Reliance 0 Gal 160000 BTU Natural Gas Tankless Water Heater

15 year warranty heat exchanger, 5 year warranty parts, 97% UED recovery efficiency, .94 Uniform Energy Factor (UEF), condensing indoor model, meets California Ultra Low NOx emission rules, requires 3/4″ gas line,150 psi Pressure only relief valve not included-purchased separately, recommend ordering isolation valve kit that includes the 150 psi pressure only valve, and two service valves, which makes required periodic maintenance easier, order Ace 4699856 separately, requires 120 volt power supply, warranty will not cover damage caused by water quality, Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvementNot for Mobile – Manufactured Homes InstallBuilt-in temperature controller and diagnosticsCondensing model for indoors only.160000 Input BTU Maximum, 13000 Input BTU Minimum.Maximum 6.6 GPM, 6.6 GPM at 45 degreeF temp. rise, 4.3 GPM at 70 degreeF temp. rise.May qualify for local tax credit or rebateAll descriptions, images, references, features, content, specifications, and product described or depicted are subject to change at any time without notice.INDOOR Install onlyNot for Mobile – Manufactured Homes InstallStated Warranty time period applies only to original owner and when installed in full accordance to installation manual application