Discover high-efficiency gas tankless water heaters in condensing & non-condensing models, providing endless hot water on demand and lower utility costs.

Innovative technology and advanced high-efficiency features on the NPE-2 make it easier than ever to go Navien tankless.

Navien's NPE-A2 condensing tankless water heaters include a patented built-in buffer tank, recirculating pump & fine-tuned controls for comfort & convenience.

Discover high-efficiency tankless gas water heaters in condensing & non-condensing models, providing endless hot water on demand and lower gas utility costs.

The NPE-S2 condensing tankless water heaters are so efficient that they outperform much larger capacity non-condensing competitors. More output for the money, lower installation costs and lower …

Learn how our ultra high-efficiency condensing tankless water heaters work and outperform non-condensing competitors, for more output & lower operating costs.

Explore our water heaters, including tankless and heat pump models. Get efficient, endless hot water for your home with advanced technology & smart features.

What non-condensing tankless water heaters are, how they work & the difference between condensing vs non-condensing in terms of cost, upkeep & efficiency.

Explore non-condensing outdoor gas tankless hot water heaters in natural gas (NG) or liquid propane (LP) with high-efficiency low NOx stainless steel burners.

Use our quick & easy locator to find an installer, service provider or distributor for Navien tankless water heaters, boilers & combi-boilers in your area.