---
product_id: 374562760
title: "Tankless Water Heater – Tempra 20 Plus – Electric, On Demand Hot Water, Eco, White"
brand: "stiebel eltron"
price: "$2610.65"
currency: USD
in_stock: true
reviews_count: 5
category: "Stiebel Eltron"
url: https://www.desertcart.us/products/374562760-tankless-water-heater-tempra-20-plus-electric-on-demand-hot
store_origin: US
region: United States of America
---

# 19.2 kW powerful heating 3.79 L/min continuous flow Energy savings monitor Tankless Water Heater – Tempra 20 Plus – Electric, On Demand Hot Water, Eco, White

**Brand:** stiebel eltron
**Price:** $2610.65
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your home comfort with endless hot water on demand!

## Quick Answers

- **What is this?** Tankless Water Heater – Tempra 20 Plus – Electric, On Demand Hot Water, Eco, White by stiebel eltron
- **How much does it cost?** $2610.65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/374562760-tankless-water-heater-tempra-20-plus-electric-on-demand-hot)

## Best For

- stiebel eltron enthusiasts

## Why This Product

- Trusted stiebel eltron brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Durability:** Backed by 7-year leakage and 3-year parts warranties for peace of mind.
- • **Space-Smart & Sleek:** Compact wall-mounted design fits perfectly in modern homes without venting hassles.
- • **Eco-Friendly Efficiency:** Uses 15-20% less energy than traditional tanks, cutting your utility bills and carbon footprint.
- • **Intuitive Digital Control:** LED display with preset temps and memory buttons for effortless, noise-free operation.
- • **Uninterrupted Hot Showers:** Advanced Flow Control tech keeps water temp steady, no more cold surprises.

## Overview

The Stiebel Eltron Tempra 20 Plus is a high-efficiency, electric tankless water heater delivering 19.2 kW of power and a continuous flow rate of 3.79 liters per minute. Featuring patented Advanced Flow Control technology, it maintains consistent water temperature by adjusting flow to meet demand, ensuring uninterrupted hot showers. Its compact, vent-free design saves space and energy, reducing consumption by up to 20% compared to traditional tank heaters. Equipped with a digital LED display and preset memory functions, it offers quiet, user-friendly operation. Certified for safety and durability, it includes a 7-year leakage and 3-year parts warranty, making it a reliable, eco-conscious choice for modern homes.

## Description

"The Stiebel Eltron Tempra 20 Plus Tankless Water Heater features exclusive Advanced Flow Control German patented technology invented by Stiebel Eltron to automatically maintain water temperature for constant comfort. It’ll reduce flow slightly if hot water demand exceeds capacity to ensure that hot showers will never be interrupted. Tempra 20 Plus will typically use 15-20% less energy compared to conventional electric tank water heaters. Although, it’s possible to save significantly more energy depending on personal home usage habits. The difference is that conventional tank water heaters continually store hot water, and as a result, lose 15%-20% of the total energy consumed to the environment around them. This is called standby heat loss. Tank water heaters that use gas or oil are even less efficient, because they also lose heat through their vents to the outdoors. Our tankless water heaters do not need venting, and will not store hot water, waiting for you to use it. They operate on-demand to provide continuous and endless hot water when you need it, and not waste energy when you don’t. CERTIFICATIONS INCLUDE - ANSI/UL Std. 499, CSA Std. C22.2 No. 88, ISO 9001, WQA tested & certified against NSF/ANSI 372 for lead free compliance. TECHNICAL SPECIFICATIONS – Single Phase 50/60 Hz; Voltage: 240 V/208 V; Wattage: 24 KW/18 KW; Min. recommended household electric service 125 A; Amperage draw: 2 x 50 A 2 x 44 A; Number and min. recommended size of circuit breakers: 2 x 50 A (DP); Number of runs and min. recommended wire size (copper): 2 x 6/2 AWG; Max. temperature rises: 92 F/82 F at 1.50 GPM, 73 F/54 F at 2.25 GPM, 54 F/41 F at 3.00 GPM, 37 F/ 27 F at 4.50 GPM, Min. water flow to activate unit: 0.50 GPM/1.9l/min; Weight: 16.1 lb / 7.3 kg; Nominal water volume: 0.26 gal/1l; Max. inlet water temperature: 131 F/55 C; Working pressure: 150 PSI/10 BAR; Tested to pressure: 300 PSI / 20 BAR; Water connections: 3/4"" NPT."

Review: Efficient and Reliable Hot Water Solution
Review: The Mercedes of tankless water heaters

## Features

- CONTINUOUS FLOW – Advanced Flow Control patented technology invented by Stiebel Eltron, automatically maintains water temperature for constant comfort. It’ll reduce flow slightly if hot water demand exceeds capacity. Hot showers will never be interrupted again
- SPACE & ENERGY SAVER – Its small, sleek white design saves space yet still provides endless hot water for your whole house, and no venting is required. Eco friendly unit saves energy with auto-modulation and the ability to electronically control water flow. Savings monitor even shows how much you save on energy costs
- EASY OPERATION – Electronic switch activates the hot water heater and it’s noise free while in use. Has a digital temperature display and preset temperature and memory buttons, while the interior solid copper heating system does all the power work
- TEMPRA 20 PLUS – This specific model is 19.2kW, 240V, requires a min recommended electric service of 125 A, and offers an output water temperature of 68° to 140°F. Check our guides below to compare features of our various Trend and Plus models, each available in different kW levels
- WARRANTIES INCLUDED – Stiebel Eltron’s top-rated electric tankless water heaters perform with the highest standards for comfort and reliability. Our 7-Year Leakage and 3-Year Parts Warranties are included with purchase

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GYYXXF8 |
| Brand | Stiebel Eltron |
| Brand Name | Stiebel Eltron |
| Color | White |
| Colour | White |
| Customer Reviews | 4.4 out of 5 stars 308 Reviews |
| Efficiency | High |
| Flow Rate | 3.79 Liters Per Minute |
| Heat Output | 19.2 Kilowatts |
| Is Electric | Yes |
| Item Dimensions W x H | 42.2W x 36.8H centimeters |
| Item Type Name | Water Heater |
| Item Weight | 16.1 Pounds |
| Item height | 14.5 inches |
| Manufacture Year | 1930 |
| Manufacturer | Stiebel Eltron |
| Material Type | Copper |
| Maximum Pressure | 150 Pound per Square Inch |
| Maximum Temperature | 140 Degrees Fahrenheit |
| Model Number | 20 Plus |
| Mount Type | Wall |
| Power Source | Corded Electric |
| Power source | Corded Electric |
| Product dimensions | 42.2W x 36.8H centimeters |
| Special Features | LED Display |
| Special features | LED Display |
| Style Name | Tempra Plus |
| UPC | 040232668609 |
| Unit Count | 1 Count |
| Voltage | 240 Volts |
| Wattage | 19.2 KW |

## Product Details

- **Brand:** Stiebel Eltron
- **Color:** White
- **Power Source:** Hard Wiring Required
- **Product Dimensions:** 16.63"W x 14.5"H
- **Special Feature:** LED Display

## Images

![Tankless Water Heater – Tempra 20 Plus – Electric, On Demand Hot Water, Eco, White - Image 1](https://m.media-amazon.com/images/I/51vRJKvmjBL.jpg)

## Questions & Answers

**Q: Electric panel is ~50 feet from where i want to install the tempra 29 trend. is this distance ok for #8 thhn wire?**
A: The recommended wire is 8/2 and there is not a limit to distance written in the install directions.
You need to check with your electrician. Make sure he is state license and insured. 
We have installed a Tempra 29 and our electrician ran three 8/2's approx. 30' with no question. But check with your electrician and local codes. God bless you and happy New Year.

**Q: Where is it made?**
A: The Tempra 29 is made in Holzminden, Germany, as of 8/16/2022.

**Q: How can i make tempra trend 24 work with my bosch shx33a05uc/22 dishwasher? the dishwasher will not advance to next cycle. water is not hot enough.**
A: This water heater activates at 0.5 GPM and will heat to your set temperature at the correct flow rate for that set temperature.  Please call our Technical Department at 1-800-582-8423  Ext 6 with more details so we can help you better.  (for example, does the dishwasher have its own heating element, distance between the 2 units, etc...)  Thank you.

**Q: Is there an installation kit available for this? i am installing in a remote location & plumbing parts are not available? water lines are pvc.**
A: There is no specific installation kit.   However, we suggest using flexible braided hose  connections that screw onto  the hot and cold water for the first 18" or so.  These connections are easy to remove to check a filter screen or if needed to work on the unit in general.  The connections are 3/4" NPT.  Please feel free to call our Technical Support Department at 1-800-582-8423  ext 6 with any questions.  Thank You.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Efficient and Reliable Hot Water Solution
*by J***O on 27 September 2023*



### ⭐⭐⭐⭐⭐ The Mercedes of tankless water heaters
*by N***H on 25 July 2023*



### ⭐⭐⭐⭐⭐ Replaced old Bosch with new Steibel
*by A***R on 29 November 2025*



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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-20*