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Dirty Sock Syndrome: What It Is, How to Prevent It

Applying a Solution That Works
By Forrest Fencl
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In the 1970s, heat pumps were touted as the energy efficient HVAC systems of the future. New markets typically have new problems, and for heat pumps the nature of the problem related to odors. A particular foul smell was so prevalent that the moniker Dirty Sock Syndrome was coined and universally accepted.


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Biomass Boilers Offer a Cost-Effective Alternative, Says GSA

Testing Shows High Boiler Efficiency and Favorable Payback under Many Conditions
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Advances in pellet combustion and control automation have recently positioned wood-pellet-fired biomass boilers as economical alternatives to traditional boilers. Their targeted use promises distinct benefits to the U.S. General Services Administration (GSA).


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Are Your Customers Being Overbilled for Energy?

Look at the Energy Data and Help Them Save
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In every industry, companies are looking for ways to save on energy costs. This article provides a quick guide that examines several low-cost ways you can find energy savings for any facility. Among the savings areas, we’ll take a look at heating, lighting, electric motors, power factor correction, and more.


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Rise in Brownouts Creates Opportunity for HVAC Technicians

Study Shows Homeowners Understand the Risks, but Are Not Proactively Protecting Air Conditioners
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Only two out of ten (22 percent) of United States homeowners protect their major appliances, including air conditioners, from brownouts and other power quality issues despite the fact that nearly nine in ten (87 percent) understand that a brownout can damage these same major appliances, according to a new study.


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H&H Event Showcases Products, Offers Seminars

A Forum for Customers and Manufacturers to Learn from Each Other
By John Vastyan
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Mechanicsburg, Pennsylvania-based manufacturer’s rep firm, H&H Sales Associates Inc., recently held a “Customer Appreciation Day” product show and open house attended by hundreds of mechanical system installers and designers and consulting-specifying engineers.


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NREL Hosts Zero-Energy Home Competition

Students Presented Their Designs to Juries of National Experts
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The campus of the U.S. Department of Energy’s (DOE’s) National Renewable Energy Laboratory (NREL) played host to 28 teams of university students and building industry experts who converged at the lab for the Challenge Home Student Design Competition.


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Water-Cooled Technology Cuts Costs

Also Provides Reduction in Peak Demand
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This analysis shows how a water-cooled 500-ton chiller system when compared to a 500-ton air-cooled chiller system results in approximately $45,000 in annual operating costs savings. Additionally, the water-cooled system reduces peak energy demand by 45 percent.


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Optimizing Hotel Efficiency and Comfort

System Provides Intelligent Energy Management
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The challenge presented by Neema Hospitality, Mechanicsburg, Pennsylvania, was that the company wanted to maximize energy efficiency while maintaining guest comfort and loyalty, improve profitability without increasing room rates, and augment operational efficiency with remote monitoring capability.


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Hands-Free HVAC Troubleshooting and Diagnostics

System Approach Makes Troubleshooting Faster, Easier, and More Affordable
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Among the more stressful challenges facing HVAC service providers is meeting customer demands for rapid diagnosis and repair of their systems. For many HVAC contractors the solution can be found in a compact electronic measurement system that can monitor and log the status of all HVAC functions.


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Avionics Mil-Spec Part Solves Commercial HVAC Temperature Stability Problem

Part Maintains Setting and Avoids Repeat Service Calls
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Modifying an off-the-shelf control knob used in avionic systems stopped repeated service calls for a major maker of commercial rooftop units. Electronic Hardware Corp. (EHC) was able to change its standard PT70 control knob to fit on a small circuit board inside the different HVAC models.


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