Can this go in any house? Like will any hookup fit it?

Greetings from Airthereal. Please confirm that your breaker panel can meet the required specifications for your unit. 27k: 240V Outlet, 3x 40A Double Pole; Circuit Breaker, 3x 8AWG/2 Wires

What is the max GPM of 27kw water heater?

Greetings from Airthereal. Depends on what the inlet tep. is and the outlet tep. you set. Set the outlet tep. as 108℉ : When inlet tep. is about 41℉, GPM will be 2.5, fit for Shower+Faucet use. When inlet tep. is about 50℉, GPM will be 2.9, fit for 2 Showers. When inlet tep. is about 59℉, GPM will be 3.9, fit for 2 Showers+Faucet. When inlet tep. is about 68℉, GPM will be 4.3, fit for 2 Showers+2Faucets. When inlet tep. is about 77℉, GPM will be 5.5, fit for 3 Showers.

These units draw twice as much elec. than the water heater, family of 8...2 showers...will this be more expensive to use than the the water heater?

Save Energy: The self-modulating temperature technology only heats up water when you need it, which means you won't be wasting energy by storing hot water in a tank. You can save up to 50% on water heating energy compared to a typical tank water heater.

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Airthereal Electric Tankless Water Heater, 27kW, 240Volts - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere - for 3 Showers, Evening Tide series

Airthereal Electric Tankless Water Heater, 27kW, 240Volts - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere - for 3 Showers, Evening Tide series

Product ID: 533929421

Details

Brand
AIRTHEREAL
Capacity
240 Gallons
Power Source
Corded
Product Dimensions
3.43"W x
Special Feature
Dry Combustion

⚡27kW high power output

💡Self-modulating energy saver

🛠️Wall-mounted, space-saving design

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Description

🔥 Instant Heat, Infinite Comfort — Upgrade Your Shower Game!

COMPACT POWERHOUSE - Uses 90% less space than traditional tank heaters—perfect for modern living.
SLEEK USER FRIENDLY - LED display and instant hot water combine style with convenience.
SAFETY FIRST TECHNOLOGY - Equipped with dry combustion, overheat, and leakage protections for peace of mind.
SMART ENERGY EFFICIENCY - Self-modulates to cut water heating energy use by up to 50%.
ENDLESS HOT WATER ZERO WAIT - Never run out of hot water, even with 3 simultaneous showers.

The Airthereal Electric Tankless Water Heater (27kW, 240V) delivers endless on-demand hot water with a compact, wall-mounted design that saves 90% space. Its self-modulating technology reduces energy consumption by up to 50%, while advanced safety features ensure reliable, worry-free operation. Ideal for households needing simultaneous hot water for up to 3 showers, this sleek unit combines efficiency, safety, and modern convenience.

Specifications

ASIN	B0BXKHYD2R
Best Sellers Rank	#98,102 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #111 in Water Heaters
Brand	AIRTHEREAL
Brand Name	AIRTHEREAL
Capacity	240 Gallons
Color	Black
Customer Reviews	4.1 out of 5 stars 879 Reviews
Efficiency	High
Flow Rate	0.48 Gallons Per Minute
Heat Output	27 Kilowatts
Included Components	1x 27kW Water Heater, 1x User Manual
Is Electric	Yes
Item Depth	Shallow
Item Dimensions W x H	3.43"W x 12.2"H
Item Type Name	27kW Electric Tankless Water Heater
Item Weight	19 Pounds
Manufacturer	Airthereal
Manufacturer Part Number	EVT-27K
Material Type	Stainless Steel
Maximum Pressure	108.78 Pound per Square Inch
Model Number	EVT-27K
Mount Type	Wall
Power Source	Corded Electric
Product Dimensions	3.43"W x 12.2"H
Special Feature	Dry Combustion Protection, High Temperature Protection, Instant Hot Water, LED Display, Overheat Protection Special Feature Dry Combustion Protection, High Temperature Protection, Instant Hot Water, LED Display, Overheat Protection See more
Special Features	Dry Combustion Protection, High Temperature Protection, Instant Hot Water, LED Display, Overheat Protection
Style Name	Indoor Installation
UPC	816621025229
Voltage	240 Volts
Wattage	27000 watts

Reviews

E**Y

19.01.2022

G**T

3.03.2026

A**B

23.04.2024

K**N

30.01.2026

E**M

16.02.2024

S**E

19.04.2026

L**N

13.02.2026

P**Y

25.10.2025

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