5.Cut two (2) pieces of S-Cleat 8" long and one (1) piece 10-1/2" long.
6.Place the 8" long S-Cleats on the narrow sides of the opening in the duct, with the slots protruding down and out. Place the 10-1/2" long S-Cleat on the longer side, closest to the center of the duct, in the same way as the shorter S-Cleats.
7.Attach the L-shaped bracket with six (6) holes to the top/front of the humidifier, so that the vertical wall is toward the reservoir.
8.Adjust the water level. (See #8 in "How To Maintain a Skuttle Steam Humidifier", pg. 25.)
9.Slide the flanges of the reservoir into the S-Cleats until the mounting bracket comes in contact with the side of the duct.