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27kW Tankless Water Heater Electric, APUS 240V On Demand Instant Hot Water with Memory Function & LED Display, Energy-Saving Whole Home Water Heating System, Up to 6.5 GPM and Space Saving Design

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$297.49 Why this price?
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Availability: In Stock.
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Arrives Thursday, Apr 30
Order within 1 hour and 42 minutes
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Style: AP-27kW


Features

  • Endless Instant Hot Water On Demand: Experience continuous electric tankless water heater performance with our powerful 27kW tankless water heater, delivering on-demand hot water at up to 6.5 GPMideal for 3-4 simultaneous uses (showers, sinks, appliances). The advanced cast aluminum heating element ensures rapid, efficient heating in this tankless hot water heater electric, with no preheating, no waiting, and no cold interruptions.
  • Smart Control with Memory Function: Precisely set your temperature (86F-140F) via the LED display on this electric tankless water heater 240V, with 1F adjustments for ultimate comfort. The memory function saves settings after power cycles, while self-modulating tech adjusts energy use for efficiencyperfect for smart tankless water heater operation.
  • Compact & Space-Saving Design: This sleek electric water heater (17.72" x 11.42" x 3.54") fits tight spaces, saving 90% more room than tank models. With 3/4" NPT connections and 240V compatibility, installation is effortless (requires 340 A breakers,68 AWG cable)ideal for whole-house or point-of-use setups.
  • Energy Efficient & Cost Effective: Our electric tankless water heater achieves 99.8% thermal efficiency, cutting 60% energy costs by only heating water when needed. Zero standby loss and anti-scale cast aluminum maximize savingseco-friendly and budget-friendly.
  • Reliable Safety Protection: This tankless water heater electric features water-electricity separation and multi-layer safeguards (overheat, dry-fire, leakage protection) for worry-free use. Corrosion-resistant cast aluminum ensures durability, backed by rigorous testing.

Brand: APUS


Power Source: Hard Wiring Required


Product Dimensions: 11.42"W x 17.72"H


Special Feature: 24/7 Customer Service and Warranty, Demand Hot Water, High Efficiency, Separation of Water and Electricity, ±1°F Stable Temperature Control See more


Color: Gray


Power Source: Hard Wiring Required


Special Features: 24/7 Customer Service and Warranty, Demand Hot Water, High Efficiency, Separation of Water and Electricity, ±1°F Stable Temperature Control


Wattage: 27000 watts


Voltage: 240 Volts


Maximum Temperature: 140 Degrees Fahrenheit


Efficiency: 99.8%


Mount Type: Wall


Is Electric: Yes


Color: Gray


Style Name: AP-27kW


Material Type: Sheet Metal with Insulating Paint


Item Dimensions W x H: 11.42"W x 17.72"H


Item Weight: 18.96 Pounds


Brand Name: APUS


Model Number: AP- ADSK-270G13


Manufacturer: APUS


Included Components: Water heater x1;Instruction manual x1;Rubber x5;Screw x5;Installation guide card x1;φ24×3 sealing ring x2


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 30

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

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great product
Style: AP-27kW
Worked wonderfuly
Reviewed in the United States on March 23, 2026 by Stump

  • Electrician with non-install it
Style: AP-27kW
Cramped and frayed wires electrician would not install
Reviewed in the United States on February 2, 2026 by Dreama1006

  • Bargain
Style: AP-27kW
It is a great buy it competes with more expensive units doing the same thing.
Reviewed in the United States on April 2, 2026 by Donvey

  • hot water
Style: AP-27kW
did not heat had to return
Reviewed in the United States on January 12, 2026 by Ken Stewart

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