Thermomate ES400B 4 Gallon UL Listed Under Sink Water Heater

Instant Hot Water

4 Gallon Point of Use Water Heater

Experience instant, on-demand hot water right at your sink with our compact and efficient 4 gallon point-of-use water heater. Designed for immediate access to hot water, this unit ensures no more long wait times or wasted water.

Easy Installation

Quick and Seamless Setup

Installation is a breeze with its 1/2" NPT connector and corded plug into a 120V outlet. Simply tap into the water line and install the heater at your sink. Included safety features like a temperature and pressure relief valve make installation a safe and simple process. It can be mounted on shelves, walls, or floors, fitting snugly in tight spaces.

Space-Saving Design

Compact and Durable

At 12.6"W x 12.4"D x 24.3"H (including valve), this heater is designed to save space, making it ideal for under-sink placement in kitchens, bathrooms, and other areas. Even small cabinets can accommodate its compact size, ensuring seamless integration with your existing setup.

Durable Construction

Premium Material and Certification

Featuring gold porcelain lining for enhanced insulation and protection against leaks, our water heater is both safe and long-lasting. It is CSA T&P relief-valve certified and UL certified, ensuring a reliable service life and high safety standards. Manufactured in the USA, this heater provides both quality and peace of mind.

Flexible Usage

Serving a Variety of Needs

This water heater can serve as a stand-alone unit or as a booster to supplement a larger hot water system. With a temperature adjustment knob that ranges from 68℉ to 140℉, you can control your water temperature to meet your specific needs. Whether you need warmth for a quick hand wash or hot water for longer tasks, this heater meets all your demands efficiently.

By providing instant hot water, easy installation, and a compact design, this water heater meets the needs of busy households and commercial users alike. Its durable construction and safety features ensure a reliable performance for years to come.