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Electric Tankless Water Heater
Airthereal Electric Tankless Water Heater - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere
Airthereal Electric Tankless Water Heater - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere
Electric Tankless Water Heater
Airthereal Electric Tankless Water Heater - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere
Electric Tankless Water Heater
Electric Tankless Water Heater
Electric Tankless Water Heater
Electric Tankless Water Heater
Electric Tankless Water Heater
Airthereal Electric Tankless Water Heater - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere
Airthereal Electric Tankless Water Heater - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere
Electric Tankless Water Heater
Electric Tankless Water Heater
Electric Tankless Water Heater
Electric Tankless Water Heater
Electric Tankless Water Heater
Airthereal Electric Tankless Water Heater - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere
Airthereal Electric Tankless Water Heater - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere
Electric Tankless Water Heater
Airthereal Electric Tankless Water Heater - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere
Electric Tankless Water Heater
Electric Tankless Water Heater
Electric Tankless Water Heater
Electric Tankless Water Heater
Electric Tankless Water Heater
Airthereal Electric Tankless Water Heater - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere
Airthereal Electric Tankless Water Heater - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere
Electric Tankless Water Heater
Electric Tankless Water Heater
Electric Tankless Water Heater
Electric Tankless Water Heater
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Electric Tankless Water Heater

Regular price $415.00 $415.00

▶ Warranty: We provide a 1-year warranty for the main unit. The mainboard, relay, LED display, heating element, and other major parts have a warranty for 3 years from the date of purchase.

What Is a Tankless Water Heater?

A tankless water heater heats up water on demand instead of storing heated water in a storage tank. Due to its short heating time, tankless water heaters are perfect for cooking areas, additional bathrooms, or any place where water needs to be used at any time. Also, because of its on-demand heating instead of a holding tank, our tankless water heaters are 90% smaller than a traditional water heater.

Tankless Benefits

Endless, on-demand hot water

Provide endless hot water on demand with no preheating or sudden temperature fluctuations.

Better Value Than a Tank

Water is only heated when you need it, not stored in a hot water tank. The self-modulating temperature technology only uses energy to heat up water while you are using it, which saves up to 50% on water heating costs compared to a typical tank water heater.

Save Valuable Space

A water heater in the basement or utility closet takes up a ton of space. This wall-mounted water heater uses 90% less space than a traditional hot water heater with a tank.

How are “Traditional” Tank Storage Water Heaters Different?

 

Tankless Water Heater

Tank Water Heater

Size

90% smaller than traditional water heater

Need quite a bit of room to install

Power Supply

8KW-27KW

1.5K-3KW

Performance

Water is heated on demand, not stored in a tank

 

Only holds a fixed amount of hot water 

Energy Use

Save 50% on water heating

 

Holds heated water all-day

Installation

Can be installed anywhere as long as cold and hot water pipes are installed in advance.

Needs to be installed on the load-bearing wall.

Cleaning & Maintenance

Non-scaling, so no special maintenance is required.

Must flush tank twice a year to remove sediment and mineral scale.

 

Which Electric Tankless Water Heater Size is Right for You?

 

KW Inlet Temp(°F) GPM Approx Usage Outlet Temperature(°F)
6.5 41 0.7  Low Flow Faucet 104
50 0.8  Low Flow Faucet
59 0.9  Low Flow Faucet
68 1.2  Bathroom Faucet
77 1.5  Kitchen Faucet
8 41 0.7  Low Flow Faucet 108
50 0.9  Low Flow Faucet
59 1.0  Bathroom Faucet
68 1.3  Bathroom Faucet
77 1.6  Kitchen Faucet
9 41 0.9  Low Flow Faucet 108
50 1.0  Bathroom Faucet
59 1.2  Bathroom Faucet
68 1.5  Kitchen Faucet
77 2.0  Shower
14 41 1.4  Kitchen Faucet 108
50 1.6  Kitchen Faucet
59 1.9  Kitchen Faucet
68 2.3  Shower
77 2.4  Shower
18 41 1.7  Kitchen Faucet 108
50 2.0  Shower
59 2.4  Shower
68 2.9  Shower
77 3.8  Shower
27 41 2.5  Shower 108
50 2.9  Shower
59 3.5  Shower
68 4.3  Shower
77 5.5  Shower

 

Application Key
Description GPM Range
Low Flow Faucet 0.5 0.5-0.9
Bathroom Faucet 1 0.5-1.3
Kitchen Faucet 1.5 1.0-2.2
Shower 2 1.5-2.5

How to install a water heater?

Evening Tide's Specification

Model

EVT-8K

EVT-9K

EVT-14K

EVT-18K

EVT-27K

Voltage

240 V

240 V

240 V

240 V

240 V

Power

8 KW

9 KW

14 KW

18 KW

27 KW

Min. Required Circuit Breaker Size

40 AMP

40 AMP

60 AMP

2 x 40 AMP

3 x 40 AMP

Max. Amperage

33.3 A

37.5 A

58 A

75 A

113A

Recommended Wire Size

8AWG

8 AWG

6 AWG

2 x (8AWG/2)

3 x (8AWG/2)

Min. Water Flow 

0.475GPM / 1.8L/min

0.475 GPM / 1.8 L/min

0.475 GPM / 1.8 L/min

0.475 GPM / 1.8 L/min

0.475GPM / 1.8L/min

Safe Operating Pressure

7.25PSI - 108.78PSI

7.25 PSI - 108.78 PSI

7.25 PSI - 108.78 PSI

7.25 PSI - 108.78 PSI

7.25PSI - 108.78PSI

Water Connections

½’’ NPT

½’’ NPT

½’’ NPT

¾ ’’ NPT

¾ ’’ NPT

Installation

Wall-Mounted

Wall-Mounted

Wall-Mounted

Wall-Mounted

Wall-Mounted

Temperature Setting

Digital Panel

Digital Panel

Digital Panel

Digital Panel

Digital Panel

Dimensions (LxWxH)

13.08 x 8.04 x 2.55 Inch

16.14 x 9.84 x 2.6

15.87 x 11.14 x 2.87

17.25 x 12.22 x 3.43

17.25 x 12.22 x 3.43 inch

Weight

6.6 lbs

8.8 lbs

12.76 lbs

16.06 lbs

19.18 lbs

 

How to choose the right electric tankless water heater?

The water heater’s power is measured in kilowatts (kW), which refers to the power of the electric heating tube in the water heater. The greater the power, the more heat is generated. This means less heating time is required and there is a higher load on the wire.

When purchasing an electric tankless water heater, you can choose your preferred power level for what you need, the number of faucets, and the water consumption habits.

In addition, the climate in the southern US is warmer and the requirements for the heat load (power) of the water heater are lower. From an economic point of view, a 14kW water heater can usually meet the requirements for comfortable bathing. Meanwhile, in the northern US, the outdoor water temperature is lower, especially in winter when the heat load (power) of the water heater needs to be large enough to meet the requirements of comfortable bathing. If you arre in the northern areas of the US, you should choose an 18kW water heater if you plan to use the water heater for a shower or bathtub.

If you have multiple showers, choose a high-power capacity water heater or try to install multiple water heaters.

Click here to learn how to choose the right electric tankless water heater.

Is hot water from the water heater safe to drink?

Please DO NOT directly drink the water from the water heater. The water from the faucets must have drinking water quality and untreated plumbing might have a bacteria risk, thus it is advised to not use heated water for drinking.

Will one tankless water heater be enough to heat my entire house?

Maybe. You must choose the proper model to suit your home’s hot water needs, which is based upon the maximum flow of hot water you need at any one time. You can buy tankless water heaters that are capable of handling one shower at a time and others that can sustain a maximum of two showers operating at the same time.

What If I live in a cold climate in the winter? 

The inlet water temperature varies from season to season, so it is advisable to choose a more powerful water heater to meet the hot water demand in winter. Smaller machines may be sufficient in the summer, but may encounter conditions that are not hot enough in the winter.

Feel free to contact us via support@airthereal.com if you have any questions on selecting the size of the tankless water heater. We'll be able to provide recommendations of the size of tankless for your unique climate.

What is the power consumption of Airthereal electric tankless water heater?

The instantaneous power consumption while the hot water is running is quite high (up to 9kW, 14kW, or 18kW depending on which model you’re looking at on the product page). However, when no hot water is being used, the power consumption is 0 (or a minuscule amount to run an LED light or something). The total power consumption over the course of several days or longer should be much lower than a tank heater but the short-term power usage while the heater is making hot water will be much higher than a tank heater. It’s just that the unit sits idle most of the time while a tank heater will use power fairly frequently even when no hot water is needed as the water in the tank cools off over time and needs to be re-heated fairly constantly.