Reprinted from January 1992 Insights Forty to sixty percent of the average commercial utility bill is for lighting. That bit of gloomy news for building owners is good news for companies that sell and install devices designed to control lighting and lighting costs. Thanks to the availability of a variety of lighting control options, contractors […]
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The Time is Ripe To Do Something About Multi-Zone Air Handlers
Written by Gil Avery, P.E. – Reprint from September 1991 Insights Multi-zone blow-through air handlers were popular 20 to 40 years ago when energy was cheap. Fortunately these units are not as popular today. Because they have so many negative qualities, they are prime for retrofit and offer a real opportunity to save lots of […]
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