75,000 BTU High-Static Separated Combustion Natural Gas Unit Heater, Voltage:115, Hertz:60, Phase:1, Airflow:Horizontal, Efficiency:82, Cfm:759-1265, Ignition:Multi-Try Direct Spark Ignition, Gas Connection:1/2"Mpt, Flue Size:4", BTU Input/Output:75,000/61,500, Mounting:Suspended Within The Space, Dimensions:17-7/8"H X 26-5/8"W X 36-1/8"D, Weight:100 Lbs, In Mfg Box, Origin:Mexico.