Fred,
We ship our system in 3 boxes. The cyclone and blast gates ship in the largest box. The blower housing, impeller, hanging bracket, hardward and transition ship in the next box and the motor ships in it's own box. I can assemble the system and install it in about 2 hours, but I've done it several times. I would think that most people could do it in 4 -6 hrs depending on their skill level and how fimilar they are with our installation instructions page. To give you another idea about the time, in our photo galler there are pictures of Mark's Woodworking installation. He received his packages on Thursday afternoon and started his installation on Friday. On Sunday afternoon he sent me the pictures in the photo gallery.
Ed