“The NDF600 represents another important step in the continued expansion of Navien’s HVAC product portfolio,” said Nick Kamm, hybrid HVAC product manager at Navien. “This furnace has been designed to meet the needs of today’s contractors by making installation and service easier, while providing homeowners with the comfort, efficiency, and reliability they expect from Navien.”

The NDF600 was developed to simplify installation across a wide variety of residential applications. Its compact cabinet, available in two widths, supports upflow, downflow, horizontal left, and horizontal right installations from a single platform. Zero-clearance installation and modular blower and heat exchanger assemblies further reduce installation and service complexity, while integrated diagnostics help streamline maintenance.

Available in five models ranging from 50,000 to 105,000 Btuh, the NDF600 is dual-fuel compatible for pairing with heat pumps and is certified for high-altitude applications, giving contractors the flexibility to specify the furnace across a broad range of installations.

The NDF600 also integrates seamlessly with Navien’s growing lineup of HVAC products, including inverter-driven air conditioners and the NAM series of cased coils, creating a complete, capacity-matched comfort system designed to maximize year-round performance, efficiency, and homeowner comfort.

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