Stiebel Eltron Tempra 24 Plus Tankless Water Heater Reviews - E-Trine

Stiebel Eltron Tempra 24 Plus Tankless Water Heater Reviews
Product Reviews Tankless Water Heaters
1038 Views 0 October 14, 2019

If you are buying a new apartment, or just renovating your own, getting a water heater is something you have to do. Not to mention the possibility of your water heater simply dying on you. However, buying one can be quite tricky. There are many things you have to consider and most people just don’t know enough to help you. So, naturally, you took it up online to find your answers, and you found this heater. Of course, reading through Stiebel Eltron Tempra 24 Plus tankless water heater reviews is probably the best way to see if it will suit you.

Tankless water heaters, such as this one are becoming increasingly popular. They work directly and don’t require a tank to keep the water hot. That means they can provide you with a lot more hot water when you need it. It also means that tankless heaters don’t waste your money by preheating the water. And the best part about tankless heaters is that you can’t run out of hot water while taking a shower. So, buying one, in general, seems to be an excellent choice. And, after going through multiple Stiebel Eltron Tempra 24 plus tankless water heater reviews, we believe we have a winner.

What Should You Consider While Buying a Tankless Water Heater?

As we said, there are a lot of things to bear in mind while looking for a water heater. Of course, the primary focus should be on the energy efficiency of the heater. After all, you don’t want to be bleeding money due to a bad choice. However, that is far from being the only factor you have to consider. You should also check out the safety features, the water flow, and many other factors. So, let’s delve a bit deeper into this and see whether or not Stiebel Eltron Tempra 24 plus is the best heater for you.

Stiebel Eltron Tempra 24 Plus

stiebel eltron tempra 24 plus tankless water heater reviews

Water heaters always were to blame for large portions of your electric bills. So, getting a new, high-tech heater can help you a lot in the long run. And, buying this tankless heater can help you cut down up to 20% of your water heating expenses. As a matter of fact, Stiebel Eltron Tempra 24 Plus is one of the leading water heaters right now. It is smart, sturdy, and definitely worth the money.

It doesn’t take a lot of effort to find reviews praising this product on websites like Amazon. And it makes sense. Stiebel Eltron has been around for a while now. In fact, they have been producing high-quality products since 1924. And, you can be sure that a German company with a century of experience will deliver in terms of quality. However, we usually don’t like just reading reviews of others. So, we took a look ourselves to see how good this heater is.

The Basics

Before we get to various specifications and features this water heater provides, we will cover some basic info. The external dimensions of this product are 20.1 x 21.7 x 9.6 inches, and it only weighs 16 pounds. That already makes it one of the lightest water heaters we have ever seen. It is also one of the most technically advanced models you can find. You can set the water temperature to range from 86°F to 140°F.

stiebel eltron tempra 24 plus specs

However, it is not the prettiest model out there. While it is by no means ugly, it does have a blocky design. Of course, this doesn’t matter as it is an incredibly powerful heater. And, lastly, there is no need to set up an outside vent for this heater, unlike for gas-type ones.

Power and Energy Efficiency

And here we are, at the most important feature you want to know about. And thankfully, this little unit did not disappoint us in the slightest. In fact, during our tests, we couldn’t believe how good it works. Namely, we set a shower and two faucets to run at full blast with the water temperature of 115 degrees Fahrenheit. We didn’t notice any issues. The water was almost too hot to touch, and the pressure didn’t drop. That is simply the 24kW power this unit pumps out.

But what impressed us the most in regards to this heater is how efficient it is. Namely, this heater boasts an incredible energy efficiency rating. To be precise, the energy efficiency of this heater is 99%. So, this heater is more than likely to end up saving you a lot of money in the long run.

You should also bear in mind that this heater requires a minimum water flow to turn on. That is an excellent feature that will help you save a lot of money. However, if your water flow is below half a gallon per minute, the heater will not turn on.

Water Flow

This small, yet powerful unit will provide around 5 gallons per minute of water flow. That means that there is always going to be enough hot water in the system for an average family. In fact, as we already said, we didn’t overtax the system with three users at the same time. To be fair, we didn’t try much harder than that, so we don’t know exactly where the limits are for an average user. However, Stiebel Eltron did their research and found that this water heater can support up to 10 bathroom sinks running at the same time with the water temperature of 105 degrees Fahrenheit.
Tempra Plus with Advanced Flow Control

Another feature this water heater boasts is their excellent flow control. Namely, even if you find a way to overtax the system, it will still work. Most heaters will simply fail to provide you with water that is hot enough. However, Stiebel Eltron Plus heaters will instead reduce the flow automatically to keep the temperature at consistent levels. In our experience, it is much better to lose a bit of pressure than to get a surprise cold shower suddenly.


The first thing we have to note is that the entire heater boasts seismic-proof construction. That, as you can imagine, can definitely come in handy for people who live in some regions of the States. Of course, we also had to open the cover up to take a look inside. And, one thing we noticed right off the bat is the thermal cut off. This safety feature is there to interrupt the current if the unit starts overheating.

completely silent while operating

And, since this is not a gas heater, there is not much else for you to worry about. Overall, this unit definitely passes all of the safety checks we have in mind. However, we would always recommend hiring a professional to install the heater for you.


The temperature is incredibly simple to set. You have a digital display that shows your settings and a knob you can use to set the temperature. From there on, it is all up to the microchip technology. The temperature control system will make sure that you always get what you want.


In all honesty, we don’t believe we have ever seen a water heater that is easier to maintain. In fact, there is almost no need for regular maintenance at all. However, to extend the life of the heater itself, we would recommend occasionally cleaning the aerator of the faucets. We would also suggest removing dirt that might build up on the filter screen in the unit itself.

However, if there is a malfunction, do let professionals handle it. After all, Tempra 24 Plus is a rather advanced piece of technology.

The Warranty

Stiebel Eltron is a company with a long-standing history of providing us with reliable products. And, as we all know, you can survive long as a German company if you don’t stand behind your products. For that reason, Stiebel Eltron offers a 3-year-warranty on parts. They also guarantee there will be no leaks. The leakage warranty will cover your heater for seven years.



  • Their exclusive flow control guarantees consistent water temperature, even when you are overtaxing the system
  • An excellent warranty on parts (3 years) and an even better one for potential leaks (7 years)
  • Nigh-Unbeatable Energy Efficiency rate of 99%. That can lead to a noticeable reduction of your monthly electricity bill
  • Water flow of 5.5 gallons per minute



  • It is relatively expensive
  • You might have to hire an electrician for the installation, as well as a plumber
  • It’s not ideal for hard water conditions

Final Verdict

Stiebel Eltron Tempra 24 Plus Tankless Water Heater

We have gone through many Stiebel Eltron Tempra 24 Plus Tankless Water Heater Reviews, and they all agree on one thing – this is an excellent choice for anyone looking for an energy efficient water heater. It is small, efficient, and completely quiet when running, while, at the same time, it is also incredibly powerful.

powerful yet completely quiet when running

We especially love their water flow solution that makes sure the temperature stays consistent. So, if you are looking for a water heater that will give you an endless supply of hot water while not overtaxing your monthly budget, Tempra 24 Plus might be the perfect choice for you. In the end, of course, the choice is up to you. The only thing we can say is that it definitely deserves a 5-star rating we are giving it.

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