Description
Please note: this is the US version of this product, designed for US 120V / 60Hz mains power (including any charger supplied) with a US plug. To use it in the UK you will need a suitable step-down voltage transformer, not just a plug adapter. Manufacturer warranty terms may differ for US-version products.
Please note: this is the US version of this product, supplied with US gas fittings. A UK-compatible regulator and hose are needed to use it with UK propane or butane bottles, and we recommend having the connection checked by a Gas Safe registered engineer. Manufacturer warranty terms may differ for US-version products.
Never run out of hot water again. The Navien NPE-180S2 Condensing Tankless Water Heater heats water on demand, saving space and energy compared with a tank water heater.
Navien NPE-180S2 – Condensing Tankless Water Heater – 150,000 BTU
The Navien NPE-180S2 is a high-efficiency condensing tankless water heater built to provide continuous hot water for residential homes. It supports flow rates up to 8.4 gallons (31.8 L) per minute at a 35°F (2°C) rise, making it well-suited for homes with multiple bathrooms or simultaneous hot water needs.
Engineered with dual stainless steel heat exchangers for enhanced durability and ultra condensing performance, the NPE-180S2 is designed for indoor or outdoor wall-hung installation. It includes the EZNavTM multi-line control panel with integrated HotButtonTM control and supports cascading with up to 32 units using Navien’s Ready-Link system. Approved for direct venting, it supports 2″ (5.1 cm) venting up to 60 feet (18.3 m) and 1/2″ gas line capability up to 24 feet (7.3 m), offering flexible, space-saving installation options.
Features
- Up to 150,000 BTU/h input capacity
- Flow rate: 8.4 GPM at 35°F (2°C) rise
- Dual stainless steel heat exchangers
- Ultra condensing efficiency
- Low NOx emissions (20 ppm)
- Field convertible gas system (NG/LP)
- Indoor or outdoor wall-hung installation
- EZNavTM control panel with HotButtonTM
- Cascading capable with up to 32 units via Ready-Link
- Direct venting: 2″ (5.1 cm) PVC up to 60 feet (18.3 m)
- 1/2″ gas pipe capable up to 24 feet (7.3 m)
- Gas connection: 3/4″ NPT
- Water connections: 3/4″ hot and cold
- 120V, single phase operation
Applications
- Residential homes with high hot water demand
- Multi-bathroom households
- Compact installations needing wall-hung systems
- Projects requiring venting and gas line flexibility
- Multi-unit cascade setups for greater capacity
Product Includes
- 1 – Wall Mounting Bracket
- 4 – Tapping Screw and Anchor
- 2 – Vent Terminator
- 4 – Wall Flanges
PNAV000021
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