---
product_id: 38866492
title: "18kW 240V Tankless Electric Water Heater, Gray"
brand: "rheem"
price: "3508.64 DT"
currency: TND
in_stock: true
category: "Rheem"
url: https://www.desertcart.tn/products/38866492-18kw-240v-tankless-electric-water-heater-gray
store_origin: TN
region: Tunisia
---

# 18kW high power output 4.4 GPM flow rate ±1°F digital thermostat accuracy 18kW 240V Tankless Electric Water Heater, Gray

**Brand:** rheem
**Price:** 3508.64 DT
**Availability:** ✅ In Stock

## Summary

> 🔥 Endless hot water, zero wasted energy — upgrade your flow game!

## Quick Answers

- **What is this?** 18kW 240V Tankless Electric Water Heater, Gray by rheem
- **How much does it cost?** 3508.64 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/38866492-18kw-240v-tankless-electric-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

- • **Compact Space-Saver:** 90% smaller than traditional tanks—fits discreetly under sinks or tight spaces.
- • **Effortless Installation:** Threaded 3/4 inch NPT water connections make setup and replacement a breeze.
- • **Energy-Smart Self-Modulation:** Automatically adjusts power to match your hot water demand, saving up to 50% on energy bills.
- • **Precision Temperature Control:** External LED display with ±1°F accuracy keeps your hot water just right every time.
- • **Durable Copper Heating Elements:** Field-serviceable dual copper immersion elements ensure long-lasting, reliable performance.

## Overview

The Rheem 18kW 240V Tankless Electric Water Heater delivers continuous hot water with a powerful 18kW output and a 4.4 GPM flow rate. Featuring a precise digital thermostat with ±1°F accuracy and advanced self-modulating technology, it optimizes energy use to save up to 50% on heating costs. Its compact, wall-mounted design is 90% smaller than traditional tanks, making it perfect for space-conscious homes. Durable copper heating elements and easy installation with threaded water connections ensure reliable, hassle-free performance.

## Description

This tankless electric water heater is ideal for mid-range whole-home applications. This unit is ideal for single shower applications in the Midwest. The Rheem Performance tankless electric water heaters offer a continuous, endless supply of hot water. A lower kilowatt unit can provide hot water on demand for single or multiple point-of-use applications while a higher kilowatt unit could provide hot water for a whole house depending on the inlet ground water temperature. Tankless electric water heaters save space, save energy, save money, and require no venting. The sleek, compact size, 90 percent smaller than a tank, allows you to save space and place the unit wherever you want, including under a sink. Tankless units only draw energy when hot water is flowing, while traditional tanks are constantly drawing energy to keep the water in the tank at the desired temperature. Rheem's self-modulating technology can save Up to 50 percent on your water heating bill.

## Features

- External digital thermostatic control with LED display (+/1 degree accuracy)
- Most advanced self-modulation, adjust power to meet hot water demand
- Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
- Simple installation – bottom 3/4 inch NPT water connections
- Threaded for easy replacement, simple installation, digital temperature display

## Images

![18kW 240V Tankless Electric Water Heater, Gray - Image 1](https://m.media-amazon.com/images/I/91J18WlAKqL.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.tn/products/38866492-18kw-240v-tankless-electric-water-heater-gray](https://www.desertcart.tn/products/38866492-18kw-240v-tankless-electric-water-heater-gray)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-25*