RHE1163 Features: * Universal commercial water heater - natural gas * Full port and flow brass drain valve * Small jacket diameters * Short floor-to-vent heights * Hand-hole cleanout * Proprietary steel formulation * Patented multi-flue design * Two coats of high temperature porcelain enamel to maximize corrosion resistance * Low profile automatic flue damper * Spark-to-pilot ignition system * System sentinel LED diagnostic system * 180 degree max operating temperature * Energy saver * Energy efficient * ANSI Z21.10.3. certified * ASHRAE standard certified * CSA certified * North Carolina Code compliant Construction: * Burners construction: Stainless steel Specifications: * Output power: 199 BTU/hr Dimensions: * Overall dimensions: 76.312"" H x 26.25"" W x NULL"" D Collection: * Professional collection Warranty: * Manufacturer provides three years tank and one year parts warranty