If you are a fan of German technology, you know how solicitous they are to make the advanced product. Stiebel Eltron Tempra 29 plus Electric Tankless Water Heater is the second-highest capacity Tempra series water heater from Stiebel Eltron. This German company has 12, 15, 20, 24, 29, and 36 plus these six versions of Tankless Water Heater under the series of Tempra, for different sizes of need. Tempra 29 is ideal for a small home where the temperature drops up to 40 degrees or more; at this inlet temperature, it produces 3 Gallon per minute. It is also suitable for the two-bathroom house in inlet temperature 55 degrees to 75 degrees. A standard shower with 2.5 GPM can work with a classic washbasin with 0.5 GPM flow.
What Is Interesting About the Stiebel Eltron Tempra 29 plus?
Same temperature despite the change in flow
In the case of tankless water heaters, the temperature can vary as the flow rate changes. This can cause a distorted situation, especially if you are in the middle of a bath. Stiebel Eltron realized this problem and introduced Tempra Advanced Flow Control technology. If water is freezing and comes with greater flow, Tempra flow control reduces the flow to keep the temperature hot as selected even though the water pressure becomes low.
Endless hot water
Stiebel Eltron Tempra 29 plus Electric Tankless Water Heater has innovative microprocessor technology in a Tempra® that allows you to set the knob and get that temperature every time a hot water faucet is opened. Stiebel Eltron’s Electronic Temperature Control ensures a steady output temperature when the flow is uncontrolled; their innovative microprocessor technology monitors the heat and maintains it endlessly.
No venting required
I used to have an indoor gas-fired tankless water heater. It was excellent, but I did not quite like the idea of gas emissions through my home roof. Also, setting the unit in a place that maintains side spaces safe for exhausting was quite tricky for my home size. Tempra Plus 29 kW is much better because it needs no venting. It is an all-electric water heater, so you can install it anywhere without being troubled about the air pollution and venting space requirements.
Good looks
Tempra Plus 29 kW with a narrow outlook with 21.8 x 19.2 x 9 inches and 17.4 pounds. Compared to the conventional water heater, it saves 12 cubic feet and can fit into any corner of your home.
Digital temperature control
Tempra® Plus models have convenient digital temperature control, offering a scale of 86°F (30°C) to shower temps of 107°F (42°C), up to 140°F (60°C) for commercial applications. Once you choose a temperature for the whole bath, you are guaranteed to get it until the end. However, more electric consumption will occur if you select a high temperature.
Pros
- Easy Installation
- Works with both 208/240-volt standard electrical wiring.
- Three-year limited warranty for both domestic and commercial usage
- It is ETL Listed (US & Canada) – which means it meets all applicable standards, as well as ANSI/UL 499 (USA) and CSA-E335-1/3E-94 (Canada)
Cons
Very bad with challenging water condition
It can work at your home if you have water with PSI of more than 150 and less than 300. Which is quite a high standard, so do not bother to install it with PSI less than or beyond that range?
Solution
Water hardness is something responsible for many water fixtures to fail early. Test your PSI if your institutions are dying or having scruples whether your water quality is the villain. When your water hardness exceeds 7 grains per gallon (GPG) or 120 mg/l (ppm), it is called hard water and requires special treatment. Before going for Stiebel Eltron Tempra 29 plus or any other water heater, you should consider complicated water treatment. Hard water causes premature failure of water fixtures owing to mineral build-up inside the heating module and other components. Also, the water flow will be optimum once your water is sorted, and institutions will run longer and complain-free.
It functions poorly at the beginning
It does not give you hot water initially; you have to wait 10 seconds or more for the hot water.
Solution
A flow sensor senses the minimum flow and starts the heater burner. This has a right side and a wrong side; the right side is- It reduces your electricity cost than the conventional heaters by not being at a function when idle, demerit is it makes you wait 5-7 seconds at the beginning for hot water if you can install a recirculation pump from the market which cost much less than a heater than such waiting period will evaporate. It is a standard issue with Tankless units.
Frequently Asked Questions
Does it take a while to heat up?
Yes, it does. If you live in freezing weather, it may take some more time to heat up, but once the desired temperature is achieved, it works flawlessly to keep it hot until the end.
How many amps does it need? How many breakers should I install with it?
It needs 3 x 40 AMP breakers, three units of 40 amp breakers. It requires a maximum of 120 AMPS when used with a 240v line and 105 AMPS 208v cord. It needs 3 x 8 AWG copper wire
How much GPM is required for activation?
The burner starts when- 0.77 GPM /2.9 LPM minimum flow is achieved.
How many GPM does it offer? If I want a 105°F outlet temperature.
Your inlet temperature is the deciding factor of how many GPM it will produce for a desired 105°F outlet temperature; at 40°F, it gives 3 GPM; at 55°Fit can produce 4 GPM; at 65°F, it provides 5 GPM. I hope you got the picture
Conclusion
Tempra 29 plus Electric Tankless Whole House Water Heater is ideal for a medium-sized home with 2 to three bathrooms. It has 99% efficiency. At a temperature of 35-40 degrees, it is usable for a single appliance at a time (for a faucet, two faucets, or one faucet, a washing machine/dishwasher can work with 3 GPM). If used for a dedicated shower in colder weather, it works perfectly. If your temperature is beyond 50-degree f, this can do wonders; for best results, I recommend, do not overburden it with multiple appliances. So if you have space challenges and moderate needs, this smart water heater is perfect, especially accompanied by Solar Thermal Hot water preheating for freezing weather.