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The Navien Tankless Water Heater Model NPE-240S is a high-efficiency water heater designed to provide endless hot water to your home. This powerful unit can deliver up to 6.5 gallons per minute of hot water, making it perfect for larger households or homes with high hot water demands.

Energy Efficiency

The NPE-240S is ENERGY STAR certified and has an impressive 0.97 energy factor, making it one of the most energy-efficient tankless water heaters on the market. Its advanced condensing technology captures heat from exhaust gases and uses it to preheat incoming cold water, resulting in lower energy consumption and cost savings over time.

Design and Features

The NPE-240S features a sleek, compact design that can be wall-mounted for space-saving installation. It also features an easy-to-use digital display that allows you to control and monitor the unit's performance, as well as diagnose any issues that may arise.

This tankless water heater also comes equipped with a variety of advanced features, including a built-in recirculation pump that ensures hot water is always available when you need it, and a dual stainless-steel heat exchanger that resists corrosion and provides longer lifespan.

Installation and Maintenance

Installation of the NPE-240S is straightforward and can be done by a professional plumber or HVAC technician. This unit also features easy-access components for simplified maintenance and service.


If you're looking for a reliable, high-efficiency tankless water heater that can provide endless hot water to your home, the Navien Tankless Water Heater Model NPE-240S is an excellent choice. Its advanced condensing technology, sleek design, and advanced features make it one of the best tankless water heaters on the market today


10 Years on Unit

10 Years on parts

1 Year on Labor


Tankless water heater before.JPG


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