Electric Tankless Water Heater Connection Location Plumbing Bottom Current 178 A Depth 13 1/2 in Height 24 in Width 30 in Elements Cartridge Style Designed for Field Replacement Non-Ferrous Features Emergency Stop Push Button Freeze Protection Fused Disconnect Non-Fused Disconnect Remote Display Siren and Beacon For Use With Emergency Drench Showers Eye/Face Wash Stations Heater Rating 218 377 BTU Includes NEMA 4 Cabinet Inlet Pipe Size 1 1/4 in Inlet Pipe Thread Type NPT