MAXAIRe X13 ECM Blower Motor Energy savings temperature control MODEL NUMBER AMXMAX30e AMXMAX50e AMXMAX70e AMXMAX100e CAPACITY @ 160F 32,159 BTU 44,700 BTU 58,902 BTU 80,666 BTU Plenum Size 8” 8” 8” 10” SIZE W x D x H 14 x 18.5 x 30 14 x 18.5 x 30 18 x 19.5 x 36 18 x 25.5 x 36