Stiebel Eltron Tempra Plus Tankless Electric Water Heater Review

Product Name:Tempra Plus Tankless Electric Water Heater
Brand:Stiebel Eltron
Power Source:Electric
Use Type:Indoor
Capacity:2.0 GPM
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The Quick Review

The Stiebel Eltron Tempra Plus is an extremely popular tankless electric water heater, with over 475 confirmed purchases, 4.5 average rating and over 195 answered questions, this is one of the safest purchases you can make when it comes to water heaters. It comes in many electrical kW capacities, from 12 kW to 36 kW. It is one of the most efficient tankless water heaters available, with one of the best flow rates for the price, maxing out at about 2.0 GPM with incoming water temperatures of 67F or above, which is great for the Southern United States.


This tankless electric water heater has one of the highest GPM flow rates available in the market, with 2.0 GPM at water temperatures at 67F or above, which is a full 0.5 GPM above the nearest competitor.


Most people will recommend a professional installation of this unit. It is a higher tech unit, slightly more expensive, and with that, more complicated than traditional electric tankless water heaters. While some DIYers have reported successful installation, the majority do recommend professional installation.

There is a great installation video that you may want to review before you purchase, planning to install it yourself:


This product is for those who are looking for the most powerful electrical tankless water heater available, and are not concerned with paying a little bit more for that luxury. All electrical tankless will save money in terms of energy savings, but this unit uses more power than the competition. With that, the direct value isn’t as good as other units, but if it’s the most powerful you’re looking for, the is the best value heater.

The Misses

By far the biggest miss here is the price, which can be up to twice as expensive as a similar, less powerful unit. We would like to see the price come down a bit, although it is rightly more expensive since it is more powerful than the median electric tankless market.

In addition, we would like to see innovation in the ability to install the unit for the average DIYer. Many units are quite easy to install, and this one seems to be overly complicated for no understandable reason.

Our Recommendation

This unit is ideal for someone with extra money to get the most powerful electrical tankless water heater available, otherwise we would recommend a more reasonably priced unit.

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