---
product_id: 92326507
title: "Tankless Water Heater – Tempra 12 Plus – Electric, On Demand Hot Water, Eco, White"
brand: "stiebel eltron"
price: "€ 674.13"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/92326507-tankless-water-heater-tempra-12-plus-electric-on-demand-hot
store_origin: IE
region: Ireland
---

# 12 kW high power output 3 GPM max flow rate Temp range 68°-140°F Tankless Water Heater – Tempra 12 Plus – Electric, On Demand Hot Water, Eco, White

**Brand:** stiebel eltron
**Price:** € 674.13
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Tankless Water Heater – Tempra 12 Plus – Electric, On Demand Hot Water, Eco, White by stiebel eltron
- **How much does it cost?** € 674.13 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/92326507-tankless-water-heater-tempra-12-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

- • **Peace of Mind Warranty:** 7-year leakage and 3-year parts coverage for long-term comfort and trust.
- • **Space-Smart & Energy-Wise:** Sleek wall-mount design saves space and cuts energy bills with auto-modulation tech.
- • **Effortless Digital Control:** LED display with preset memory buttons for personalized, noise-free operation.
- • **Uninterrupted Hot Water Flow:** Patented Advanced Flow Control keeps your shower perfect, no matter the demand.
- • **German Engineering Excellence:** 100+ years of innovation packed into a reliable, eco-friendly powerhouse.

## Overview

The Stiebel Eltron Tempra 12 Plus is a compact, wall-mounted electric tankless water heater delivering up to 12 kW of power and 3 gallons per minute flow. Featuring patented Advanced Flow Control technology, it maintains consistent water temperature between 68° and 140°F, ensuring uninterrupted hot showers. Its energy-efficient auto-modulation system reduces electricity use, while a sleek LED display offers easy, noise-free operation. Backed by a 7-year leakage and 3-year parts warranty, this German-engineered unit is designed for space-saving installation and eco-conscious households seeking reliable, on-demand hot water.

## Description

Get hot water for your entire home with this Stiebel Eltron Tempra 12 Plus Tankless Electric Water Heater. Made in Germany with a 100 years of engineering excellence, this energy-efficient heater delivers up to 34% savings on water heating costs with 99% efficiency. Featuring exclusive German-patented technology that automatically maintains desired temperatures even during high demand. Every family member enjoys the perfect shower without disruption. Self-modulating technology continually adjusts to ensure the minimum electricity is used. The sleek, compact design installs easily and requires no venting. Whether it's morning showers, laundry, or dishes, you'll always have hot water when you need it. Tempra 12 Plus provides hot water at a constant temperature for 1 shower in warm climates and for 1 low flow shower at a cabin or cottage in cold climates. Stiebel Eltron invented tankless electric water heating technology over 100 years ago and remains the industry pioneer with unmatched German engineering excellence.

## 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 12 PLUS – This specific model is 12kW, 240V, requires a min recommended electric service of 100 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 |
|---------------|-------|
| Brand | Stiebel Eltron |
| Product Dimensions | 16.63"W x 14.5"H |
| Special Feature | LED Display |
| Color | White |
| Wattage | 12 KW |
| Voltage | 240 Volts |
| Maximum Flow Rate | 3 Gallons Per Minute |
| Maximum Temperature | 140 Degrees Fahrenheit |
| Heat Output | 12 Kilowatts |
| Efficiency | High |
| Style | Tempra Plus |
| Maximum Operating Pressure | 150 Pound per Square Inch |
| Mounting Type | Wall |
| Is Electric | Yes |
| Manufacturer | Stiebel Eltron |
| Item Depth | 4.625 inches |
| UPC | 040232668586 |
| Manufacture Year | 2023 |
| Global Trade Identification Number | 00040232668586 |
| Part Number | 239219 |
| Item Weight | 13.5 pounds |
| Item model number | 12 Plus |
| Is Discontinued By Manufacturer | No |
| Size | 12 (kW) |
| Installation Method | Wall Mount |
| Item Package Quantity | 1 |
| Number of Handles | 1 |
| Certification | CSA, NSF, UL |
| Special Features | LED Display |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Stiebel Eltron
- **Capacity:** 0.13 Gallons
- **Power Source:** Hard Wiring Required
- **Product Dimensions:** 16.63"W x 14.5"H
- **Special Feature:** LED Display

## Images

![Tankless Water Heater – Tempra 12 Plus – Electric, On Demand Hot Water, Eco, White - Image 1](https://m.media-amazon.com/images/I/51vRJKvmjBL.jpg)
![Tankless Water Heater – Tempra 12 Plus – Electric, On Demand Hot Water, Eco, White - Image 2](https://m.media-amazon.com/images/I/61XuDEkJFLL.jpg)
![Tankless Water Heater – Tempra 12 Plus – Electric, On Demand Hot Water, Eco, White - Image 3](https://m.media-amazon.com/images/I/61OYgIyZ24L.jpg)
![Tankless Water Heater – Tempra 12 Plus – Electric, On Demand Hot Water, Eco, White - Image 4](https://m.media-amazon.com/images/I/51lg9XGuLbL.jpg)
![Tankless Water Heater – Tempra 12 Plus – Electric, On Demand Hot Water, Eco, White - Image 5](https://m.media-amazon.com/images/I/61B41cEcEhL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## 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.

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-01-24*