Efficient and earth-friendly products designed for any size home.
High-efficiency condensing and non-condensing tankless water heaters offer endless hot water and reduce gas usage.
Condensing combi-boilers deliver high-efficiency endless hot water and space heating in one compact unit.
Space-saving high-efficiency condensing boilers provide the ultimate home heating and comfort experience.
High-efficiency hydro-furnaces provide consistent comfort while minimizing energy consumption.
Protect your water supply and your water heating equipment with eco-friendly water treatment solutions.
Efficient, durable and high-performance products for any commercial application.
Space-saving high-efficiency condensing boilers provide the ultimate heating and comfort experience.
Protect the water supply and water heating equipment with eco-friendly water treatment solutions.
Learn more about our products for home owners
> Accessories
> Credits and Rebates
> NaviSizer
> Product Registration
> Find an Installer
Download the new Navien mobile app!
It may have been moved.
Please try searching for what you're looking for or contact us with more information about the problem.