Stiebel Eltron Tempra 24 Plus Whole House Tankless Electric Water Heater

Stiebel Eltron Tempra 24 Plus is what every home needs. Tankless water heaters are getting more and more popular in the USA. The price you pay for the new tankless water heater is dropping every day. That’s the main reason why many folks now consider tankless water heater instead of a tank water heater. Stiebel Eltron is a well known Germany based water heater manufacturer.

Stiebel Eltron Tempra 24 Plus Whole House Tankless Electric Water Heater

With this water heater, you will never get out of water. Ok, maybe this water heater will take some time to heat the water since the heating source is electricity, but on-demand heating will save you money in the long run.

Learn more about Stiebel Eltron Tempra 24 Plus by reading this review.

Stiebel Eltron Tempra 24 Plus Features

Temperature ControlDigital temperature control. Voltage : 240 Volt or 208 Volt.
Save MoneySave at least 15-20% on the hot water portion of your electric bill.

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Size Matters

Tempra 24 Plus is not a big water heater; it is as small as the average briefcase. Thanks to slick design, this water heater can fit any home. And on top of that, you won’t need to do any demolition to your home because Tempra does not require any ventilation because it isn’t releasing any harmful gases.

150 AMP Minimum Electric load

For most of the water heaters powered by electric power, you will need a higher electrical load. Tempra 24 Plus requires a minimum of 100 AMP power load. This model is using two circuits, each with 50 AMP power. It uses 24Kw at 240V.

In normal weather conditions, this water heater can make up to 5 gallons of hot water per minute. However, in cold areas where water temperature rarely goes above 15 Celsius, you can only get 2,5 gallons of water per minute. For cold places where the outside temperature drops below zero, this water heater is not recommended.

Saves Energy

With this water heater, you will still save energy even if it uses a huge electric load. The reason for that is self-modulating technology. This water heater is rated at 99% energy efficiency. If you compare that with a tank water heater, you will see a huge difference.

Whole house water heater 

There is no way this electric water heater can provide hot water for an entire family living in a large house. It is just not powerful enough. Even small homes in a cold climate can’t benefit from this water heater. 

However, if you live in a moderate to hot climate, then this affordable yet straightforward water heater will be enough for a whole house as long as the house is average size.

Easy to Install

Tempra is extremely easy to install. It comes with the user manual, where everything is explained in detail. Since the ventilation is not required, then you can even install it on your own if you have the knowledge to understand the manual.


The German manufacturer is building water heaters with customers on its mind. Tempra is made with high-quality material which guarantees a long lifetime. With Stiebel Eltron, you receive seven years warranty on leakage and three years warranty on parts. As you can see, the manufacturer believes in its product and give a generous warranty. In other words, Tempra can serve you for many years.

Digital Temperature

With digital temperature monitoring, you can see in real-time water temperature and adjust accordingly. You can switch between handwashing mode, residential mode, and extremely hot mode, which is not recommended.


  • Cool and slick design
  • Saves energy
  • Affordable
  • Durable
  • German Quality


  • Heavy Electricity Load Requirement


Stiebel Eltron Tempra is an excellent tankless water heater that can serve hot water in the whole house if you live in a tropical climate like southern parts of the United States. In such an environment, Tempra can serve hot water even if you have a large family and two bathrooms. 

In colder zones, Tempra 24 can still serve a small house with hot water is still possible, but the utility bill for power will be higher. In icy areas like Alaska, you can still use Tempra but don’t expect high performance and low energy bills. 

Overall, Tempra is without question a better choice than any other traditional tank-based water heater. With Tempra, you save money and use water only when needed. If you live alone, Tempra can make a significant difference in your utility bill for hot water.

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