To help explain "condensing technology," imagine the condensation on a glass of ice water. This condensation is created inside Navien's condensing heat exchanger (secondary heat exchanger) from the incoming cold water cooling the hot gases inside the unit. Navien's state-of-the-art, stainless-steel condensing heat exchanger then traps this condensation and uses it, making the whole process incredibly efficient and economical.
This condensation (or vapors and gases) would normally escape through the vents in a conventional tankless water heater. But with Navien's cutting-edge technology, our Water Heaters reuse the condensation, providing you with the most efficient and economical Water Heater on the market today.
Navien’s stainless steel
Condensing Heat Exchanger
recovers heat from water
vapor in the flue gas
Hot exhaust gas is recycled through the condensing
heat exchanger, saving energy and money.
Navien Condensing Tankless
Hot exhaust gas is flown away,
wasting energy and money.