- ENERGY STAR® certified power direct vent design delivers up to 0.86 Uniform Energy Factor (96% Thermal Efficiency)
- Delivers 150-gallon first hour rating
- AiQ - Adaptive Gas Technology allows you to select Natural Gas or Liquid Propane during installation
- Advanced high efficiency condensing design delivers energy savings & continuous hot water at a constant flow of over 4 gallons per minute
- Helical coil internal heat exchanger lengthens heat transfer cycle and reduces lime & scale build-up to maintain high efficiency operation
- Power direct vent design installs with 2" or 3" PVC, CPVC or polypropylene pipe terminating through outside wall
- Top fired Ultra-Low NOX gas burner, meets or exceeds emission requirements in California & Utah
- Push-button piezo ignitor makes lighting pilot fast & easy
- Protected by a CoreGard™ anode rod, Blue Diamond® glass lining and DynaClean™ automatic sediment-cleaning system for long life
- 8-year limited tank and parts warranty
The ProLine XE® Nautilus™ Power Direct Vent Residential Gas Water Heaters are designed to meet the growing demands of modern households while delivering exceptional performance and efficiency. With a 0.86 Uniform Energy Factor (UEF) and 96% thermal efficiency, these water heaters provide significant savings on energy costs while delivering hot water at flow rates up to 4.31 gallons per minute. The advanced condensing design with a spiral heat exchanger maximizes heat transfer and minimizes energy waste. Whether you need hot water for back-to-back showers or combination space heating applications, the Nautilus™ is built to deliver reliable, high-capacity performance.
Equipped with AiQ™ Adaptive Gas Control system, the Nautilus™ water heaters offer unparalleled convenience and adaptability. The smart combustion system adjusts to varying fuel qualities and can operate on natural gas or liquid propane, for optimal performance in any setting. The ultra-low NOx burner complies with strict air quality standards, while the durable Blue Diamond® glass coating provides superior corrosion resistance for long-lasting durability. Certified to meet rigorous safety and efficiency standards, the Nautilus™ is the perfect blend of innovation, reliability, and sustainability for today’s energy-conscious homeowners.
