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- A 96% AFUE, two-stage condensing gas furnace featuring a maximum heating input of 70,000 BTU/h and a variable-speed ECM blower. It is part of Navien's NDF series designed for high efficiency, flexible 4-way multi-position installation, and quiet, consistent home climate control.
- 22.5-inch cabinet width and 34-inch cabinet height.
- Approved for upflow, downflow, horizontal left, or horizontal right positions with zero-clearance capability.
- Direct vent and non-direct vent options with concentric venting approval. Standard natural gas with available propane conversion kits.
- Built-in diagnostics with fault code history and modular blower/heat exchanger assemblies.
- AFUE Rating96%Input Capacity70,000 BTU/hrNominal Cooling Capacity1.5 to 4.5 tonNumber of Stages2Output Capacity67,000 BTU/hrType4-Way MultipoiseConnection Size1/2 in NPTDimensions22-1/2 in W x 34 in H x 29-1/2 in DFuel TypeNatural GasIgnition TypeHot Surface IgniterManufacturerNAVIEN INCManufacturer #NDF600-070M2V4CMaterialSteelMotor HP.75 HPMotor TypeVariable Speed ECMSeriesNDF-600Temperature Rating35 to 70 deg FVoltage Rating120 VWire Size14 AWG