Modeled after Victorian-era steamboats, the Riverboat Twilight (Twilight) offers one- and two-day cruises on the upper Mississippi River. With design and engineering support from Meier Electric, the Twilight replaced its 36-ton chiller with Zoned Comfort Solutions® from Mitsubishi Electric. The combination of ductless and ducted Mitsubishi Electric units reduced hundreds of comfort complaints per year down to zero. In addition to meeting the challenges of heating and cooling a vessel with large glass windows, the system’s EZ FIT® Recessed Ceiling Cassettes fit precisely into the riverboat’s existing ceiling joists, which eliminated the need for structural changes during installation.