Pacific Blue Mechanical » Navien NHW-160AI Premium Non-Condensing Tankless Water Heater
The Navien NHW-160AI Premium Non-Condensing Tankless Water Heater is a high-efficiency indoor tankless hot water system designed to deliver reliable and consistent domestic hot water performance for residential applications. Engineered with advanced recirculation technology and durable stainless steel components, this unit provides fast hot water delivery while maintaining energy-efficient operation.
With its built-in recirculation pump and buffer tank, the NHW-160AI helps reduce wait times for hot water and improves overall comfort throughout the home. The NaviTech stainless steel heat exchanger and burner are designed for long-term durability, corrosion resistance, and efficient heat transfer performance.
The Navien NHW-160AI Premium Non-Condensing Tankless Water Heater is designed to improve hot water comfort while optimizing energy use. Its integrated recirculation system ensures faster hot water delivery to fixtures, reducing water waste and improving user convenience.
The stainless steel heat exchanger and burner provide long-lasting reliability and stable performance, even under frequent demand cycles. With cascading capability, multiple units can be connected to support larger households or higher hot water loads.
Its compact indoor design makes it ideal for modern homes where space efficiency and performance are equally important.
| Item | NHW-160AI |
| Gas Input (Domestic Hot Water) | 10,700 - 160,000 BTU/h (3.14 - 46.88 kWh) |
| UEF (NG & LP) | 0.81 |
| Flow Rate - 35°F Temp Rise | 7.5 GPM (28.4 l/m) |
| Flow Rate - 45°F Temp Rise | 5.8 GPM (22 l/m) |
| Flow Rate - 67°F Temp Rise | 4 GPM (15.1 l/m) |
| Dimensions | 17.3" W x 26.5" H x 10.3" D (43.9cm W x 67.3cm H x 26.2cm D) |
| Boiler Weight | 60 lbs (27.2 kg) |
| Installation Location | Indoor wall-hung |
| Venting Type | Forced draft direct vent (indoor only) |
| Ignition | Electronic ignition |
| DHW Water Pressure | 15-150 PSI (1.05-10.55 kg/cm2) |
| Natural Gas Supply Pressure | 3.5 " WC to 10.5 " WC (0.87 kPa to 2.61 kPa) |
| Propane Gas Supply Pressure | 8 " WC to 13 " WC (1.99 kPa to 3.23 kPa) |
| Natural Gas Manifold Pressure (min-max) | 2.8 " WC to 0.7 " WC (0.7 kPa to 0.17 kPa) |
| Propane Gas Manifold Pressure (min-max) | 5.8 " WC to 1.3 " WC (1.4 kPa to 0.32 kPa) |
| Minimum Flow Rate | 0.4 GPM (1.5 l/m), < 0.01 GPM (0.04 l/m) option* |
| Cold Water Inlet | 3/4" NPT |
| Hot Water Outlet | 3/4" NPT |
| Gas Inlet | 3/4" NPT |
| Power Supply | 120V AC, 60 Hz |
| Normal Power Consumption | 95 W |
| Standby Power Consumption | 4 W |
| Anti-Frost Power Consumption | 114 W |
| External Pump | < 150 W, 1.5 A W |
| Fuse | 5.0 A |
| Casing Material | Cold rolled carbon steel |
| Heat Exchangers | Stainless steel |
| Safety Devices | Flame rod, APS, VID (vent installation detector), ignition operation detector, water temperature high limit switch, power surge fuse |
* Available for NHW-A Models configured in an optional ComfortFlow® recirculation mode.
Energy consumption will increase when the system is configured for recirculation.
Navien reserves the right to change specifications at any time without prior notice.
| Product | Warranty Type | Labor | Parts | Heat Exchanger |
| Residential* | Standard1 or Controlled Recirculation2 | 1 Year | 5 Years | 15 Years |
| Residential* | Uncontrolled Recirculation3 | 1 Year | 3 Years | 5 Years |
| Commercial or Combi4 | Standard1 or Controlled Recirculation2 | 1 Year | 5 Years | 5 Years |
| Commercial or Combi4 | Standard or Controlled Recirculation3 | 1 Year | 3 Years | 3 Years |
* Applies only to single family, residential locations.
1 Standard means there is no recirculation being used.
2 Controlled Recirculation means recirculation of the water through the water heater is controlled by either the water heater or an external aquastat.
3 Uncontrolled Recirculation: External pumps configured to circulate continuously through the water heater are subject to the uncontrolled recirculation warranty terms. An aquastat is the minimum pump control requirement for DHW or storage tank recirculation in order to maintain the full controlled recirculation warranty.
4 Combi refers to a combination potable water and space heating application. Water heaters cannot be used in space-heating-only applications or this warranty will be voided.
Pacific Blue Mechanical provides complete supply, installation, repair, and maintenance services for the Navien NHW-160AI Premium Non-Condensing Tankless Water Heater across Metro Vancouver. Whether you are upgrading from a traditional tank system or planning a new high-efficiency hot water installation, our licensed technicians deliver end-to-end solutions tailored to your home’s needs.
If requested, we can directly source and supply the NHW-160AI for your project and handle the full installation process professionally. This includes gas line connection, venting configuration, recirculation system setup, water line integration, commissioning, and final performance testing to ensure safe and efficient operation.
Already have a Navien NHW-160AI installed? We also provide ongoing maintenance and repair services, including system diagnostics, troubleshooting, flushing, descaling, burner inspection, component replacement, and preventative maintenance to keep your unit operating efficiently and reliably year-round.
If your system is experiencing issues such as inconsistent hot water, ignition faults, pressure fluctuations, error codes, or reduced performance, our experienced technicians can quickly identify the problem and offer the most cost-effective repair solution.
From complete installation projects to emergency repairs and scheduled maintenance, Pacific Blue Mechanical delivers trusted workmanship and reliable hot water solutions designed for long-term comfort and efficiency.
The Navien NHW-160AI Premium Non-Condensing Tankless Water Heater is a premium indoor non-condensing tankless water heater designed for residential hot water production.
Yes. It comes with a built-in recirculation pump and buffer tank for faster hot water delivery.
Yes. The unit is available for natural gas (NG) and propane (LP) installations.
Yes. The NHW-160AI is cascading capable for higher demand applications.
Yes. It features low NOx emissions rated at 20ppm for improved environmental performance.
