All the hot water you need, for as long as you need it.

we make
it easy to go tankless

“We were tired of running out of hot water, high energy bills and the idea of constantly heating a big old water storage tank. That's why we asked our contractor to install a Navien Premium Efficiency (NPE) tankless water heater. We researched the Energy Star website and found Navien on top of the energy factor list. Now we get endless hot water when we need it and we’re not heating water when we don't.”

Non-Condensing VS Condensing
tankless water heater chicago

How Non-condensing works

tankless water heater Chicago
  1. When a hot water tap is opened, the tankless water heater detects the flow

  2. The flow sensor activates to determine the amount of hot water needed

  3. The igniter activates

  4. The gas control valve opens to supply the correct amount of gas

  5. The burner ignites providing a flame to heat the water

  6. Cold water passes through the heat exchanger

  7. The unit determines outgoing set temperature and adjusts the flame to heat the water

  8. Desired hot water amount delivered to the faucet

Compare our advantages to other non-condensing tankless water heaters

Exclusive Navien NPN-Universal indoor or outdoor unit and NPN-Exterior dedicated outdoor unit. NPN-E outdoor models also feature remote control and built-in button controls for easy service. 

tankless water heater Chicago

NaviLink™ Wi-Fi remote control.

This optional accessory enables you to control temperatures remotely, access usage data and receive diagnostic notifications from your smart phone or tablet.

Space saving and lighter weight design.

These sleek wall-hung units use much less space and are substantially lighter than traditional tank water heaters and other non-condensing tankless water heaters.

Low noise levels.

Installations in or near media rooms, recreation rooms or any living areas of the house are possible with the quiet running NPN tankless water heaters.


Lower energy bills, easier on the planet.


Unlike systems that waste energy to heat large tanks of water, Navien NPN series tankless units utilize 82¢ of every $1 to heat your water. NPN only fires up when hot water is needed allowing great utility savings and a lower impact on the environment.