---
product_id: 666840827
title: "Mini Tankless Water Heater Electric 110V ~ 120V for Sink, ThermoMate 4.5kW 37.5A at 120V Small Point of Use Water Heater CSA Approved, Must HardWird Requiring 10AWG Wire"
brand: "thermomate"
price: "$349.21"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/666840827-mini-tankless-water-heater-electric-110v-120v-for-sink-thermomate
store_origin: US
region: United States of America
---

# 4.5kW power for instant heat Compact 10.95"x7.4"x2.52" fits tight spaces Hardwired 120V with 10AWG wire for safety Mini Tankless Water Heater Electric 110V ~ 120V for Sink, ThermoMate 4.5kW 37.5A at 120V Small Point of Use Water Heater CSA Approved, Must HardWird Requiring 10AWG Wire

**Brand:** thermomate
**Price:** $349.21
**Availability:** ✅ In Stock

## Summary

> 🔥 Compact Powerhouse: Hot Water, No Wait, No Space Wasted!

## Quick Answers

- **What is this?** Mini Tankless Water Heater Electric 110V ~ 120V for Sink, ThermoMate 4.5kW 37.5A at 120V Small Point of Use Water Heater CSA Approved, Must HardWird Requiring 10AWG Wire by thermomate
- **How much does it cost?** $349.21 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/666840827-mini-tankless-water-heater-electric-110v-120v-for-sink-thermomate)

## Best For

- thermomate enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Durable cast aluminum heating element and SUS 304 stainless steel water tube minimize scale and corrosion for long-term reliability.
- • **Space-Savvy Design:** Sleek, compact footprint fits discreetly under sinks or in tight spots—perfect for modern minimalist spaces.
- • **Instant Hot Water On Demand:** Say goodbye to cold waits with 4.5kW rapid heating power delivering up to 0.85 GPM at 115°F.
- • **Precision Temperature Control:** Digital touch panel lets you fine-tune water temperature in 1° increments for personalized comfort.
- • **Certified Safety & Easy Installation:** CSA approved with leak-proof chamber, pre-wired pigtail, and mounting kit—professional-grade quality you can trust.

## Overview

The ThermoMate Mini Tankless Water Heater is a 4.5kW, 120V hardwired unit designed for single-faucet point-of-use applications. Its compact size (10.95" x 7.4" x 2.52") fits tight spaces like under sinks, while its cast aluminum heating element and stainless steel water tube ensure durability and reduced mineral buildup. With a digital touch control panel offering precise temperature adjustments and CSA certification for safety, it delivers up to 0.85 gallons per minute of near-instant hot water, making it an efficient and reliable upgrade for modern homes and businesses.

## Description

Full description not available

## Features

- On Demand Heating - 4.5kw tiny compact water heater provides on demand hot water for Single faucet, 115°F 0.66GPM
- Specifications - 4.5kW 120V ONLY Hardwired using 10AWG above wire size, requiring 40A Double Pole Circuit Breaker, and 1/2"NPT water connections
- Long-lasting Quality - Cast aluminum heating element separated from water line, significantly reducing scale, corrosion and mineral buildup. SUS 304 stainless steel water tube
- Sleek Compact Size - 10.95" x 7.4" x 2.52", Small water heater fit in tight places within your home or business, like under cabinets and sinks
- Touch control panel and digital temperature display allowing adjustment in 1° increment. IP25 waterproof, Standard 1/2"NPT pipe fitting, pre-wired pigtail for easy installation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | thermomate |
| Product Dimensions | 7.4"W x 10.95"H |
| Special Feature | 120V Hardwired, CSA Certified, Leak proof heating chamber |
| Color | White |
| Wattage | 4500 watts |
| Voltage | 120 Volts |
| Maximum Flow Rate | 0.85 Gallons Per Minute |
| Maximum Temperature | 125 Degrees Fahrenheit |
| Efficiency | 99.8% efficient |
| Style | 4.5kW |
| Mounting Type | Wall |
| Is Electric | Yes |
| Manufacturer | thermomate |
| UPC | 850066581049 |
| Item Weight | 5.72 pounds |
| Item model number | ET045 |
| Item Package Quantity | 1 |
| Special Features | 120V Hardwired, CSA Certified, Leak proof heating chamber |
| Included Components | mounting kit, water heater |
| Batteries Required? | No |

## Product Details

- **Brand:** thermomate
- **Product Dimensions:** 7.4"W x 10.95"H
- **Special Feature:** 120V Hardwired, CSA Certified, Leak proof heating chamber
- **Color:** White
- **Wattage:** 4500 watts

## Images

![Mini Tankless Water Heater Electric 110V ~ 120V for Sink, ThermoMate 4.5kW 37.5A at 120V Small Point of Use Water Heater CSA Approved, Must HardWird Requiring 10AWG Wire - Image 1](https://m.media-amazon.com/images/I/51PavrAhs4L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Little Water Heater
*by D***3 on September 7, 2025*

This heater was easy to install, works as expected. Provides instant hot water. For my needs it was well worth the money.

### ⭐⭐⭐⭐⭐ Satisfied customer!
*by J***N on September 13, 2025*

It’s only been running for less than a week so that part I am not able to address. It is performing very well. Very easy to install.

### ⭐⭐⭐⭐⭐ So easy to install, a cavewoman DID do it
*by D***R on December 7, 2024*

I am in a house I just recently bought. The gas company is super unfriendly, their "inspector," is not a nice person and after clearing the house with the gas on a few months ago now says all the gas lines must be replaced? They're not even old. So, yeah, bye bullying GAS Company! I yanked out the gas stove and put it on Craigslist the next day, lovely electric cooktop now installed. We have options, today. Anyway, I researched and researched, and found this portable electric HWH that consumes low amps and is 110v! I have to admit, the box arrived and I was intimidated. I got online and started looking for "all the stuff," I'd need to install it, lines, fittings, even tools. Imagine my delight when I discovered I needed nothing other than what was already there in the house and some teflon tape I already had. Even installing the pressure relief valve (they provided it, thanks so much) was a breeze. Start to stop, it was making water hot less than 30 minutes after I opened the box. I'm using this right now in a shower. I have to spray, suds, rinse, but it SO beats ice cold showers. My plan will be to use this unit eventually in my outdoor bathhouse, but today, it's saving my life by providing me with a hot shower. So, so happy I bought this.Update 5/12/2025 - Still working great, used it this morning!

## Frequently Bought Together

- Tankless Water Heater Electric for Sink Faucet, ThermoMate 4500W 110~120V Small Point of Use Instant Hot Water Heater CSA Approved with Temperature Display, Self-modulating, 0.85GPM at 35°F Rise
- HYDRO MASTER Tankless Water Heater Service Valve Kit with Pressure Relief Valve 3/4-Inch IPS Isolator Clean Brass

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-22*