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Stiebel Eltron Tempra 15 14.4 kW Whole Home Tankless Electric Water Heater

Model # Tempra 15|Store SKU # 1000781998

Overview

Model # Tempra 15 Store SKU # 1000781998

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. Tempra 15 models require 208 or 240 volt electric service, with a maximum draw of 10,800 watts at 208 volts or 14,400 watts at 240 volts
  1. Professional installation recommended
  1. A minimum of 125 amp total service to the residence is necessary, with 2 separate 40 amp breakers and 8 gauge copper wiring for the Tempra 15
  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 tankless electric water heaters are 99% efficient and typically result in savings of 15-20% in comparison with electric tank water heaters
  1. Tempra 15 models provide hot water for cabins and cottages

Specifications

Dimensions

Assembled Depth (in inches)
4.6
Assembled Height (in inches)
14.5
Assembled Weight (in lbs)
15.4
Assembled Width (in inches)
16.5
Packaged Depth (in inches)
21
Packaged Height (in inches)
8.5
Packaged Weight (In lbs)
17
Packaged Width (in inches)
19.5

Details

Certified
Commercial/Residential
Residential
Country of Origin
US-United States
Fuel Type
Electric
Indoor/Outdoor
Indoor
Max GPM
0-5
Wattage
14400
WH Connection Location
Bottom
WH Profile Type
Compact

Warranty / Certifications

For warranty information on this product, please call our Internet Customer Service Center at 1-800-435-4654.
Tempra 15 14.4 kW Whole Home Tankless Electric Water HeaterStiebel Eltron Tempra 15 14.4 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
1000781998
CAD10492022-05-29
The Home Depot Canada
Tempra 15 14.4 kW Whole Home Tankless Electric Water Heater is rated 3.0 out of 5 by 3.
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Rated 3 out of 5 by from I used the area maps and usage diagrams to figure out which heater to purchase. Knowing I had 10... I used the area maps and usage diagrams to figure out which heater to purchase. Knowing I had 100 amp service this was the largest unit I could install in a seasonal house with one set of kitchen faucets, bathroom faucets, and one shower/tub. Installation was quite straight forward and went well.Usually one set of faucets would be used at a time, so I expected the unit to perform well. However, it didn't work very well with any one source of water usage turned fully on. Apparently the water flow was too much for the heater to keep up with. I closed the valve partially on the incoming water to reduce the flow to see if I got better results. It helped a tiny bit. Next by reducing the outflow when trying each different faucet system I was able to get a steady red light and constant 120 degree hot water from the heater. I think the problem is my water coming from my well is colder than the 42 degrees shown the map covering the state of Maine and the flow rate is too strong. In hindsight, If I could have afforded it, perhaps the Tempra 15 Plus might have worked better.
Date published: 2017-06-28
Rated 1 out of 5 by from Be extremely careful before buying. This device will not provide hot water for a tub in Canada or north of the Mason-Dixon Line. The sizing guide did not indicate anything about a tub (high flow device) not getting hot water. I put this in a cottage and the tub will not get anything but tepid water.
Date published: 2016-05-17
Rated 5 out of 5 by from Very Good Product Adjustable Temp. on front easy to use. I love It, Saves on my electric bill. Plenty Hot. I had a power star that was all that was available 5years + ago never did work right. I did my research this time and found this. It is what I should have had from the start. Fantastic Product. These do take a plumber and electrition to hook up. My house was built with hookups and special electrical in mind running these units is 220 with Two 40 amp connections. Farther North you will need the more amp units. But these are well worth the investment and they take up very little space. Hook up took about an hour, electrition plumber highly recommended.
Date published: 2014-02-15
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What is the average monthly cost to run this device.

What is the average monthly cost to run this device.
Asked by: pizzaman78
It is very difficult to answer the question in that kilowatt prices vary, amount of usage vary, time usage varies and so on. If you are replacing a standard electric tank to a tankless unit, you can expect a 25 - 30% savings.
Answered by: Stiebel Eltron Support
Date published: 2018-10-18

Hello, What size wire / how many conductors and Amperage Circuit Breaker is required for this i...

Hello, What size wire / how many conductors and Amperage Circuit Breaker is required for this item? Thank you for your help.
Asked by: David
Unit requires a minimum of 30 amp breakers on 10/2 awg copper wire. You will need 2 separate circuits. Voltage drop must be less than 3%.
Answered by: Plumberguy17
Date published: 2018-03-01

Will this unit replace my existing electric water heater?

My house is wired for a 220v water heater, with one circuit, the Stieble shows that two circuits are needed with two double pole breakers-. How can it be wired in safely
Asked by: Bubba
The manual says two 40 Amp breakers and #8 wire.
Answered by: gwbarr
Date published: 2018-04-26

get the right temp

what temp should the incoming water be to get to 107 degrees for showering
Asked by: nardi
The answer depends on the flow rate. If you are supplying only a single shower with a 2 GPM showerhead, then a Tempra 15 will need 57 degree incoming water to supply 107 degree hot water. If your showerhead is 2.5 GPM, then your incoming water temperature needs to be 67 degrees. Make sure you calculate with your Winter ground water temperature rather than your Summer temperature. Last thing you want to do is take a cold shower in the Winter!
Answered by: Plumberguy17
Date published: 2018-03-01

what are the electrical panel requirements for this unit? how much would it cost to have it installed?

Asked by: Nadene17
You must have a 125AMP servi e coming into your home. If you have that an electrician can intal the two 40amp breaks. 
Answered by: HandyMoM_DIY
Date published: 2016-05-17
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