The global leader in energy efficient technology KD Navien was an early leader in developing condensing
technology for boilers and water heaters. Condensing technology maximizes energy by using unused heat emitted from flue
gases. As a result, energy consumption and greenhouse gases are significantly reduced. Emission temperatures are
much lower too.
When it comes to water heater performance, it’s all about output.
The NPE-S 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 operating costs for customers makes it a smart choice.
Navien was first to offer dual stainless steel heat exchangers, rather than copper, which extends the life of the unit by resisting corrosion. Energy Star highest rated gas water heater The NPE is the most energy efficient* tankless water heater series in the industry. Ultra condensing technology delivers cooled exhaust gas and high performance up to 0.97UEF/0.99EF. *DOE Energy Star Directory.