Navien is the most Efficient

    Navien The Most Efficient Navien America, a subsidiary of the South Korean company Kyung Dyong Navien, is now manufacturing the most efficient tankless water heaters in the industry. These Energy Star-rated water heaters achieve energy factors (EFs) as high as 0.98 by using conventional and condensing heat exchangers to capture heat from flue gases as well as latent heat generated when water vapor in these gases condenses into liquid....

    Read More