Reliance Tankless Water Heater, 3/4 in Inlet, Propane, 120,000 Btu BTU, Ignition Type: Electric, 6.6 gpm, 15 to150 psi, Energy Efficiency: 0.93, Vent Type: ABS, CPVC, PP, PVC, SS, Dimensions: 13-7/8 in W x 10-13/16 in D x 22-7/8 in H, Includes: Advanced Diagnostics and Factory-Installed Power Cord, Built-in Temperature Controller