Water Heater, Tankless, Gas Connection (In.) 3/4 MNPT, Gas Type LP, Input (BTU) 180, 000, Ignition Type Direct Electronic, Energy Factor 0.82, Depth (In.) 9.6, Width (In.) 14.0, Height (In.) 22.9, Water Connection (In.) 3/4 MNPT, 6.6 GPM @ 45F Rise, 3.3 GPM @ 90F Rise, Includes Isolation Valves, Controller and Wall Bracket