SPECIFICATIONS Fan size Speed lots Amps Wa RPM CFM N.W. G.W. CF Low 0.31 13.58 73 1973 ; : 8.16 kgs 9.30 kgs 52 in. Medium 120 0.42 36.62 131 3652 | (18.001bs) | (20.50 Ibs) 1.8 cu. ft. High 0.52 62.