AO Smith 199,000 BTU Non-Condensing Ultra-Low NOx Outdoor Tankless Water Heater (NG/LP)

Overview: The 510U is well suited for residential/commercial applications such as small restaurants and beauty salons. It features a commercial grade copper heat exchanger with a thicker heat exchanger drum which is suitable for commercial applications or heavier-residential usages such as space heating or domestic recirculation systems. The design allows for a variety of installation options. Complies with Ultra-Low NOx regulations and meets the energy efficiency requirements of ASHRAE 90.1-b 1992. Easy-Link System capable up to 4 units. Multi-Link system capable up to 20 units. The ATO-510U tankless water heater uses up to 199,000 BTU/h of natural gas/liquid propane to deliver an endless supply of hot water for a 2.5 bath home in northern climates and up to a 4 bath home in southern climates (one shower head per bath). Specifications: Emissions: Ultra-Low NOx Maximum BTUs: 199,000 Minimum BTUs: 15,000 UEF: 0.81 Limited Heat Exchanger Warranty: 15 Years Limited Parts Warranty: 5 Years Water Connection Loc...