Tankless Water Heater, Tankless Natural Gas Water Heater - proTOUGH, Residential, Indoor, 11000 to 199900 BTU, 0.5 to 9.8 GPM Flow Rate

Lead Free; Two Identical Units Can be Linked Together by Using the Optional Quick Connect Cord for Twice the Hot Water Capacity; Tankless Water Heaters Heat Water Only When Needed, Eliminating the Wasteful Energy Use of Reheating Stored Hot Water, Which is Standard with Tank-Type Water Heaters; 12 Year Limited (Heat Exchanger), 5 Year Limited (Parts), 1 Year Limited (Labor) Warranty

Tankless Water Heater; Type Residential, Indoor; Inlet/Outlet Connection 3/4" x 3/4"; Gas Type Natural; Relief Valve Details Pressure Relief Valve Supplied; Venting Type Concentric Direct; Draft Hood Outlet/Vent Size 4" Diameter; Electrical Input Supply Rating 120 Volt AC at 60 Hertz; Gas Input Supply Rating 12000 to 199900 BTU/HR; Temperature Rating 100 to 180 Deg F; Tank Dimensions 13.8" Width x 9.4" Depth x 23.6" Height; Tank Height Including Draft Hood 26.4"; Tank Material Polyester Coated Steel; Tank Capacity 0.2 Gallon; Efficiency Rating Thermal; Ignition Type Direct Electronic; Energy Saver Conformance Yes; Options Freeze Protection Kit, Outdoor Vent Cap, Recess Box, System Controller, Remote Controller Cord; Inclusions/Features Temperature Lockout, Copper Heat Exchanger, Quick Connect Cord, Temperature Control Remote Thermostat, High Limit Switch, Tapping Screw, OwnerÆ Guide, Warranty, Installation Manual, Flame Sensor, Overheat Prevention Device, Lightning Protection Device, Freeze Protection; Applicable Standard ANSI Z21.10.3/CSA 4.3, NSF, SCAQMD, AB1953, CSA, UPC; Gas Connection Size 3/4"; Energy Factor 0.82; Flow Rate 0.5 to 9.8 GPM; Efficiency 84 Percent; Pressure Rating 15 to 150 PSI; Warranty 12 Year Limited (Heat Exchanger), 5 Year Limited (Parts), 1 Year Limited (Labor)