The Impact of WEEE and RoHS on the U.S.

May 15, 2006
It's been demonstrated many times that after Europe introduces environmental regulation, similar action often occurs in the United States. This article explains WEEE and RoHS, and how they are already impacting the U.S. market.
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Variable Air Volume Systems

May 1, 2006
This article provides background information and general information on variable air volume (VAV) systems, and discusses improvements in today's VAV systems.
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Water Contamination and Removal in Ammonia Refrigeration Systems

April 17, 2006
Water contamination in an industrial ammonia refrigeration system can reduce system efficiency. A new automatic purger is described that can restore efficiency, cut electrical costs, and save money.
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Applying Fibrous Glass Duct Wrap

April 3, 2006
This article addresses the specific uses, performance characteristics, fire safety, condensation control, and installation recommendations for fibrous glass duct wrap.
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The Operative Bald Spot

March 20, 2006
A bald head enables you to immediately sense the smallest changes in air temperature or radiant heat transfer. The combination of the two is what defines "operative temperature" and the comfort equation that drives the radiant industry.
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Four Steps to Reduce HVAC Energy Cost

March 6, 2006
Many building operators do not repair or replace VFDs when they fail since motors can easily keep running through a bypass contactor. Continued operation in this mode quickly becomes a very expensive way to operate a fan.
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U.S. Navy Studies Oil-Free Compressor Technology

February 20, 2006
An ongoing study evaluating the performance of a new oil-free refrigeration compressor technology in a U.S. Navy facility in San Diego is showing promising results.
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Heat Transfer

February 6, 2006
Here is a quick reference on heat transfer. The equations are designed for quick and easy application in the field. They're intended for the technician who needs to determine if a system or component is performing in the desired range of operation.
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Blower Doors: The Next Most Important Contribution To HVAC

January 23, 2006
The benefits of blower door testing are multifold, and the contractors that have adopted its use are employing it in a variety of creative, valuable ways to strengthen the bottom line and improve quality of service to their customers.
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Current Fuel Cell Technology

January 9, 2006
Today, fuel cells are being developed to power commercial buildings, homes, passenger vehicles, and even small devices such as laptop computers. This article describes basic fuel cell components, highlights current fuel cell types, and discusses the technology challenges.
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2014 MCAA Annual Convention

Scenes from the 2014 MCAA Annual Convention in Scottsdale, Ariz.


Kyle Gargaro, editor-in-chief of The NEWS, hosted the 2014 ACCA CEO Forum. At the event, six well-known, highly respected company executives, Gary Michel, Ingersoll Rand/Trane; Chris Nelson, Carrier Corp.; Chris Peel, Rheem Mfg. Co.; Rod Rushing, Johnson Controls; Brent Schroeder, Emerson Climate Technologies; and Doug Young, Lennox; provided individual industry outlooks and fielded questions directly from attending contractors. Listen to the entire event on the NEWSMakers podcast. Posted on April 14.

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2014 National Plumbing & HVAC Estimator

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