• Mobile Menu
    Maintaining clean, safe stores is one of our top priorities.Learn More

    Stiebel Eltron Tempra 12 Plus Advanced Flow Control and Self-Modulating 12 kW 2.34 GPM Electric Tankless Water Heater

    Model # 239219|Store SKU # 1001241399

    Overview

    Model # 239219 Store SKU # 1001241399

    Powerful output, compact design, and remarkable energy-savings. Tempra Plus models feature Advanced Flow Control, patented in Germany and exclusive to Stiebel Eltron tankless heaters, that automatically maintains desired hot water temperature by slightly reducing flow when necessary. Self-modulating technology ensures the least amount of energy is used to heat the water. A Tempra 12 Plus provides hot water at a constant temperature for 1 bathroom in warm climates and for 1 bathroom at a cabin or cottage in cold climates. See sizing guide to determine the best model for you. Stiebel Eltron invented tankless electric water heating technology more than 90 years ago, and is still the industry pioneer and world leader. Our engineering and manufacturing tradition of excellence means you can depend on our products to perform at the highest standards of comfort and reliability. Call Stiebel Eltron at 800-582-8423 if you have high flow showers or any sizing questions.

    1. Tempra tankless electric water heaters must be correctly sized and you should consult the sizing guide to determine the correct model for y
    1. This Tempra Plus model has Advanced Flow Control that automatically reduces output flow to maintain temperature if demand temporarily exceeds capacity
    1. Requires 1 separate dedicated 50 amp DP breaker and 8 gauge copper wiring for the Tempra 12 Plus itself
    1. Tempra 12 Plus requires 240 or 208 volt electric service, and has a maximum output of 12,000 watts at 240 volts or 9,000 watts at 208 volts
    1. Tempra tankless water heaters supply endless hot water at a constant and steady temperature from 86 to 140 F (30-60 C) that can be set on the front panel digital display
    1. The flow rate you achieve from this or any tankless water heater depends on how powerful the unit is and the temperature difference between the incoming cold water and the hot water being delivered

    Specifications

    Dimensions

    Assembled Depth (in inches)
    4.625
    Assembled Height (in inches)
    14.5
    Assembled Weight (in lbs)
    17
    Assembled Width (in inches)
    16.625
    Packaged Depth (in inches)
    4.625
    Packaged Height (in inches)
    14.5
    Packaged Weight (In lbs)
    13.5
    Packaged Width (in inches)
    16.625

    Details

    Commercial/Residential
    Residential
    Country of Origin
    DE-Germany
    Flow Rate (L/min)
    2.34
    Indoor/Outdoor
    Indoor
    Parts Warranty (Years)
    3
    Wattage
    12000

    Warranty / Certifications

    7-year leakage, 3-year parts
    Tempra 12 Plus Advanced Flow Control and Self-Modulating 12 kW 2.34 GPM Electric Tankless Water HeaterStiebel Eltron Tempra 12 Plus Advanced Flow Control and Self-Modulating 12 kW 2.34 GPM Electric Tankless Water HeaterPowerful output, compact design, and remarkable energy-savings. Tempra Plus models feature Advanced Flow Control, patented in Germany and exclusive to Stiebel Eltron tankless heaters, that automatically maintains desired hot water temperature by slightly reducing flow when necessary. Self-modulating technology ensures the least amount of energy is used to heat the water. A Tempra 12 Plus provides hot water at a constant temperature for 1 bathroom in warm climates and for 1 bathroom at a cabin or cottage in cold climates. See sizing guide to determine the best model for you. Stiebel Eltron invented tankless electric water heating technology more than 90 years ago, and is still the industry pioneer and world leader. Our engineering and manufacturing tradition of excellence means you can depend on our products to perform at the highest standards of comfort and reliability. Call Stiebel Eltron at 800-582-8423 if you have high flow showers or any sizing questions.
    Stiebel Eltron
    1001241399
    CAD679
    The Home Depot Canada
    Tempra 12 Plus Advanced Flow Control and Self-Modulating 12 kW 2.34 GPM Electric Tankless Water Heater is rated 4.8 out of 5 by 6.
    • y_2020, m_10, d_25, h_16
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.12
    • cp_1, bvpage1
    • co_hasreviews, tv_2, tr_4
    • loc_en_CA, sid_1001241399, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_homedepot-canada
    • bvseo_sdk, java_sdk, bvseo-4.0.0
    • CLOUD, getAggregateRating, 60ms
    • REVIEWS, PRODUCT
    Rated 5 out of 5 by from Very good heating unit for 100A service This replaced an older Bosch 9kw unit. Direct replacement, more efficient and used the same wiring and breaker size. Much better at low flow heat. Supplies all the hot water at the cabin, including shower.
    Date published: 2020-10-12
    Rated 5 out of 5 by from Smart choice in the right application (Tempra Plus 15) I installed this unit in August of 2019 (one year ago) and it is one of the best investments I've made since purchasing my condo. This unit replaced a 30 gallon electric tank water heater from the early 1990's which was not providing enough hot water for a bath or for two people to take showers. The tank had not been maintained so there was significant sediment which degraded the performance. The tank was installed in a cabinet near the breaker panel. The tank was a very tight fit--it's doubtful the anode was ever replaced as there was no headspace. After researching tankless units and consulting an electrician this model was the one recommended and for my application is the best solution. Our winter water temperature is 42 degrees F (southern Minnesota) and I had a limit to the electrical load so this unit is the largest I could install with those restrictions. From the photo you can see I am also limited to a small cabinet that used to hold the 30 gallon tank heater. This installation is in a condo with four fixtures that use hot water: a kitchen sink, lavatory sink, dishwasher, and shower/tub. This application has very short pipe runs--there is no recirculation pump for hot water or pipes inside exterior walls. The most difficult task was finding a plumber to install it--I called four reputable local ones and while their websites sold tankless units, the plumbers dispatched to estimate the job were all more keen to install a tank. I had to do a lot of research and speak with my local inspector to confirm that this could be installed; I found those with experience with tankless units (the inspector, electrician, and one plumber) knew a lot more about installation than those that just stuck to tank-type installations (the rest of the plumbers). Specific to the Stiebel Eltron Tempra 15 Plus--the "Plus" is necessary as it has a valve to regulate flow to maintain temperature and is unique to this brand. The installation and instruction booklet were well written, the unit has a clean appearance, and controls are simple to use. I do wish this had a remote display as it would be helpful to see the flow statistics from a better angle but I am limited to seeing the display where the unit is installed (inside a high cabinet). The interior construction is solid (a lot of copper) and straightforward--my electrician had no problem connecting it and it powered up right away. As for use, the water in a nearby faucet takes about 30-45 seconds to flow at the setpoint of 116F which is similar to what the tank unit performed at. Because the unit is tankless, there is no limit to the quantity of heated water. The unit is silent but in the winter if I'm filling the bathtub I can faintly hear the valve regulate the flow to maintain the outlet temperature of 116F I have the unit set to. The cabinet where the unit is installed has plenty of room to leave a flush kit in it and already had a drain (PVC pipe to vertical stack) from the former heater's TPR valve which the drain pan was plumbed onto. A big word of caution is that proper sizing a tankless unit is critical to your application and lifestyle--this unit is ideal for my application but in a house with several lavatories or a clothes washer it would be underpowered. I provided the electrician I hired with the spec sheet for this unit and he confirmed it would serve my needs--the vendor can also offer help in selecting the right unit. Tank-type units are more common in the U.S., often a little cheaper, and are simpler devices--since most homes come with one installed it's an easy choice to swap out one item that worked with a similar one--but in some applications a tankless unit is a smarter replacement. I don't have the measuring equipment in my home to see if this unit is saving me electricity over the 30-gallon tank unit--I haven't seen my electric bill go down significantly--this could be my usage habits as I no longer need to be concerned about running out of hot water.
    Date published: 2020-09-23
    Rated 4 out of 5 by from We did not install the unit for reasons of power... We did not install the unit for reasons of power demand on our current electrical system. So are not able to determine it's function. I have given the unit a "good" rating based on quality build and also that we bought a space heater of the same brand.
    Date published: 2020-07-15
    Rated 5 out of 5 by from We have had this installed for over a year now to provide hot water to one shower and two sinks (... We have had this installed for over a year now to provide hot water to one shower and two sinks (bathroom and kitchen). Great space saver compared to a lowboy 30gal hot water heater. It has worked flawlessly and the heat adjustment knob is awesome. Doesn’t take long to start having hot water. You do need a 50amp breaker with this unit in your panel. Thinking about replacing our 50gal tank with another one of these.
    Date published: 2019-11-21
    • y_2020, m_10, d_25, h_16
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.12
    • cp_1, bvpage1
    • co_hasreviews, tv_2, tr_4
    • loc_en_CA, sid_1001241399, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_homedepot-canada
    • bvseo_sdk, java_sdk, bvseo-4.0.0
    • CLOUD, getReviews, 27ms
    • REVIEWS, PRODUCT

    Will this be sufficient for a 1 bath condo unit in Canada?

    Asked by: Layla
    The Tempra 12 Plus is designed to provide about 1.5 GPM with a 55 degree F rise in temperature over incoming water temperature. The Plus feature may kick in during the winter months since the incoming water will be very cold. You can only run 1 application at a time too. If you have any further questions, please feel free to call us at 1-800-582-8423 ext 6 with any further questions. Thank You.
    Answered by: Stiebel Eltron Support
    Date published: 2020-06-17
    • y_2020, m_10, d_25, h_16CST
    • bvseo_bulk, prod_bvqa, vn_bulk_3.0.12
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_1
    • loc_en_CA, sid_1001241399, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_homedepot-canada
    • bvseo_sdk, java_sdk, bvseo-4.0.0
    • CLOUD, getContent, 81ms
    • QUESTIONS, PRODUCT