Case History (Real-World Solutions)

New Vents Solve Old Problems


Spirovents helped solve many of the heating problems experienced by Carman Hall, the “problem child” of facilities at Eastern Illinois University.

After having tried numerous other methods, the first Spirovent was installed in Carman Hall at Eastern Illinois University (EIU) in Charleston, to deal with a long history of no heat calls and clogging valves. The very next season resulted in almost no calls or valve issues in this two-pipe high-rise residence hall. Since then, almost all residence halls have Spirovents installed as well as academic buildings and the central loop.

Carman Hall was considered the “problem child” by the campus maintenance staff. The students residing in the 30-year-old twin-tower high rise in the far southeast corner of the campus averaged two to three calls per day complaining about the lack of heat. The record, though, was more than 25 calls in one weekend. Carman Hall is heated using a two-pipe system that takes steam from the central plant and converts it to hot water.

The Spirovent, made by Spirotherm, Inc. employs the patented Spirotube® coalescing/barrier medium to scrub air and dirt from hot and chilled water systems with unprecedented efficiency. The air is released from the top of the unit via a patented air release mechanism, while the dirt falls to the bottom and collects in the dirt chamber where it can be blown down through a manual or automatic blow-down valve.

Because Spirovent units are so simple to install, there was no reason to hire a contractor, and the maintenance staff did the installation. EIU states that there has been a definite improvement in system performance since the Spirovent was installed.

The valve clogging problems have been virtually eliminated and the no-heat calls have all but disappeared. Rick Bagwell, the environmental control foreman at the time, remarks, “I’m very happy with the Spirovents and what they can do. I was skeptical at first because we’ve tried many things and none of them worked. Spirovents are the first that did.”

This article originally appeared in the issue of .