---
product_id: 328221018
title: "RTEX-24 24kW 240V Electric Tankless Water Heater, Gray"
brand: "rheem"
price: "7600.44 DT"
currency: TND
in_stock: true
category: "Rheem"
url: https://www.desertcart.tn/products/328221018-rtex-24-24kw-240v-electric-tankless-water-heater-gray
store_origin: TN
region: Tunisia
---

# 24kW powerful heating 5.9 GPM flow rate Compact 90% smaller size RTEX-24 24kW 240V Electric Tankless Water Heater, Gray

**Brand:** rheem
**Price:** 7600.44 DT
**Availability:** ✅ In Stock

## Summary

> 🔥 Hot water on demand, savings in hand! 💧

## Quick Answers

- **What is this?** RTEX-24 24kW 240V Electric Tankless Water Heater, Gray by rheem
- **How much does it cost?** 7600.44 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/328221018-rtex-24-24kw-240v-electric-tankless-water-heater-gray)

## Best For

- rheem enthusiasts

## Why This Product

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

## Key Features

- • **Space-Saving Design:** Sleek, wall-mounted unit 90% smaller than traditional tanks fits anywhere
- • **Endless Hot Water Flow:** Delivers consistent 5.9 gallons per minute for whole-home comfort
- • **Maintenance-Free Operation:** No venting required and durable stainless steel build for hassle-free use
- • **Energy Smart Self-Modulation:** Automatically adjusts power usage, saving up to 50% on heating bills
- • **Precision Temperature Control:** Adjustable digital display with ON/OFF dial for perfect hot water every time

## Overview

The Rheem RTEX-24 is a 24kW electric tankless water heater delivering up to 5.9 GPM of continuous hot water. Its compact, wall-mounted design saves space and energy with self-modulating technology that cuts heating costs by up to 50%. Ideal for whole-home use, it features an adjustable digital temperature display and requires no venting, making it a sleek, efficient upgrade for modern living.

## Description

The Professional Classic Tankless Electric RTEX-24 240V is engineered to provide continuous hot water on demand, making it ideal for both single point-of-use and multiple applications, with a remarkable flow rate of 5.9 GPM. Its compact design is up to 93% smaller than traditional electric water heaters, allowing for significant space savings, while its energy-efficient operation eliminates standby heat loss when installed near the point-of-use. See performance guide for average expectations in your region based on ground water temperature and application usage. 3 x 40 AMP Double Pole Breakers Required. 200 AMP Household service recommended. Ensure your home can accomodate the power supply and that enough space is available in your breaker panel for this unit.

## Features

- Get the performance you expect. Choose the right size water heater for your home and verify electrical requirements before installation. When properly sized and professionally installed, Rheem Tankless Electric Water Heaters deliver reliable, on-demand hot water while saving valuable space.
- 24kW model provides up to 5.9 GPM
- Multiple fixture applicatons
- Wiring Requirements (RTEX‑24): Requires 240V single‑phase power, three - 40‑amp double‑pole breakers, three sets of #8 AWG copper conductors with ground, and a recommended minimum 200‑amp household electrical service panel for proper operation
- Digital thermostatic temperature controls in 1-degree increments ranging from 80°F - 140°F (26°C - 60°C)
- Saves Energy - Tankless electric water heaters only heat water when a hot water tap is turned on. By heating water only when needed elimantes energy used to maintain desired water temperature in standard tank water heaters.
- Save Space Without Sacrificing Hot Water - Compact design that frees up valuable floor space, 90% smaller than traditional tank water heaters
- No Venting required to operate, simplifying the installation process compared to a tankless gas water heater
- Warranty: 5-Year Leak, 1-Year Parts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MS9DVEE |
| ASIN  | B01MS9DVEE |
| Best Sellers Rank | #18,533 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #28 in Water Heaters |
| Brand Name | Rheem |
| Capacity | 5.9 gallons |
| Color | Gray |
| Customer Reviews | 4.3 4.3 out of 5 stars (862) |
| Customer reviews | 4.3 4.3 out of 5 stars (862) |
| Date First Available  | 2 March 2017 |
| Efficiency | 99.8% Energy efficient |
| Flow Rate | 5.9 Gallons Per Minute |
| Global Trade Identification Number | 00020352685397 |
| Heat Output | 24 Kilowatts |
| Included Components | Fittings, Aerators |
| Is Discontinued By Manufacturer  | No |
| Is Electric | Yes |
| Item Depth | 3.5 inches |
| Item Dimensions W x H | 44.8W x 46.4H centimeters |
| Item Type Name | Water Heater |
| Item Weight | 17.8 Pounds |
| Item model number  | RTEX-24 |
| Manufacturer | Rheem |
| Manufacturer  | Rheem |
| Manufacturer Part Number | RTEX-24 |
| Material Type | Stainless Steel |
| Maximum Pressure | 150 Pound per Square Inch |
| Maximum Temperature | 140 Degrees Fahrenheit |
| Model Number | RTEX-24 |
| Mount Type | Wall |
| Number of Items | 1 |
| Number of Packs | 1 |
| Power Source | Corded Electric |
| Product Dimensions  | 46.36 x 36.83 x 8.89 cm; 8.07 kg |
| Special Features | LED Display |
| Style Name | Whole Home, 24 kw |
| UPC | 020352685397 |
| Unit Count | 1 Count |
| Voltage | 240 Volts |
| Wattage | 24 KW |

## Product Details

- **Brand:** Rheem
- **Capacity:** 5.9 gallons
- **Power source:** Corded Electric
- **Product dimensions:** 44.8W x 46.4H centimeters
- **Special features:** LED Display

## Images

![RTEX-24 24kW 240V Electric Tankless Water Heater, Gray - Image 1](https://m.media-amazon.com/images/I/A1Xd-sywn+L.jpg)

## Questions & Answers

**Q: Can this directly replace a 40 gal tank heater with a 30A double pole breaker? What are power requrements?**
A: No it can't. RTEX-24 requires 3 sets of wire and ground, and it needs 3x 40amp breaker.  That's a total of 120amps

**Q: Why are 2 answers for the breaker requirements. Is it 3 double 40 or 3 double 60 amp**
A: If the unit draws 40 amp. you need a 2 pole 40 amp breaker 2 #8 wires good for 40 amp and 1 # 10 wire for a bond. Now if the unit draws 60 amps you need 2 # 6's good for 65 amps. A 2 pole 60 amp breaker and 1 # 8 for a bond( ground wire).

**Q: Has anyone had a noticable difference in electric bill?**
A: Yes, reduced electricity by about 20%. But this thing sucks. It has trouble keeping up with water flow and is noisy.  Their support is atrocious. I would not recommend it. Select a different brand.

**Q: Can the unit operate as a rtex-18 if i only hook up 2 of the elements? because i only need the 18 specs as of now but would like the option to upgrade**
A: Actually you can do this but you must be careful on which circuits are connected. Rheem says the elements are activated from right to left as power is required. The right most element connection also provides power to the control so this must always be connected. If the very left element is left disconnected, you will only get 2/3 of the rated power on a 3 element unit.

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**Shop now:** [https://www.desertcart.tn/products/328221018-rtex-24-24kw-240v-electric-tankless-water-heater-gray](https://www.desertcart.tn/products/328221018-rtex-24-24kw-240v-electric-tankless-water-heater-gray)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-10-25*