Stiebel Eltron Tempra 36 Plus Review

Beginner Info, Tankless Water Heater

stiebel eltron tempra 36 plus review
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Are you on the lookout for an unbiased review of Stiebel Eltron Tempra 36 Plus Review?

Well, so here I’m with one of the most awaited posts of this year, the Stiebel Eltron Tempra 36 Plus Review, in order, to help you make an informed buying decision.

Whether you’re a first-time buyer or an experienced professional, the comprehensive buying guide that we’ve come up with, and will share even the minutes of the points that you must know before buying the Stiebel Eltron Tempra plus 36 kW tankless electric water heater.

But, before that, it would be great if you could go through some of the best and most popular tankless heater articles that we’ve for you.


So, without any further ado, let’s begin…

Stiebel Eltron Tempra 36 Plus Tankless Water Heater Review

Even before we start the in-depth discussion about the Tempra 36, I would like to bring to your notice that it is the most powerful model from the brand Stiebel Eltron under the “Tempra Series” product line.

However, if you’re not aware of the offering, then allow me to tell you, that the German brand has 6 models under the Tempra series.

Each one of them caters to a different segment of hot water requirements.

Not only the Stiebel Eltron Tempra 36 but any of the models, be it 12 plus, 15 plus, 20 plus, 24 plus, 29 plus, are known for their efficiency, usability, convenience, and most importantly high performance.

All the models under the Tempra series are highly energy-efficient and popularly known for taking less space along with easy installation.

Whether you won a mid-sized home or a larger one, the Stiebel Eltron Tempra Plus 36 kW tankless electric water heater will take care of your entire family’s hot water requirements.

And, you know what, you don’t have to wait longer for your hot water requirements.

In fact, even the farthest shower or faucet will output the hot water in less than a minute.

What more do you want, huh?

Should I Buy Stiebel Eltron 36 Plus?

Frankly speaking, whether you should buy a Stiebel Eltron 36 plus or NOT, totally depends upon you.

However, I can give you the reasons why you should opt for this idiosyncratic superlative product.

But, before that, let’s have a quick look at the comparison chart of Stiebel Eltron.

Features Tempra 24 Plus Tempra 29 Plus Tempra 36 Plus
kW 24 kW 28.8 kW 36 kW
Max. Amperage Draw 100 A 120 A 150 A
Min. Required Breaker(s) 2 x 50 A DP 3 x 40 A DP 3 x 50 A DP
Min. required wire size and number of runs2 x 6/2 AWG3 x 8/2 AWG3 x 6/2 AWG
Min. recommended household electric service 150 A 200 A 300 A
Min. flow to activate the unit 0.50 GPM 0.77 GPM 0.77 GPM
Check Price On Amazon$$$$$$$$$$$$

From the aforementioned table, you’ll have an idea about the top three Stiebel Eltron models that I generally recommend to my clientele.

Moving further, I’ll try to the best of my capabilities to bring to your notice, some of the best features that make the Tempra 36 plus the best choice for middle to large-sized homes.

And, of course, why should you opt for this highly affordable yet efficient superlative electric tankless heater.

On-Demand Supply Of Water

Unlike a conventional tank-style heater, the Stiebel Eltron Tempra Plus 36 kW tankless electric water heater doesn’t store water so the change of standby heat loss is almost negligible to the environment.

And, as a result, the cost-effectiveness of this little beast increases tangibly because energy doesn’t get wasted in continuously heating the water.

The Stiebel Eltron 36 plus supplies you with hot water on demand with minimal wait time.

What I mean by it is, as soon as you’ll open the tap for the hot water, the electric mechanism expedites the heating process, and you’ll get the water in an epigrammatic span of time.

By doing so, the unit saves you up to 20 percent on your electricity bills as compared to a conventional heater.

Digital Temperature Control

The digital temperature control will help you in adjusting the water temperature as per your requirement effortlessly irrespective of you being a newbie or an experienced buyer.

It offers a scale of 86°F (30°C) to shower temps of 107°F (42°C), up to 140°F (60°C) for commercial applications.

Temperature Consistency

The Tempra 36 Plus is equipped with advanced and innovative technology in order to help you with the best possible user experience.

Most of my clients have appreciated the unit’s ability to throw water at a consistent rate irrespective of a drop in the incoming groundwater.

To be honest, unlike 36 plus, many of the tankless heaters aren’t able to cope up effectively with the flow rate fluctuation resulting in end-user dissatisfaction and discomfort which can be attributed to the different temperatures at varied flow rates.

In fact, the Tempra Advanced Flow Control technology makes every shower special and hassle-free.

You don’t have to worry about the temperature drop of hot water while you’re bathing.

Hassle-Free Installation

Definitely, a differentiating factor, isn’t it?

Since the Tempra 36 plus doesn’t require any venting so installation can be done in an epigrammatic span of time with ease.

In fact, you can free the floor space by wall-mounting this little beast.

By following the set of instructions carefully, you can expedite the installation process on your own with minimal to no guidance.

However, if you’re a first-time buyer, and don’t have any prior experience on how to install an electric tankless heater, then my suggestion would be to get the unit installed by a certified technician.

Moreover, the unit is small, sleek, and compact, so you can easily install it in tiny spaces including unconventional places such as the attic and closet.

It can be easily transported from one place to another, and the credit goes to its weight, shape, and size.

Enticing Look

Yes, you heard it, RIGHT!

The unit gives an enticing look and feels and is nothing less than a premium brand for sure.

Moreover, the Tempra 36 can sync well with the decor of your bathroom, kitchen, or wherever you wanna install it.

Stiebel Eltron Tempra 36 plus with  21.5 x 19.5 x 9.5 inches and 17.6 pounds saves you almost 11 +cubic feet space as compared to the traditional water heaters.

In simple words, it is up to you whether you want to hide this little beast or flaunt it.

Silent Operation

I’ve always preferred the products that are quiet as compared to the ones that make unwanted irritating noise, and if I’m not wrong then you’ll also prefer the quiet products, isn’t it?

The Tempra 36 Plus operates very quietly without producing any noise pollution or takes away your peace of mind.

Energy Saving

Of course, all of us, love energy-efficient and affordable products, right?

The unit comes with a 0.99 energy factor which clearly depicts the energy-saving capability of this little beast.

Not only that but also the unit is equipped with self-modulating technology that helps you in energy saving in both short-term as well as long-term without fail.

Will Stiebel Eltron Tempra 36 plus Serve My Whole House Water Requirement?

To begin with, the biggest downside of buying any tankless electric water heaters is that they are limited in their GPM output, and I believe you’ll agree with my statement.

Moreover, if your hot water requirement is very high then my advice to you would be to go with a gas tankless heater.

But, if that doesn’t seem to you a feasible option you then my advice to you would be to go with a whole-house electric tankless hot water heater such as Tempra 36 Plus.

And, if you’ve made up your mind to dig more into various types of whole house tankless heaters, then my recommendation to you would be none other than Stiebel Eltron 36 Plus Tempra and trust me, there are numerous reasons for it.

If I’m NOT wrong then 36 Tempra Plus easily beats most of its competitors in terms of high GPM, efficiency, performance, and advanced technology.

To be honest, with an 8.0 GPM water flow rate with a 30-degree Fahrenheit rise in temperature, there are only a few electric tankless models and brands that can match the Tempra 36 plus caliber.

So, let’s understand, what it actually means, and how it can be of great help to you.

Suppose the incoming groundwater temperature is 75-degrees so you can set the output temperature to 105 degrees and run two showers, a sink, and a dishwasher simultaneously without you having to worry about running out of hot water.

However, if the incoming groundwater temperature is as low as 60 degrees Fahrenheit, and you want the output water temperature to be 110 degrees, that is, a 50-degree surge, in that case, the flow rate will reduce to 5 GPM.

Don’t worry, even at a 5 GPM flow rate, you can use two showers simultaneously with the help of low-flow showerheads.

So, why buying any tankless heater, you need to be well aware of the incoming groundwater temperature throughout the year so that it would be easy for you to make the right buying decision.

At the same time, it is equally important that the sizing of the Stiebel Eltron 36 Plus is done properly so that you can reap maximum benefits from it.

Self Modulation

As mentioned earlier also, self-modulation technology is definitely that one feature that will grab your eyeballs.

And, please don’t confuse it with advanced water flow control, both are entirely different features, and meant for different purposes.

This technology is used for the purpose of automatically detecting the temperature of the incoming water and using the appropriate amount of energy to heat it to the output set temperature.

The main benefit of the self-modulating technology is that it makes the Tempra 36 Plus more energy efficient as compared to the other electric whole house tankless water heaters that don’t possess this technology.

Power Requirements

I’m assuming that most of you would be aware till now that the Stiebel Eltron 36 Plus Tempra is definitely a powerful electric tankless heater and can suffice your whole house’s hot water requirements, right?

Its power requirement is also idiosyncratic and you need to be well aware of it as well before you make a purchase.

The unit uses 36kW of electricity at 240V, with a 150-amp draw.

It wouldn’t be wrong if I’ll say that at a very minimum you’ll need to have dual pole 50-amp breakers.

Unfortunately, if you don’t have that much from your breaker then you’ll need an upgrade which adds to the installation cost.

If you failed to do so then you risk having your breakers trip every time you use hot water while you’ve other appliances running.

And, I’m hoping that you’ll be aware of the fact that it is a safety hazard to not have enough amperage as well.

Tempra 36 Plus Installation

I know many of you would be eagerly waiting for the discussion related to Tempra 36 Plus, right?

Unlike the commercial tankless water heaters where you need the help of a technician for the installation purpose, the Tempra 36 Plus can be installed on your own if you’re a bit comfortable working with wires and plumbing.

Since venting isn’t required so you can easily install it without any hassle.

I’m attaching a self-explanatory installation video for your perusal.


Warranty is an important parameter that shouldn’t be overlooked.

In simple words, the more the warranty period the better it is.

The Stiebel Eltron 36 Plus Tempra is backed by a 7-year warranty which clearly depicts the confidence and trusts the manufacturer has in its offering.

Just for your information, the quality of the Stiebel Eltron 36 Plus is superlative and the unit may even last for a decade or more.


Like any other high-quality electric tankless water heater, the Tempra 36 Plus doesn’t require extensive maintenance.

All you need to do is to properly operate the unit as per the instructions mentioned in the manual and prevent it from getting misused.

Tempra 36 Plus Specifications

  • 19 pounds
  • 21.7 x 20.1 x 9.6 inches
  • 0.77 GPM Minimum Water Flow Trigger
  • 86°F to 140°F Temperature Range
  • Min. required breaker(s): 3 x 50 A DP
  • Wire Size: 3 x 6/2 AWG

Stiebel Eltron Pros And Loss

The review of the Stiebel Eltron electric tankless heater would be incomplete if we didn’t highlight the pros and cons.

Correct me, if I’m wrong.


  • Small, compact, and sleek design makes it possible to get installed in tiny spaces as well as unconventional places such as an attic, closet, etc
  • The installation process is easy, newbie-friendly, and doesn’t require any venting as such
  • Advanced flow control for high water demand
  • The unit can help you save up to 30% energy costs, and credit goes to auto modulation technology
  • 8 GPM for 30°F temperature rise makes it a good option for even cold climatic conditions


  • The Tempra 36 plus might sounds to you an expensive affair if you’re on a shoestring budget
  • Doesn’t comes with a lifetime warranty on electronics components like the EcoSmart ECO 27
  • 7 GPM isn’t achievable everywhere

Wrapping Up the Stiebel Eltron Tempra 36 Plus Review

First and foremost, I would like to thank you for being with us till the end.

Moreover, I would also like to bring to your notice that we’ve put loads and loads of effort into coming up with this idiosyncratic review in order to help you make an informed buying decision.

Furthermore, if you liked our work and want to appreciate us, then please do share this piece of information with the ones who are in need of it.

After all, sharing is caring, isn’t it?

Cutting long-story-short, the Stiebel Eltron Tempra 36Plus Electric Tankless Whole House Water Heater is ideal for medium to large size homes and can deliver endless hot water effortlessly in any kind of climatic conditions.

Last but not least, the unit is a unique blend of reliability, convenience, efficiency, and high-performance.

How would you rate this product on a scale of 1 to 5 with the latter being the best?

Do let us know in the comment section.