The NXW700 is a dual-fuel hybrid water heater and the first heat pump water heater with a gas backup, designed to maximize both efficiency and hot water performance. In its default gas/electric hybrid mode (E-Saver), the NXW700 achieves a UEF of up to 3.80 and an FHR of up to 100 gallons. The NXW700 also features a stainless-steel tank, low-NOx burner, TOU and demand response controls, anti-legionella protection, and more.

Models:
NXW700-050A34G
NXW700-050A36H
NXW700-050A*4G
NXW700-050A*6H
NXW700-050A3*G
NXW700-050A3*H

The EcoPort implementation of the NXW700 Series is identical to the NWP500 Series.