance, efficiency, ease of installation, and high quality design + construction." Read more

"...Very simple and spot on! I did call them about the water softner or other options, they were very nice and helpful...." Read more

"...Very easy. Last thing, for those of you doing the math, yes this things sucks electricity like you wouldn't believe...." Read more

79 customers mention72 positive7 negative

Customers like the storage space of the water heater. For example, they mention it's a dramatic space saver, great size for a small apartment, and big enough for their whole house. That said, some say it'd never run out.

"...Saves space, No Footprint! This unit was ideal for my house. I had a 50gal tank in my half-bath and it was an eyesore and a space hog...." Read more

"...Takes up no space!Some people on here say to get your flow rate, temp rise, bla bla bla...." Read more

"...the unit is quite modern and microprocessor controlled, extraordinarily compact and well-made; the product literature is peculiarly "undersized"..." Read more

"...Its heating capacity fits my house perfectly. I have 3 showers and tubs in my home...." Read more

74 customers mention54 positive20 negative

Customers like the efficiency of the water heater. They say that it works well, saves them an average of 30% on electric, and has a marginally higher energy output. That said, they say it has lowered their bill and has enough power to heat 2 showers and a load of laundry.

"...Could not be happier. And, I have noticed a lower electric bill! This did replace a 50 gallon water heater that was in a closet under our stairs...." Read more

"...This heater has a maximum amp draw of 120 amps...." Read more

"...it to have endless hot water, extra room in your closet and lower electricity costs...." Read more

"...It does draw a lot of current, but not 150 amps. We have it set at 106F, which is the temperature I prefer in the shower...." Read more

55 customers mention42 positive13 negative

Customers like the value of the tool. They mention that it saves big money, and is well worth the money spent.

"...Stiebel Eltron is a high quality German made unit, however, fire alarms are inexpensive and make sense as a precaution." Read more

"...Now is $50 more expensive than the Powerstar, quality still worth the investment!" Read more

"...For my application (hydronic heat) this unit is a huge cost saver.. A regular 55 gal hot water heater would need to be powered 24/7 in the fall -..." Read more

"...But not economically efficient. This is due to their initial expense...." Read more

42 customers mention23 positive19 negative

Customers are mixed about the durability of the water heater. Some mention that it has held up really well and constantly produces enough hot, while others say that it only lasted maybe six months, it was a huge waste of money, and the guide book was not very good.

"...This unit in particular is a very good and dependable unit...." Read more

"...It started to throw the breakers so we opened it up and saw there was a small leak inside and it was effecting the electronics...." Read more

"Terrifically well-built device, obviously european...." Read more

"...It's just a waste of money and energy. Highly recommend and have told family and friends about this company and tankless water heaters." Read more

26 customers mention12 positive14 negative

Customers have mixed opinions about the pressure of the water heater. Some mention that the water pressure is wonderful and easily fills a large tub in normal conditions, while others say that there is a decrease in water pressure when the hot water is on.

"...shower while the washer is running, there is some pretty dramatic pulsing on the water pressure...." Read more

"...This item provides good water flow and heat to my shower which is 20ft approx away from the heater at 122 degrees...." Read more

"...there is a bit of a pressure drop as the unit throttles down to compensate...." Read more

"...I have not noticed any reduction in water flow or temperature fluctuations...." Read more

Very happy with my purchase.  Added a photo showing our savings now compared to others with similar homes.
5 Stars
Very happy with my purchase. Added a photo showing our savings now compared to others with similar homes.
Purchased the unit in April for our new to us home which had been stripped bare by vandals prior to our getting it. When deciding between a tank or the on demand, we went with the Stiebel.Installation was simple once we were able to get the line to the box from the breaker panel - it literally was a screwdriver only installation at that point.So far the unit has worked flawlessly (though if we max things out by running a lot of hot water at once) there is a bit of a pressure drop as the unit throttles down to compensate. We run a well (50psi max pressure) so I'm happy enough.Despite having its own dedicated line, I do notice an overall power dip when the hot water engages. Not enough to be a concern, but enough to notice. We run LED lights - it would be more noticeable with incandescent.I'm hoping for long term savings with this unit - my basement is damp, so a tank would tend to last about 5 years max where with care the Stiebel should last decades.*********************So its been over a year now, and I have some observations about how to maximize the savings with this beast.First, if you have a faucet that mixes your hot and cold water (as opposed to two separate knobs) you're going to want to swap them out. Since the Stiebel doesn't care if you're running a small amount of hot water as opposed to opening it wide open, if you aren't careful to ALWAYS run just the cold water, you'll wind up engaging the hot even when it's not needed whenever you go to wash your hands or rinse something in the sink. Yea, it may only be for 30 seconds, but multiply that over the course of a day then by the course of your electric bill cycle, and it adds up. We probably paid for the new faucets over the course of savings in just a few months.Second, compare your water bill rate to your electric bill rate. Odds are running an extra couple gallons of water will be far, far less than the electric rate running your heater. With that in mind, de-aerate your taps. The aerator is designed with a conventional hot water heater in mind, so by reducing water flow it conserves water that otherwise would be wasted. With an on demand system, you want to minimize the time needed to fill your sinks. Removing the aerator means that your flow is maximized, which reduces the time you're burning electricity.Just by using these two simple steps, we cut our overall electric use by about a third compared to this time last year when we had the aerators on and the single faucet systems in place.One other observation - the instructions say 'do not freeze' - we had heating issues a few times over the winter up here in Maine and froze our unit up solid a couple times. It seems to have come out of the deep freeze without any noticeable problems. I wouldn't recommend freezing your pipes, of course, but the system seems able to handle it.
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Top reviews from the United States

Reviewed in the United States on August 13, 2018
Style: Tempra 29 Plus (Discontinued Model)Verified Purchase
5 people found this helpful
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Reviewed in the United States on October 14, 2014
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Top reviews from other countries

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Ulises de la Garza
5.0 out of 5 stars Calidad y rapidez en la entrega felicidades
Reviewed in Mexico on August 31, 2018
Style: Tempra 20 Plus (Discontinued Model)Verified Purchase
Drhombeat
5.0 out of 5 stars It does the job pretty well !
Reviewed in Canada on November 14, 2012
Style: Tempra 20 Plus (Discontinued Model)Verified Purchase
4 people found this helpful
Report
Sharon Laughlin
5.0 out of 5 stars Came in good time, in perfect shape and so far working ...
Reviewed in Canada on December 8, 2016
Style: Tempra 20 Plus (Discontinued Model)Verified Purchase
Fernando Segovia
5.0 out of 5 stars Glad I purchased this heater for my country home
Reviewed in Canada on January 26, 2018
Style: Tempra 15 Plus (Discontinued Model)Verified Purchase
2 people found this helpful
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Tim James
5.0 out of 5 stars Great addition
Reviewed in Canada on May 1, 2020
Style: Tempra 24 Plus (Discontinued Model)Verified Purchase