ANZZI Tankless Electric Water Heater Atami 27 kW High-Flow Instant Hot Water Heating System
ANZZI Tankless Electric Water Heater Atami 27 kW High-Flow Instant Hot Water Heating System
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ANZZI

ANZZI Tankless Electric Water Heater Atami 27 kW High-Flow Instant Hot Water Heating System

|19 ratings

Key item features

  • Powerful Output: Delivers a maximum output of 27 kW, enabling simultaneous hot water usage across multiple fixtures.
  • Efficient Electric: Operates as a fully electric system, bypassing the complexities associated with gas-powered units for clean and reliable heating.
  • Space-Saving Design: Eliminates the need for a traditional water tank, thereby reducing space requirements and minimizing heat loss over time.
  • Consistent Temperature: Features advanced controls to maintain a stable water temperature, preventing cold shocks or fluctuations under varying demands.
  • High-Demand Suitability: Specifically designed to meet the significant hot water needs of large homes, multiple bathrooms, or high-flow appliances.
  • Compact Form: Despite its powerful capabilities, the unit maintains a slim and adaptable form factor for easy integration into existing utility spaces.
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Specs

Water heater type, Tankless Water HeatersFuel type, ElectricBrand, ANZZIIs energy star-certified, NRec location, BathroomRec. room, Bathroom

About this item

Product details

Handle high-demand households with the ENVO Atami 27 kW tankless electric water heater. This powerful unit supplies on-demand hot water for multiple bathrooms, large families, or high-flow appliances. Its smart control ensures stable temperature, and its tankless design reduces energy waste, making it an excellent choice for modern, efficient home heating.
  • Maximum Output 27 kW: Provides abundant hot water flow that supports simultaneous usage across multiple fixtures.
  • Electric Efficiency: Fully electric design avoids the challenges of gas units, offering clean, reliable heating.
  • Tankless Benefits: Eliminates the need for a water tank, reducing space needs and heat loss over time.
  • Consistent Temperature: Advanced controls regulate output to avoid cold shots or fluctuations under varying loads.
  • Ideal for Large Homes: Designed for households with significant hot water needs, ideal for multiple bathrooms or families.
  • Slim & Adaptable: Though powerful, the unit maintains a compact form factor to integrate into existing utility spaces.
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Specifications

Water heater type

Tankless Water Heaters

Fuel type

Electric

Brand

ANZZI

Is energy star-certified

N

Warranty

Warranty information

Limited Lifetime

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Customer ratings & reviews

4.3 out of 5 stars
stars
19 ratings15 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars42% (8)
  2. 4 stars53% (10)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star5% (1)
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Showing 1-3 of 15 reviews

Sep 26, 2025
Reviewer name: ScottW
5 out of 5 stars
5 out of 5 stars review

Excellent HWH At A Great Price!

Just purchased and installed. Great HWH. It took a day or so to break-in, but now water is hot and flows heavily for me. Relatively easy install and set-up. I really like the remote control tool that allows me to set the temp with a turn of the knob, and also reflets any error signals for the system.

Review from anzzi.com
Helpful?67TMOIUK6LGH271960568
Jan 4, 2026
Reviewer name: Bob101
5 out of 5 stars
5 out of 5 stars review

New Water Heater

So far so good. Works as advertised. Will recommend.

Review from anzzi.com
Helpful?67TMOIUK6LGH271960568
Oct 28, 2025
Reviewer name: ShopCave
5 out of 5 stars
5 out of 5 stars review

Almost prefect for my requirements.

I spent quite a bit of time researching the best option for my shop sink, which was prewired with 10-gauge wire and only had a 30-amp double-pole breaker available. This unit, with its 1.7 gallons-per-minute flow rate, turned out to be the best fit for my setup. I decided not to use a flow-restrictor nozzle because I didn't want to affect the cold water flow. Instead, I control the flow manually by adjusting how much water I allow through. My only complaint is that I wish the unit had an inline restrictor built in for the hot water path only. After some research, I realized I could probably make one myself, but it wouldn't be easy—and as far as I can tell, there isn't a ready-made solution for exactly what I need.

Review from anzzi.com
Helpful?67TMOIUK6LGH271960568
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