Review: Stiebel Eltron Tempra 24 Plus Electric Tankless Water Heater

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One of the biggest complaints that plagues the tankless water heater industry is product consistency. Many makes and models just don’t have the power or durability to stand up to the needs of an entire home. The Stiebel Eltron Tempra 24 Plus Electric Tankless Water Heater is one of the appliances that will put those complaints to rest. It features a small, sleek profile which allows you to fit it almost anywhere.

In return, the average homeowner will be able to save up to 20% on the hot water portion of their utility bills every month. If you’re looking for a water heater which offers a proven reliability and doesn’t require venting thanks to its electric design, then you’re going to want to give this appliance a closer look.

The Advantages of Choosing the Stiebel Eltron Tempra 24

Many hot water heaters that are tankless and electric tend to operate on lower PSI levels. It’s not that unusual to see a rating between 80-120 PSI for models that are promoted as a whole-home option. The Stiebel Eltron Tempra 24 offers users a working pressure of 150 PSI that remains very consistent.

It does require a 2×50 minimum circuit breaker to be properly installed, pulling 208/240 volts. When properly installed, it can achieve a maximum temperature increase of 92F degrees when measured from a single faucet or fixture.

The size of this tankless water heater is surprisingly small. It is just over 15 inches high, about 16.5 inches wide and 14.5 inches in depth. It really can go anywhere you need it to be for your plumbing system support. Despite its size, there is a comprehensive set of digital controls that can be accessed so the perfect amount of hot water can be obtained every day.

Let’s Talk About Thermal Cutoffs with the Stiebel Eltron Tempra 24…

The most common complaint about this specific Stiebel Eltron tankless water heater is that the thermal cutoff tends to wear out prematurely. Numerous reasons are cited, included high water pH levels, continuous flow in the plumbing system, or faulty equipment.

This tends to happen more often than not because of scale in the water. High mineral content can cause sediment to get lodged in the system, which then creates a connection between the thermal cutoff switch and the flow rate indicator. Under normal use, this water heater disengages when a flow rate of 0.5 GPM or less is registered. With added scale, it throws off the flow rate sensing equipment, which then triggers the emergency backup option.

Flushing the system should get rid of this issue if encountered, but it must be done proactively instead of reactively. All tankless water heaters should be flushed at least once per year. In this instance, if there is a pattern of heavy scale, it may need to be done every 3-6 months instead.

We found the Stiebel Eltron Tempra 24 Electric Tankless Water Heater to be a useful appliance that operated consistently well. It may have certain challenges for some homes, but at the end of the day, it does what it is supposed to do.

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