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  3. RANEIN RE45K-U

RANEIN RE45K-U Electric Tankless Water Heater Ultra Demand Sink 4.5 110V

Re45k-u Ranein 4.5 Kw 110v Electric Tankless Water Heater Ultra - Instant On-demand Under-sink

( Brand: Ranein ), ( Manufacturer Part Number: RE45K-U ), ( Type: Tankless Water Heater/boiler ), ( Color: Gray ), ( Item Height: 6.7 In ), ( Voltage: 110 Volts ), ( Wattage: 4.5 Kw ), ( Features: Electric ), ( Product Dimensions: 9.06w X 6.7h )

Review RANEIN 4.5 Kw 110v Electric Tankless Water Heater Ultra Instant On demand Under sink

The Ranein RE45K-U 4.5 Gallons 110V Electric Tankless Water Heater is an ultra-compact, on-demand under-sink solution designed to provide hot water instantly and efficiently for small applications. This electric water heater is ideal for kitchens, bathrooms, and other areas where a constant supply of hot water is required.

Measuring only 12.2 inches high, 11.8 inches wide, and 4.9 inches deep, the RE45K-U is compact enough to fit under most sinks while offering a generous 4.5 gallons per minute (GPM) flow rate. With an ultra-thin design, it can be easily installed in confined spaces, making it a popular choice for RVs, boats, and small homes.

This electric tankless water heater features a robust heating element made of high-quality copper and a durable stainless steel outer casing, ensuring long-lasting performance and reliability. The unit is equipped with advanced temperature control technology, enabling it to maintain a consistent water temperature between 95 F and 140 F (35 C and 60 C), providing you with a comfortable showering or washing experience.

The RE45K-U also features a built-in freeze protection mechanism, which automatically activates when the temperature drops below 32 F (0 C), safeguarding the unit against potential damage caused by freezing temperatures. This added feature makes it an excellent choice for users in colder climates.

Installation is a breeze with the RE45K-U, as it comes with a user-friendly, plug-and-play design. Simply connect the water supply lines and drain, plug in the unit, and you're ready to enjoy continuous hot water on demand. A digital display on the unit allows for easy temperature adjustment and diagnostics.

The Ranein RE45K-U 4.5 Gallons 110V Electric Tankless Water Heater is an excellent investment for homeowners or RVers seeking a reliable, compact, and energy-efficient solution for their hot water needs. With its advanced features and user-friendly design, this tankless water heater is sure to provide you with endless hot water, saving you time and money in the long run.

Ranein RE45K-U 4.5 KW 110V Electric Tankless Water Heater Ultra is a popular under-sink model for point-of-use hot water applications. Let's explore its pros and cons:

Pros:

1. Energy Efficiency: Tankless water heaters do not store water, which means they do not lose standby heat. They only heat water on demand, making them energy-efficient.

2. Compact Size: The Ranein RE45K-U is designed for under-sink installation, making it an ideal choice for small spaces.

3. Quick Recovery Rate: This model can heat water quickly, providing an endless supply of hot water.

4. Cost-Effective: Electric tankless water heaters are generally less expensive to install and operate compared to their gas counterparts.

Cons:

1. Limited Flow Rate: The flow rate (amount of water heated per minute) may be limited, depending on the temperature rise required.

2. Higher Upfront Cost: Although electric tankless water heaters are cost-effective in the long run, they have a higher upfront cost compared to storage tank models.

3. Requires Electricity: Since this model is electric, it may not be suitable for areas without a reliable power source.

4. Potential for Scaling: Hard water areas may experience scaling issues, which can reduce the heater's performance and lifespan.

In conclusion, the Ranein RE45K-U 4.5 KW 110V Electric Tankless Water Heater Ultra is a compact, energy-efficient, and quick-heating solution for point-of-use hot water applications. However, its limited flow rate, higher upfront cost, and dependency on electricity are important considerations.

If you have a reliable power source, a small space, and require hot water on demand, the Ranein RE45K-U could be a suitable choice for you. However, if you need a higher flow rate or prefer a more cost-effective option, you may want to consider a storage tank water heater or a larger capacity tankless model.

Details:

VISUAL CONTROL FUNCTION The tankless water heater is equipped with a digital display and touch control panel, so setting the temperature easy. The intelligent display temperature is convenient for setting the appropriate different seasons and using hot water. No standby energy consumption. It can be installed anywhere near the water outlet to avoid space waste and hygiene problems.

Stainless steel heating element, no water storage, prevents sediment/scale accumulation. Electric water heater dimension: 9.06 x 2.34 6.7 ; connection: 1/2 NPT. NOTE Make sure this under sink water heater is sized to fit your hot needs: 4.5 kW; circuit breaker required: 1 x single pole 40 amps, 110-120 V AC, no plugs. Features over-heating protection, low water flow dry combustion anti-freezing high pressure and flame failure device.IPX4 waterproof.

SMALL AND CONVENIENT Compared to tank water heaters, the mini tankless heater is compact and does not take up space. Tankless water heaters support three installation methods: horizontal, vertical, and inclined. ADVANCED SAFETY PROTECTION SYSTEM With CSA certification, it is safe as per Canadian and US Standards. UNDER SINK INSTANT WATER HEATER This Uses a 4.5KW heating system 24/7, so instant hot/warm water is continuously supplied to your entire home at preset temperature when needed.

They are suitable for under sinks, kitchens, bars, hair salons, and communities.

part #: re45k price

  • $139.26

specifications wateheat:

  • brand: Ranein
  • mpn: Re45k-u
  • type: Tankless Water Heater/boiler
  • color: Gray
  • item height: 6.7 In
  • voltage: 110 Volts
  • wattage: 4.5 Kw
  • features: Electric
  • product dimensions: 9.06w X 6.7h

returns wateheat:

  • method: Money back
  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Seller

seller wateheat:

  • rating: 100.0%
  • # reviews: 1
  • city: El Monte, California

general wateheat:

  • Heating, Cooling Air > Water Heaters > Tankless Water Heaters
  • condition: New

offer wateheat:

  • started: July 13, 2025
  • options: Ship-to-home
  • sold: 0
  • availability: In Stock
  • quantity: 5

payments wateheat:

  • credit card: Mastercard
  • wallet: Google-pay
  • other

shipping wateheat:

  • carrier: FedEx
  • cost: $0.00
  • transit: 5-11 Days
  • type: Fixed
  • class: Economy
  • service: FedEx Ground Economy
type: tankless water heater/boiler, item height: 6.7 in, voltage: 110 volts, wattage: 4.5 kw, features: electric, product dimensions: 9.06w x 6.7h,
category: home & garden > heating, cooling air > water heaters > tankless water heaters, color: gray, sku: 4442588167307641,

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1 offer $139.26 USD
  • Offer #1: $139.26 price + $0.00 shipping estimate = $139.26* total. Small & Convinient More compact than traditional tank water heaters, this mini tankless design saves valuable space and can be installed close to the point of use for improved hygiene and efficiency. Manufacturer: Ranein.FREE SHIPPING

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