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Stiebel Eltron

Model Tempra 20

Internet #203210871

Tempra 20 Self-Modulating 19.2 kW 2.91 GPM Electric Tankless Water Heater

$599.00 /each
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.

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Product Overview

Powerful output, compact design, remarkable energy-saving features: Our whole house electric tankless water heaters are made to perform to the highest standards in terms of comfort and reliability. Intelligent self-modulating technology continually ensures the least amount of energy is used to heat the water. The Tempra 20 provides hot water at a constant temperature for 1-2 bathrooms in warm climates, or 1 bathroom in cool climates. See sizing guide to determine which model is best for you (guide assumes 2 GPM or less per shower-head). 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 the performance and reliability of our products. Call Stiebel Eltron at 800-582-8423 if you have high flow showers or any sizing questions.

  • Warranty: 7 years against leakage and 3 years parts (see warranty manual for details)
  • 99% efficient- saves 15-20% (up to 30%) on electric bills compared to an electric tank-type water heater
  • Endless hot water
  • Thermostatic control range from 86-140°F
  • Self-modulating control saves energy by adjusting electrical usage based on demand
  • Saves space - no venting required
  • Requires 240 or 208-Volt
  • Recommended minimum of 150 total amp service, with 2 separate, dedicated 40 Amp circuits
  • Professional installation recommended
  • Tempra tankless electric water heaters are exempt from seismic code
  • See warranty for complete details of the 3-year residential and commercial warranty against defects in workmanship and materials under normal use
  • Stiebel Tempra Sizing Guide:

    Stiebel Tempra Sizing Guide

  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Customer Reviews

Rated 4.2 out of 5 by 10 reviewers.
Rated 5.0 out of 5.0 by Why do they make the large tanks when they have these? We bought our 3 bdrm, 2 bathroom condo about 6 months ago with a very small kitchen with little cabinet space. i don't understand why more people don't have these! We never run out of hot water or have an issue with having enough. April 19, 2016
Rated 3.0 out of 5.0 by Plan, Review, Ask ? about Products The product was easy to install and provided some satisfaction but, I really thought it would serve my needs and it didn't and I was surprised. However, I believe if a tech would contact the purchaser prior to shipment from where it is stored to discuss the item and what the purpose of use is and the location it will be much better to find out if another item with better qualities is best or if one with less qualities and cost would be satisfactory and serve the consumer best. January 16, 2015
Rated 5.0 out of 5.0 by Great Purchase Had this replace my previous tankless electric hot water heater, it is working like a champ. It takes a plumer an electrician to install it but luckily I knew a guy that does both. But even then the installation is very easy. The unit works well the water flow is affected a little but in my condo the water pressure is not that great. December 23, 2014
Rated 5.0 out of 5.0 by Replaced tank type water heater Compact, designed in stages to match power demands to water flow rate. Simple, clean design. September 16, 2014
Rated 2.0 out of 5.0 by Good for small water consumption, not a whole house heater I purchased Tempra20 a couple of years ago and I have had a problem figure it out how to adjust the water flow to a comfortable level. During the summer hot days there not much of the problem since the water temperature difference is not great, during the winter cold days and nights the unit is definitelly not a whole house unit. The water connection is 3/4" and when you open the bathroom faucet the unit is struggling to deliver hot water. I reduced the water temp to 44 deg.C and turned the outlet valve down until the blinking light stopped to blink. The water coming out of the faucet was so low that is less than a gallon per minute. This is not a whole house unit, it is good maybe for a kitchen sink, but not for a bathroom. Advantage is a small wall mounted unit, saves a lot of space, but performance not as advertised. December 31, 2012
Rated 4.0 out of 5.0 by Compact, heats water quickly I did the installation myself with average skill & tools. The required heavy gauge wires are expensive, so add that in to your total cost. Also, check to see how many (1-3) SEPARATE electrical circuits are required for the chosen heater. This one heats water quickly; the shower is 10ft away and it takes about 10 seconds for the hot water to start flowing. Have not tried multiple hot water devices (shower, dishwasher) at the same time. January 10, 2013
Rated 5.0 out of 5.0 by Hard to believe I was cramped for space in my utility/laundry room. I removed my old gas hot water tank that was 15 years old and due for replacement. I had explored my options. Home Depot. com always had the answer and many choices. Easy install with the proper pex, and electrical tools (knowledge in these fields is a MUST). The Origin, Made in Germany says it all. They have been making energy saving products for nearly 90 years. Great Product!!!! March 20, 2012
Rated 5.0 out of 5.0 by Easy to install Started it up today. Very easy to install. The plumbing connections were easy. An electrician did the required upgrades for the power (from the lesser requirements for the tank heater we had). Easy to use and set. April 18, 2012
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