Rheem ECO180XLN3-1 8.4 GPM Natural Gas Outdoor Tankless Water Heater RETAILS OVER $1100 ITEM IS OPEN BOX, CUSTOMER RETURN. LOOK LIKE IT WAS BARELY USED (IF EVER). FULLY TESTED WITH MULTIMETER, WATER CONNECTIONS, ETC! INCLUDES THERMOSTAT, CORD, FITTINGS AND MANUAL. WE GET MANY OF THESE UNITS AS RETURN ITEMS, CUSTOMERS SOMETIMES DECIDE IT IS NOT ADEQUATE FOR THEIR HOME. You'll have hot water when you need it when you install this Performance Plus 9.5 GPM Natural Gas Outdoor Tankless Water Heater. It is designed to supply enough hot water for up to three bathrooms at the same time. It features a remote digital thermostat. The compact size makes this a perfect option for smaller homes or condominiums. Outdoor, tankless gas water heaters require no additional venting 9.5 GPM tankless water heater at a 35 degree temperature rise can provide enough hot water to supply a three bathroom home Tankless gas water heaters heat water on demand, saving energy compared to many standard gas tank-type water heaters 0.81 uniform energy factor meets or exceeds minimum energy efficiency standards Remote digital display shows precise temperature setting and maintenance codes Commercial conversion kits available for commercial applications Ability to link two similar units together for high demand applications with the EZ-link cable (sold separately) Environmentally friendly ultra-low NOx burner meets SCAQMD rule 1146.2 requirements Hot start programming helps to minimize fluctuation in water temperature during periods of frequent on/off operation Installs outside for easy replacement of your existing outdoor unit and frees up space inside