Search  for anything...

Electric Tankless Water Heater 4.5 kW 110~120V, Point-of-Use, Digital Display, Electric Instant Hot Water Heater with Self-modulating, Overheating Protection for Under Sink, Bar, Hair Salon

  • Based on 46 reviews
Condition: New
Checking for product changes
$89.00 Why this price?
Save $10.00 was $99.00

Buy Now, Pay Later


As low as $14.83 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Sep 21
Order within 7 hours and 49 minutes
Available payment plans shown during checkout

Style: 4.5 kW


Features

  • NOTE: Make sure this water heater is sized for your hot water needs 4.5 kW; 120 V AC, No plugs. Circuit breaker required 1 x bipolar 40 amps; unit dimensions 8.66" x 2.37" x 6.7"; water connection 1/2" NPT.
  • INSTANT & SUFFICIENT HOT WATER: Applied with 4.5 kW heating system, the electric water heater supplies instant, consistent, and endless hot water of 116For higher temp shortly, with no waiting for preheat nor terrible temp up and down, perfect companion for sinks. Time to get rid of those "lukewarm" toys.
  • SMART SELF ADJUSTMENT: The electric water heater adjusts power input based on flow rate and temperature setting in real time. For example, less power will be applied by the system when water flow is reduced, thus you still get the ideal temperature instead of scalding hot water, which means a comfortable experience. An optimal energy efficiency of 98% saves considerable electric charge.
  • CONVENIENT USE: The tankless water heater comes with a digital display and touch control panel so the temperature setting is easy job. Now turn on the tap and let the smart unit do the rest, you neednt go through a hard lesson about temp setting by a mixer tap without any hint.
  • SAFE and DURABLE: Applied with multiple protection devices, every piece goes through strict tests to ensure 100% safety. Inner water and electricity lines are designed to run separately to avoid leakage or harm from scale build-up.
  • POINT of USE: The sleek tankless water heater is as compact as an oatmeal box, making it possible to install it anywhere close to the outlet and avoid energy waste. It can be mounted horizontally, vertically, and obliquely, ideal for kitchens, bars, schools, hospitals, communities, and hair salons.

Brand: Ranein


Product Dimensions: 8.66"W x 6.7"H


Special Feature: Temperature Lock, Lightweight, Pilot Light Button


Color: starry sky gray


Wattage: 4.5 KW


Brand: ‎Ranein


Product Dimensions: ‎8.66"W x 6.7"H


Special Feature: ‎Temperature Lock, Lightweight, Pilot Light Button


Color: ‎starry sky gray


Wattage: ‎4.5 KW


Voltage: ‎120 Volts (AC)


Maximum Temperature: ‎131 Degrees Fahrenheit


Heat Output: ‎4.5 Kilowatts


Efficiency: ‎98%


Style: ‎4.5 kW


Maximum Pressure: ‎87.02 Pound per Square Inch


Mounting Type: ‎Wall


Is Electric: ‎Yes


Manufacturer: ‎Ranein


Item Weight: ‎3.46 pounds


Country of Origin: ‎China


Item model number: ‎RE45K


Special Features: ‎Temperature Lock, Lightweight, Pilot Light Button


Included Components: ‎Parts Kit x1, Water Heater x1, User Manual x1


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: September 11, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Easy set up
Model: RE45K
Clean and brand new
Reviewed in the United States on July 18, 2024 by Marta Bielakowska

  • Returned but looked nice
Model: RE45K
Returned. Couldn’t use it where I wanted it
Reviewed in the United States on June 5, 2024 by Patti Miller

  • Good size
Model: RE45K
Got this for the master bathroom. My husband said it was fairly easy to install under the vanity. It doesn't get as hot as the tank heater, so he may switch them back in the winter. He said it's important to note that this would not have worked in our other bathroom without his redoing all the wiring. The master bedroom and bathroom were later additions to the house, with newer, more modern electrical. ... show more
Reviewed in the United States on August 11, 2024 by PlantLover

  • Poor design and function.
Model: RE45K
Had two with problems with each. When finally installed the temperature is not actually hot. Will still use as it is in my garage and is used to clean my smoker grates and clean paint brushes, neither requiring really hot water.
Reviewed in the United States on August 13, 2024 by Kindle Customer

  • Works great
Model: RE45K
Great little unit. Fit nicely under the sink. Instant hot water. It was just what I wanted. No more wasting 5 minutes of water to get hot water. Good price.
Reviewed in the United States on May 1, 2024 by Pamala harrell

  • Surprisingly powerful
Model: RE45K
I should have paid attention to the 4.5kw aspect of this heater. It really puts out a lot of really hot water. So much so that its too powerful for just one sink. You can adjust the temp but this could clearly run a shower as well as multiple sinks. Easy to install.
Reviewed in the United States on March 3, 2024 by Blake’s mom and dad

  • Partly deceiving
Model: RE45K
I bought this point of use water heater for my laundry sink under the auspices of knowing I was not going to get 115° Hot water so it’s warm water I’m getting I can live with it for my needs No What they don’t tell you Anywhere any advertisement is what the wattage rating breaker needs to be. There’s only one spot under the specifications which The unit require 1. 40 amp breaker. Also, keep in mind you can’t use a standard three prong plug being a 40 amp basically requires hardwiring it to the fuse panel, so you better have some extra wire and a 40 amp breaker As for the temperature of the water here in Central Florida, out of the sink tap I got about 98 to 99 That’s OK for washing your hands, but that’s about the extent of it Unless you like a lukewarm shower I think if you live in a colder Climate, your ground water is going to be colder so therefore your Point of use heater might not be suitable ... show more
Reviewed in the United States on April 13, 2024 by Sheri

  • Tankless water heater
Model: RE45K
Hot hot hot
Reviewed in the United States on May 2, 2024 by Kaitlyn Vees

Can't find a product?

Find it on Amazon first, then paste the link below.