Electric Tankless Water Heaters

Electric tankless water heaters provide hot water on demand without relying on a storage tank. This category includes compact point-of-use units for sinks and fixed-flow handwashing stations, low-flow models for lavatories, kitchens, and bar sinks, and higher-capacity options for commercial, industrial, and emergency eyewash applications.

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Helpful Buying Guide

How to Choose an Electric Tankless Water Heater

Compare electric tankless water heaters by the fixture or application they will serve, the available electrical supply, the required flow range, and the temperature-control or diagnostic features needed at the installation.

Visual Guide

Popular examples in this category

2.4 kW 120V Electric Tankless Water Heater2.4 kW 120V Electric Tankless Water HeaterWBB228240114.4 kW Tankless Electric Water Heater14.4 kW Tankless Electric Water HeaterWBB3081311High-Capacity 3-Phase Electric Tankless Water Heater, 67A, 480VHigh-Capacity 3-Phase Electric Tankless Water Heater, 67A, 480VWBB224904812 kW Point-of-Use Electric Tankless Water Heater, 240/208V12 kW Point-of-Use Electric Tankless Water Heater, 240/208VWBB1120991
Use Cases

Match the heater to the demand point

Point-of-use models serve individual sink locations, while fixed-flow units are designed for a single sensor faucet or metering faucet. Other options support low-flow lavatories, kitchens, bar sinks, commercial and industrial hot-water needs, or emergency eyewash and eye-face wash applications.

How to Choose

Start with power, flow, and temperature needs

Confirm the available voltage and phase, such as 120V, 208V, 240V, or 480V 3-phase. Then compare the expected fixture flow and the temperature requirement, including models designed for low-flow activation or applications requiring water temperatures up to 180°F.

Applications

Choose point-of-use or higher-capacity coverage

Compact point-of-use heaters are suited to sinks in offices, stores, restaurants, bathrooms, cabins, and similar locations. Higher-capacity units are represented for commercial and industrial facilities, while a dedicated model supports tepid water for emergency eyewash and eye-face wash use.

Additional Information

Consider installation and operating feedback

Connection type, mounting flexibility, displays, and diagnostic features can affect product selection. Available features include 3/8-inch compression fittings, 3/4-inch NPT connections, flexible mounting orientation, LED or digital displays, test modes, and self-diagnostics.

0.2 GPMLow-flow turn-on

One thermostatic model activates at a stated flow rate of 0.2 GPM.

0.30 GPMLow-flow actuation

One low-flow model activates at a stated flow rate of 0.30 GPM.

2.8–8.0 GPMEmergency fixture flow range

A high-capacity model supports this stated range for eyewash and eye-face wash applications.

Up to 180°FStated application temperature

Selected commercial and industrial models support applications requiring water temperatures up to 180°F.

Comparison Guide

Compare Electric Tankless Water Heater Types

Use the application, electrical requirements, and available controls to narrow the product type that fits your installation.

Product TypeBest-Matched ApplicationsKey Selection Factors
Single-faucet fixed-flow heatersCommercial handwashing stations with one sensor faucet or one metering faucet120V and 1.8 kW, 2.4 kW, or 3.0 kW options; 3/8-inch compression fittings; flexible mounting; status feedback
Point-of-use and low-flow heatersIndividual sinks, bathrooms, offices, stores, restaurants, lavatories, kitchens, and bar sinks208V, 240V, or 240/208V options; low-flow activation where stated; electronic or thermostatic temperature control; compact or flexible installation
Commercial, industrial, and emergency unitsFacility hot-water needs and specified emergency eyewash and eye-face wash applications208V or 480V options; higher kW ratings; stated flow range or temperatures; digital controls, diagnostics, and test features where available
Planning Guide

Plan the right fit before choosing

Plan the Installation

Verify electrical and plumbing compatibility before selecting

The products represented span several electrical configurations, from 120V units for single-faucet handwashing to 208V, 240/208V, 240V, and 480V models for other point-of-use, commercial, and industrial uses. Select a heater that matches the installation's stated electrical supply and connection requirements.

  • 120V models are represented in 1.8 kW, 2.4 kW, and 3.0 kW options for single sensor or metering faucet applications.
  • 240/208V and 240V models are represented for point-of-use sinks and low-flow applications.
  • 208V and 480V models are represented for commercial and industrial installations, including a 480V 3-phase emergency eyewash application.
  • Available plumbing connections include 3/8-inch compression fittings and 3/4-inch NPT connections.
Match Capacity to Fixture Demand

Compare fixed-flow, low-flow, sink, and facility applications

Application type is a primary selection factor. Some compact heaters are specifically intended for one sensor faucet or one metering faucet. Low-flow choices can activate at 0.2 GPM or 0.30 GPM, while the emergency eyewash and eye-face wash model supports a stated flow range of 2.8 to 8.0 GPM.

  • Choose a single-faucet fixed-flow unit for supported commercial handwashing stations.
  • Select a low-flow heater for lavatories, kitchens, bar sinks, and extremely low-flow faucet applications.
  • Use point-of-use sink models where hot water is needed near the demand location.
  • For commercial or industrial needs, compare higher-kW units and their stated temperature capabilities.
Compare Controls and Service Features

Select the level of adjustment and feedback your site needs

Controls vary by model. Electronic or thermostatic temperature controls can support setting the needed water temperature, while digital displays provide operating or status feedback. Some commercial and industrial models also include maintenance or manual test modes, self-diagnostics, SafeStart technology, and a high-temperature limit switch.

  • Electronic controls and adjustable set points support temperature selection for the application.
  • Digital and LED displays provide visible system-status and operating feedback.
  • Maintenance test modes and self-diagnostics help technicians troubleshoot and diagnose supported units.
  • Flexible mounting and compact profiles can help where installation space is limited.
FAQ

Common questions before buying

What is an electric tankless water heater?

It heats water on demand as water flows through the unit rather than relying on a storage tank.

Which units are designed for a single handwashing faucet?

Selected 120V models are designed for commercial handwashing stations using one sensor faucet or one metering faucet in supported fixed-flow applications.

Are there options for low-flow faucets?

Yes. Represented low-flow models activate at stated flow rates of 0.2 GPM or 0.30 GPM and are intended for low-flow fixture applications.

What electrical supplies are represented in this category?

The summaries include 120V, 208V, 240V, 240/208V, and 480V 3-phase models. Verify compatibility with the installation before selecting.

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