Stiebel Eltron Tempra Review

Stiebel Eltron Tempra is designed as the electric tankless water heater with the goal to replace the conventional tank type heater for the multiple point-of-use applications and whole house residential water heating.

Advantages

stiebel eltron tempra is tankless electric water heaterTempra as the electric tankless water heater is the most popular model from Stiebel Eltron. Tempra is known for its advanced and reliable technology, great performance and design that reduce the energy consumption up to 20%, when compares to the standard tank type.

Due to its tankless technology Stiebel Eltron Tempra provides an endless hot water supply and occupies much less space than conventional type.

One of the main advanced features Tempra has to offer is the thermostatic temperature control which allows you an accurate, constant and reliable temperature control and all day comfort.

Stiebel Eltron's microprocessor technology allows an accurate temperature control, thanks to the readings of the flow and temperature sensors. You can set the temperature of hot water between 86 F and 140 F while the unit modulates the power to prevent the temperature fluctuation and disrupting the comfort. Based on the set temperature, heating elements of Stiebel Eltron Tempra electric models are engaged in stages providing heating power from the minimum to maximum.

Stiebel Eltron Tempra offers compact and sleek design with the sturdy coated steel encasing, which allows installation for both residential and commercial use, almost anywhere inside your home, condo, apartment or cottage, office... and without occupying valuable space.

Tankless Water Heater Types

Two series is what you fill find in the offer from Stiebel Eltron:


Stiebel Eltron Tempra series

  • Stiebel Eltron, Tempra 12 provides the min. power of 9 kW when working on 208 V, and max. power of 12 kW when on 240 V. Tempra 12 is using one heating module that allows a max. temperature rise of 27F at the water flow of 3 gpm. It is used mainly as the point of use water heater in warmer areas of US and for one-bath homes.

  • Tempra 15 has the min. power of 10.8 kW when working on 208 V, and max. power of 14.4 kW when on 240 V. Tempra 15 is using two heating modules that allow a max. temperature rise of 33F at the water flow of 3 gpm. It is used as the point of use water heater but it can be also used as the whole house heater in warmer areas or for one-bath homes.

  • Tempra 20 has the min. power of 14.4 kW when working on 208 V, and max. power of 19.2 kW on 240 V. Stiebel Eltron Tempra 20 is using two heating modules that allow a max. temperature rise of 44F at the water flow of 3 gpm. Stiebel Eltron Tempra 20 tankless water heater is designed for applications with the moderate hot water rate.

  • Stiebel Eltron, Tempra 24 has the min. power of 18 kW when working on 208 V, and max. power 24 kW on 240 V. Tempra 24 is using two heating modules that allow a max. temperature rise of 54F at the water flow of 3 gpm. Tempra 24 is the most popular Stiebel Eltron tankless water heater size, used mainly as the whole house water heater for higher flow rates in warmer and colder areas (it is used for standard residential home sizes of 2-3 bath).


where to use stiebel eltron tempra in North America and based on the climate

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Tempra Plus series

Stiebel Eltron Tempra Plus models are equipped with the Advanced Flow Control technology that will adjust the flow rate of the water when you exceed the capacity of the system. The result is the precise temperature control at the consistent level.

This technology uses the microprocessor which detects that the flow rate has changed, which allows Tempra Plus models automatically to adjust the flow of water when needed. This is especially important if you live in the colder area, and if you are not able to install larger model.

Tempra Plus is more advanced than standard model thanks to the advanced flow control technology and digital temperature display with very precise temperature control.

  • Stiebel Eltron, Tempra Plus 12 is providing min. power of 9 kW on 208 V, and max. power of 12 kW on 240 V. It has one heating module and its maximum temperature rise at 3 gpm is 27F. Tempra 12 Plus is recommended for homes situated in the warmer areas for low flow applications, like one kitchen sink or bath at the time.

  • Tempra Plus 15 is providing min. power of 10.8 kW on 208 V, and max. power of 14.4 kW on 240 V. It has two heating modules and its maximum temperature rise at 3 gpm is 33F. Tempra 15 Plus can be used for homes situated in the colder areas for point of use, low flow applications. It can also be used as the whole house water heater but only in the warmer southern areas of US and Caribbean.

  • Tempra Plus 20 is providing min. power of 14.4 kW on 208 V, and max. power of 19.2 kW on 240 V. It has two heating modules and its maximum temperature rise at 3 gpm is 44F. Tempra 20 Plus is recommended for homes situated in the warmer areas (e.g. southern parts of US), as the whole house water heater, or for homes with the moderate water demand (e.g. 1-2 bath homes).

  • Tempra Plus 24 is providing min. power of 18 kW on 208 V, and max. power of 24 kW on 240 V. It has two heating modules and its maximum temperature rise at 3 gpm is 54F. Tempra 24 Plus is recommended for homes situated in the colder areas or for homes with the high water demand (e.g. 2-3 bath homes).

  • Tempra Plus 29 is providing min. power of 21.6 kW on 208 V, and max. power of 28.8 kW on 240 V. It has three heating modules and its maximum temperature rise at 3 gpm is 66F. Tempra 29 Plus is recommended for homes situated in the colder areas or for homes with the high water demand (e.g. 3-bath homes).

  • Tempra Plus 36 is the largest model from Stiebel Eltron, providing min. power of 27 kW on 208 V, and max. power of 36 kW on 240 V. It has three heating modules and its maximum temperature rise at 3 gpm is 82F. It is designed for homes situated in the colder areas with the high water demand (e.g. 4-bath homes).

Note: Keep in mind that a minimum water flow is needed to activate the water heater.

All Tempra tankless water heaters are the same size, same 99% efficiency, same 3/4" NPT pipe fitting, but with the different water flow, quantity of heating modules and power output.

Customer Reviews

Pros

  • Stiebel Eltron Tempra doesn't take up a huge space.

  • It was easy to install and easy to use.

  • Dial on the front of the Tempra unit allows you to adjust the temperature in seconds and precise.

  • Saving on the electric bills.

  • Component parts are made of a material that is corrosion resistant.


Cons

  • Short three year warranty.

  • 36 kW model requires 3X60 amp breaker, which is a lot of panel space. You have to upgrade the electrical panel to support the Tempra 36.

  • Installing a Tempra 24, for example, requires an expensive 2x6 wire.

  • Some complaints were related to the insufficient hot water for two showers and low performance (warm instead hot water).

  • Tempra 24 doesn't work so well if the incoming water is cold. It is better for warmer climate.

Stiebel Eltron Tempra tankless water heaters are top of the line electric heaters, known for the high quality and reliable performance. Tempra was designed by the German manufacturer Stiebel Eltron, a leader in electric water heating industry. It is made in Germany also.

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