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Westinghouse 18kW 240V Tankless Water Heater Electric, 4.2GPM Instant Hot Water Heater, 3-4 Point of Use Hot Water, Wi-Fi Enabled, APOLO-18k

  • Based on 7 reviews
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Availability: 14 left in stock
Fulfilled by Amazon

Arrives Saturday, Apr 26
Order within 5 hours and 27 minutes
Available payment plans shown during checkout

Style: APOLO-18kW


Features

  • APOLO 18kW Important Notes: up to 4.2 GPM for APOLO-18k. Activation flow: 0.66 GPM. Amperage (amps): 75. The product works and is compatible with 2 X 40 AMP (DP) breakers and 2 X 8 AWG wire. Bottom 3/4" NPT water connections
  • Smart Operation: With remote WIFI control, you can adjust the temperature without being near the water heater. The temperature can also be controlled with a rotary button, so you can easily adjust the temperature in 1 increments from 86F to 140F
  • Instant Hot Water: Enjoy continuous, stable hot water without waiting for preheating or worrying about temperature fluctuations. It's suitable for 3-4 usage points throughout the entire house
  • Safety Protection: Westinghouse tankless water heater is ETL certified, equipped with leakage, overheat, and dry-fire protection, The separated heating element minimizes scale and corrosion, ensuring better performance and low maintenance
  • Save Space: Dimensions: 17 x 13 x 4.3 inches. Electric Tankless water heaters are typically smaller than traditional tank water heaters, which can be wall-mounted, and more compact in size. Ideal for small apartments, its perfect for showers, sinks, dishwashers, washing machines, etc

Brand: Westinghouse


Product Dimensions: 13"W x 17"H


Special Feature: 12 Months Warranty, ETL Certified, Works with Google Assistant, Alexa, and Wi-Fi


Color: Gray


Wattage: 18 KW


Brand: ‎Westinghouse


Product Dimensions: ‎13"W x 17"H


Special Feature: ‎12 Months Warranty, ETL Certified, Works with Google Assistant, Alexa, and Wi-Fi


Color: ‎Gray


Wattage: ‎18 KW


Voltage: ‎240 Volts


Maximum Flow Rate: ‎4.2 Gallons Per Minute


Maximum Temperature: ‎140 Degrees Fahrenheit


Efficiency: ‎Efficient


Maximum Pressure: ‎119.97 Pound per Square Inch


Mounting Type: ‎Wall


Is Electric: ‎Yes


Manufacturer: ‎Westinghouse


UPC: ‎850057631173


Manufacture Year: ‎2024


Item Weight: ‎20.3 pounds


Country of Origin: ‎China


Item model number: ‎ET018KA1G


Item Package Quantity: ‎1


Special Features: ‎12 Months Warranty, ETL Certified, Works with Google Assistant, Alexa, and Wi-Fi


Included Components: ‎Installation Guide x 1, Electric Tankless Water Heater x 1, User's Manual x 1, Assembly Kit x 1 (Screw x 5, Rubber Plug x 5, Inlet Filter x 1, Rubber Gasket for Outlet and Inlet x 2)


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: October 10, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Apr 26

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.

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  • Affirm Financing
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  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Works as it should
Style: APOLO-18kW
Workes as it should as of now, straight forward on instalation.
Reviewed in the United States on February 16, 2025 by Mrs.Butterfly1978

  • Perfect for Large Showers and Multiple Uses
Style: APOLO-18kW
I recently installed the Westinghouse 18kW tankless water heater in my home, and it’s been fantastic. We have a large family, and this unit easily provides endless hot water for multiple showers at once. Whether it’s two people showering simultaneously or washing dishes while someone else showers, the water stays consistently hot without any issues. This heater has truly been a game changer for us, and we never have to wait for hot water anymore. ... show more
Reviewed in the United States on January 12, 2025 by Jeff

  • Amazing performance and fast heating
Style: APOLO-18kW
The water heater is exactly what we needed. It delivers fast, consistent hot water at all times. Whether it’s for a shower, laundry, or dishwashing, the hot water is available immediately and at the right temperature. I’ve noticed a significant reduction in waiting time compared to my old water heater. It’s incredibly efficient and gets the job done quickly, which makes life a lot easier. ... show more
Reviewed in the United States on January 12, 2025 by Ronald Duvel

  • Works as intended
Style: APOLO-27kW
I bought this for our barn, and the water entering the barn is very cold, which immediately heats up the water. I tried another one, but the heating time was a bit long. Make sure you know the temperature you entered so that you can buy the appropriate size.
Reviewed in the United States on January 12, 2025 by jack exley

  • Great buy
Style: APOLO-27kW
Works great we run 2 bathrooms no problems heats up fast. Way better then the both we got before.
Reviewed in the United States on January 12, 2025 by Tyler

  • Very nice quality works great!
Style: APOLO-27kW
We love this hot water heater! We have never had 3 showers going at one time, but did leave the dishwasher on once and we could tell briefly when it would kick on as the water would cool for a couple seconds, but picks right back up. We put this in a new construction home and are very pleased with the unit. ... show more
Reviewed in the United States on January 12, 2025 by Pierce Warburton

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