Takagi Takagi 6.60 GPM Residential Indoor Natural Gas Tankless Water Heater with 140,000 BTU Input and Concentric Venting from the Simplicity Series

Features:0.82 energy factor offers good power efficiencyCommercial grade heat exchanger is designed for the demands of the toughest jobsField convertible from natural gas to propane with included conversion kitConcentric venting design for easy roof or sidewall ventilationDesigned for indoor use onlyUltra-low NOx emissions compliantCertified for use in altitudes up to 10,100 ft15 year warranty on the heat exchanger, and 5 year warranty on all partsSpecifications:GPM: 6.60Max BTU Input: 140,000Wattage: 53...