The Navien Tankless Water Heater 180K with Built-in Buffer Tank is a high-efficiency on-demand water heater that includes a built-in buffer tank to enhance performance and convenience. This model is designed for residential and light commercial applications where a combination of high capacity and a consistent hot water supply is required.

Key Features:

• Capacity: 180,000 BTUs provides substantial hot water output, making it suitable for larger homes or small commercial spaces with moderate to high hot water demands. Handles multiple fixtures simultaneously, including showers, sinks, and appliances.

• Built-In Buffer Tank: The built-in buffer tank is designed to store a small amount of hot water, which helps to reduce the wait time for hot water and maintains a steady supply, especially in situations where there are fluctuations in demand.

• Enhanced Performance: The buffer tank helps to minimize temperature fluctuations and ensures that hot water is available more quickly and consistently, enhancing overall comfort and convenience.

• High Efficiency: Features a condensing technology that captures and reuses heat from exhaust gases, leading to high energy efficiency and lower operating costs.

• Reduced Standby Losses: The buffer tank helps to reduce standby heat losses compared to traditional tank-style water heaters by keeping a small reserve of hot water ready for use.

• Space-Saving: Despite the built-in buffer tank, the unit maintains a compact, wall-mounted design that saves valuable floor space and allows for flexible installation.

• Durable Construction: Built with high-quality materials to ensure long-lasting reliability and performance.

• Smart Controls: Includes a sophisticated control system that allows for precise temperature adjustments, scheduling, and system diagnostics, providing ease of use and enhanced performance monitoring.

• User-Friendly Interface: Features an intuitive interface for easy temperature setting and operational management.

• Overheat Protection: Equipped with overheat protection to prevent excessive temperatures and ensure safe operation.

• Freeze Protection: Includes freeze protection to prevent damage in cold climates, ensuring reliable operation even in freezing conditions.

• Versatile Venting Options: Offers flexible venting options, including both concentric and twin-pipe configurations, suitable for various installation requirements.

• Indoor and Outdoor Installation: Can be installed indoors or outdoors, depending on the model and local regulations.