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Best Hot Water Experience
Navien Water Heater

With decades of research and expertise in precise temperature control, KD Navien has earned the largest market share in North America in the tankless gas water heater category and built a reputation for excellence.
Our diverse product line-up ranges from highly-efficiency condensing tankless gas water heaters to easy-to-install electric water heaters.

At the Center of North America’s
Premium Water Heater Market

Since pioneering U.S. exports of tankless gas water heaters in 2008,
KD Navien has become the market leader in North America and the top exporter worldwide.

South Korea

Top exporter for 34consecutive years

Ranked #1 in boilers and water heaters, accounting for over 87% of Korea’s total boilers and water heater exports in 2024.

North America

Largest market share in North America

Ranked #1 in North American market share for tankless gas water heaters in 2024.

Navien Water Heater
Core Technologies

Energy Efficiency by Condensing
Exceptional Energy Efficiency Powered by Navien Condensing Technology.

Up to 0.96 UEF / 15:1 TDR
Enjoy plenty of hot water without worrying about gas bills, thanks to excellent energy efficiency.

An eco-friendly, high-efficiency energy system that captures and recycles the latent energy hidden in exhaust gases instead of venting them straight outside.

EZ Nav
EZ Nav
Multi-line control with built-in intuitive software

Navien’s new backlit EZNav™ control panel uses simple text and icons to make set up, operation status and troubleshooting faster and easier than ever before.
· Self-diagnostics
· Displays temperature and water flow rate
· Displays status of cascade operation
· Convertible display from °F to °C
· User-friendly interface
· Easy setup

NaviLink
Cascade up to 32 units with Navien Ready-Link® technology.

With Navien's Ready-Link® cascading technology, when a unit gets up to 80% capacity the next unit will turn on to help meet requirements. The flow on demand ratio will continue until all 32 units are generating hot water as needed. The Navien cascading system also balances out the workload of each unit for longer life.

Explore the Navien
Commercial Water Heater Line-up

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