TNKLS NG WATER HEATER

Natural gas tankless water heater, maximum 140,000 BTU (British Thermal Unit) for 1 major appliance or 1 shower at a time. ENERGY STAR qualified. Indoor installation only. Scale reduction software, freeze protection, and multiple safety features. Weight 38 lbs.Unit requires category 3 stainless steel piping. Requires 3/4" gas line. Must vent independently. Direct vent conversion kits available.Optional vent kit. Energy factor: 0.82. 12 year limited warranty on heat exchanger. 5 year limited warranty on parts. Unit dimensions: 13.75" W x 7.75" D x 20.25" H.Tankless Water Heater Valve Set available, designed to simplify the installation, maintenance, and operation of tankless water heaters. Not approved for mobile/manufactured home installation.