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Stiebel Eltron Tempra 29 Plus 28.8 kW Whole Home Tankless Electric Water Heater

Model # Tempra 29 Plus|Store SKU # 1000782304

Overview

Model # Tempra 29 Plus Store SKU # 1000782304

Stiebel Eltron has been a world leader in advanced water heating technology for almost 90 years. Our engineering excellence and high-quality manufacturing results in products fulfilling the highest expectations of performance & reliability. Tempra Series whole house tankless electric water heaters are 99% efficient and never waste energy storing hot water, but endlessly deliver it as needed. Tempras need no venting. Installation can be close to draw off points, making the wait for hot water as short as possible & maximizing energy savings. Tempras are sized based on the number of bathrooms. Tempras supply water at a constant temperature from 86 to 140 degrees F that is settable on the front panel. We recommend setting the actual highest temperature you use, typically 107 degrees for a shower. Tempra Plus models incorporate Advanced Flow Control that automatically reduces flow to deliver water at the set point if demand exceeds capacity. Regular Tempra models do not have this feature.

  1. Professional installation recommended
  1. Refer to the Tempra Sizing Guide to determine which size you need; call Stiebel Eltron at 800.582.8423 with any sizing questions
  1. Tempra 29 models provide hot water for 2 or 3 bathrooms
  1. Tempra 29 models require 208 or 240 volt electric service, with a maximum draw of 21,600 watts at 208 volts or 28,800 watts at 240 volts
  1. Tempra 29 has a power draw of 120 amps via 3 separate 50 amp breakers and 8 gauge copper wiring
  1. This is a Tempra Plus model that incorporates an Advanced Flow Control to automatically reduce flow to deliver water at the set point if demand exceeds capacity

Specifications

Dimensions

Assembled Depth (in inches)
4.6
Assembled Height (in inches)
14.5
Assembled Weight (in lbs)
17.6
Assembled Width (in inches)
16.5
Packaged Depth (in inches)
16.5
Packaged Height (in inches)
4.6
Packaged Weight (In lbs)
19
Packaged Width (in inches)
14.5

Details

Certified
Commercial/Residential
Residential
Country of Origin
US-United States
Fuel Type
Electric
Indoor/Outdoor
Indoor
Primary Warranty
1-3 Year
Wattage
28800
WH Connection Location
Bottom
WH Profile Type
Tankless

Warranty / Certifications

For warranty information on this product, please call our Internet Customer Service Center at 1-800-435-4654.
Tempra 29 Plus 28.8 kW Whole Home Tankless Electric Water HeaterStiebel Eltron Tempra 29 Plus 28.8 kW Whole Home Tankless Electric Water HeaterStiebel Eltron has been a world leader in advanced water heating technology for almost 90 years. Our engineering excellence and high-quality manufacturing results in products fulfilling the highest expectations of performance & reliability. Tempra Series whole house tankless electric water heaters are 99% efficient and never waste energy storing hot water, but endlessly deliver it as needed. Tempras need no venting. Installation can be close to draw off points, making the wait for hot water as short as possible & maximizing energy savings. Tempras are sized based on the number of bathrooms. Tempras supply water at a constant temperature from 86 to 140 degrees F that is settable on the front panel. We recommend setting the actual highest temperature you use, typically 107 degrees for a shower. Tempra Plus models incorporate Advanced Flow Control that automatically reduces flow to deliver water at the set point if demand exceeds capacity. Regular Tempra models do not have this feature.
Stiebel Eltron
1000782304
Tempra 29 Plus 28.8 kW Whole Home Tankless Electric Water Heater is rated 4.5 out of 5 by 80.
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Rated 3 out of 5 by from Voltage variations make LED bulbs flicker On our new home we took the advice of our contractor, who recommended this unit. It seems to work well & is remarkable compact. I definitely would not recommend it, however, for the following reason: when it is heating water it constantly modulates the voltage for more efficient & consistent heating. The big downside is that if you have high-efficiency LED bulbs in your home, they will flicker whenever the unit runs. This is true for running hot water to wash your hands, bathing or doing laundry.
Date published: 2022-05-10
Rated 5 out of 5 by from The delay in getting hot water to the various taps... The delay in getting hot water to the various taps is about the same as I experienced with my old gas tank water heater, but now I don't worry about using up all the hot water in the tank.
Date published: 2021-11-11
Rated 4 out of 5 by from Rating provided by a verified purchaser... Rating provided by a verified purchaser
Date published: 2021-10-07
Rated 4 out of 5 by from works real good & consistent water temp. It not made... works real good & consistent water temp. It not made in CHINA?
Date published: 2021-03-21
Rated 5 out of 5 by from Great water heater, and an easy one day DIY project.... Great water heater, and an easy one day DIY project. Be sure to do your YouTube research. My home is 1700sq ft, with clothes washer, dish washer, 1 shower, 1 tub/shower, 4 BR sinks, one kitchen sink, and it operates perfectly. It takes a minute to get hot for the BR sinks, but once hot water is flowing it's perfect. We'll see as the family gets older, and demand increases, but I recommend it highly.
Date published: 2021-03-19
Rated 4 out of 5 by from Good quality, easy install instructions. May want to use a... Good quality, easy install instructions. May want to use a pre filter in front of unit. Also, set starting water temperature low, like 109, to prevent thermostats from cycling off and on. Causing shower water going from hot to cold, back and forth.
Date published: 2021-03-07
Rated 5 out of 5 by from Rating provided by a verified purchaser... Rating provided by a verified purchaser
Date published: 2021-01-16
Rated 5 out of 5 by from Installing was easy, directions straight forward. Working great. Installing was easy, directions straight forward. Working great.
Date published: 2021-01-10
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While using hot water, halfway through a shower the water will get cold. I tried the temperature adjustment but that did not work.

Asked by: Cher
How does the unit preform at the other fixtures in your house? IF only having issues in the shower, it sounds like the mixing valve needs to be adjusted behind the shower valve or a shower head that allows more flow rate needs to be installed. Please call our Technical Support Department at 1-800-582-8423 Ext 6 for troubleshooting help if needed. Thank you.
Answered by: Stiebel Eltron Support
Date published: 2022-04-27

What is the maximum input temperature? If I feed this with a conventional tank water heater at 140�f will it damage the system?

What is the maximum input temperature? If I feed this with a conventional tank water heater at 140�f will it damage the system?
Asked by: Everhart
To my knowledge it would simply not kick on if temperature setting was below 140. It don’t recommend setting it above 120, if it is set too high the thermostat may kick heating coils off so you would go from hot to cold back and forth.
Answered by: Captken
Date published: 2022-04-24

Does the heater pull just enough power to meet the need, or does the next full 40 amps kick in? Example: if it takes 47 amps to run a shower, will the unit only draw 47 amps or pull the full 80 amps as the next tier (breaker) is put into service?

Does the heater pull just enough power to meet the need, or does the next full 40 amps kick in? Example: if it takes 47 amps to run a shower, will the unit only draw 47 amps or pull the full 80 amps as the next tier (breaker) is put into service?
Asked by: Mike
The unit requires 3 - double pole 40 amp breakers. Each breaker will be supplying power to the unit to some degree. The unit does modulate to understand how much power it needs to pull to provide the amount of hot water you are asking from it.
Answered by: Stiebel Eltron Support
Date published: 2022-04-02

What if you need to service the unit? Who can provide customer service and assistance?

What if you need to service the unit? Who can provide customer service and assistance?
Asked by: Anna
Any plumber or any electrican can work on these units. We do suggest calling us first if you are having any issues or questions. Technical Support Department phone number is 1-800-582-8423 Ext 6 Thank you
Answered by: Stiebel Eltron Support
Date published: 2022-03-15

We are trying to decide on sizing, but our house seems to be in between the 24 and 29 models. Does getting a larger size mean you are using more energy? Or does the unit only heat the water that's needed at any given time?

We are trying to decide on sizing, but our house seems to be in between the 24 and 29 models. Does getting a larger size mean you are using more energy? Or does the unit only heat the water that's needed at any given time?
Asked by: Tommy
The units do modulate. Getting a little bigger unit is not a bad thing. Plus, it gives you that extra piece of mind if you need a little more volume of water from time to time.
Answered by: Stiebel Eltron Support
Date published: 2021-12-15

I am thinking of buying this product but want to know if this is enough GPM for my house in San M...

I am thinking of buying this product but want to know if this is enough GPM for my house in San Mateo California. We have 2 full showers, a HE dishwasher, a HE washing machine, kitchen sink and 3 faucets. Typically our water bill is around $30 a month.
Asked by: Lookingforhelp
Yes, this unit would be a good choice for your home. Of course there are limitations on how many fixtures you can run at one time. If you have any questions, please feel free to call our office at 1-800-582-8423 Ext 6. Thank you
Answered by: Stiebel Eltron Support
Date published: 2021-05-28

Does this unit have to be flushed with vinegar or other chemical on a yearly basis like the tankl...

Does this unit have to be flushed with vinegar or other chemical on a yearly basis like the tankless gas water heaters? Is it possible to put a whole-house water filter which would make this flushing unnecessary?
Asked by: iwonder
Yes, if you have mineral in the water, you need to clean it with a descaling agent. Flow-Aide is a great product to use to do this. You can also use a whole house filter (stay away from a salt filter) too.
Answered by: Stiebel Eltron Support
Date published: 2021-05-22

Does this unit work well in heating homes? Or is that too much for this unit?

Does this unit work well in heating homes? Or is that too much for this unit?
Asked by: Johnny
Tempra models typically are used for domestic hot water. You can use them for radiant floor but we would suggest calling our Technical Support Department at 1-800-582-8423 Ext 26 for some advice in sizing a unit for the square footage you have. Thank you.
Answered by: Stiebel Eltron Support
Date published: 2021-04-13
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