Designed with cutting-edge technology, Noritz's new EZ Series Pro line brings even more features and bene?ts to optimize the user experience. Key features include an industry-leading .98 UEF rating, 25-year heat exchanger , single gas type with easy field conversion, Bluetooth® connectivity, and more - making Noritz's ?agship heaters the top tankless choice for reliable hot water delivery Features: Never run out of water again with a steady 11.1 GPM flow rate Available temperature settings range from 100 to 140°F (default setting of 120°F) Electric ignition ensures you never have to mess with a pilot light again This product is Energy Star certified with a Uniform Energy Factor of 0.98 Field convertible - parts are included for easy LP conversion Available in Direct Vent model that can use 2", 3" or 4" venting, can be installed outdoors with VC-6-1 vent cap Covered under 1 year labor, 25 year heat exchanger, and 5 year parts manufacturer warranties Product Technologies: Bluetooth® Capable: Easy startup procedures, remote control and diagnostics are all possible with the new Bluetooth connectivity. Effortlessly connect and manage your water heater with the EZ Start Plus App. Top Mount: Both new EZ models have their hot- and cold- water connections located on top of the unit — not the bottom, like most tankless heaters. This positioning allows the flexible water lines used by the previous tank heater to be quickly and easily reconnected to the new unit. Dual Stainless Steel Heat Exchanger: Inside each EZ model are two stainless steel heat exchangers that have a greater resistance to corrosion and scale buildup than other materials, thereby boosting system life PreMix Burner: Optimizes the perfect air/fuel ratio based on demand for better efficiency with less moving parts Steady BTU: Burner-control technology reduces the effective minimum input by more than 70 percent — to under 5,000 BTU per hour