A.O. Smith Tankless Water Heater Condensing Ultra-Low NOx Indoor 199,000 BTU Propane

Overview Well suited for 3 bathrooms in moderate climates, or up to 4 bathrooms in warm climates. The ATI-540H-P tankless water heater uses up to 199,000 BTU/hr of liquid propane to ensure an uninterrupted supply of hot water for a 3 bath home in modern climates and up to a 4 bath home in warmer climates. Featuring two heat exchangers, one made of commercial-grade copper, which is stronger and more resilient to corrosion than standard copper; and the other exchanger made of stainless steel, providing additional protection against corrosion. Tech Specs Maximum BTUs: 199,000 Minimum BTUs: 13,000 Heat Exchanger: Commercial Grade Copper Secondary Heat Exchanger: Stainless Steel Voltage: 120V Water Connection Location: Bottom Water Connection Size: 3/4" Warranty: 5 Years / 15 Years  Details: Type: Space Saving Dimensions: Height: 23 5/8" Width: 17 3/4" Depth: 11 1/4 Product Weight: 59 lbs Energy Star: Yes LEED Rating: 1.5