NAVIEN NPE180A2-NG TANKLESS WATER HEATER 150K BTU W/ PUMP (NPE-A)

Navien NPE180A2‑NG Tankless Water Heater – 150K BTU with Recirculation Pump

The Navien NPE180A2‑NG is a premium, ultra-efficient condensing tankless water heater providing 150,000 BTU/h output and houses an integrated recirculation pump. Perfect for busy homes or small commercial spaces that require reliable hot water delivery and energy savings.

At a Glance

• 150,000 BTU Heat Output – Ideal for mid-to-large residential use
• Flow Rate: Up to 9.8 GPM @ 35°F rise
• Built-In Recirc Pump – Faster hot water delivery, reduced waste
• Wall-Mounted, Space-Saving Design – Compact footprint
• Field Convertible: Natural Gas to Propane (conversion kit included)

Features & Benefits

• Dual stainless steel condensing heat exchangers for high durability and 0.95 UEF efficiency
• Smart EZNav digital control with intuitive diagnostics
• Cascading capable – link up to 12 units for larger applications
• Low NOx emissions (<20 ppm) meet environmental standards
• Compatible with 2" or 3" PVC/CPVC/PP/SS venting options
• 0" clearance to combustibles supports flexible installation
• Certified for outdoor use in conjunction with Navien vent kit

Included Accessories

• (1) Navien NPE180A2 unit
• (1) Gas conversion kit (NG ↔ LP)
• Wall bracket, mounting hardware, vent termination cap(s)

Performance & Specifications

• UEF: 0.95
• Flow: 9.8 GPM @ 35°F rise, 7.5 GPM @ 45°F rise
• Min flow rate: 0.5 GPM (0.01 GPM with optional setting)
• Gas pressure: NG 3.5″–10.5″ WC, LP 8″–13″ WC
• Water pressure: 15–150 PSI
• Power: 120 VAC, 60 Hz – 200 W typical

Safety & Monitoring

• Flame rod, air pressure switch, high-limit sensors, exhaust temp sensor
• Built-in surge and burner fuses; Vent Installation Detector (VID)

Ideal Applications

• Homes with 2–4 bathrooms
• Small commercial sites: offices, salons, clinics
• Upgrade projects seeking energy efficiency and recirculation comfort

The Navien NPE180A2‑NG combines high performance, recirculation convenience, and advanced safety in a compact, wall-mounted design. Ideal for homeowners and installers seeking consistent hot water, energy savings, and reliable operation.