Ventilation

Air Curtains Keep Milk Cold — Not Frosty

Air Curtains Help Neutralize Subfreezing Wisconsin Winters

Dairy farmer Hans Griesen was losing product and productivity due to freezing wintertime temperatures at his Madison, Wisconsin, milking parlor until he installed two air curtains.


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Greenheck Fan Corp.: Backward-Inclined Utility Fan

Powered by a Vari-Green® motor, Model SWD achieves the performance of the Model SWB belt-drive centrifugal utility fan, including higher operating efficiencies and higher-pressure capabilities. 


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NEWS Hosts Free Fan Engineering Webinar

Lau Industries' Michael Brendel to Host Online Event

The webinar offers HVAC equipment engineers a basic review of fan engineering from an energy perspective. 


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DuctSox Corp.: Oval-Shaped Fabric Duct

OvalSox™ fabric duct is designed for low-clearance HVAC ventilation in industrial and commercial building applications. 


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Knowledge is Power in HVAC Zoning

Education is Paving the Path to Zoning Prosperity

Zoning manufacturers are taking the initiative to make zoning an attractive option for contractors.


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Zoning Success Requires Time and Financial Commitment

Contractors Believe Zoning Market is Ripe

If done correctly, adding zoning services can be a worthwhile investment for HVAC contractors.


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Panasonic Eco Products Div.: Ventilation Fans

The WhisperGreen Select™ models are modular all-in-one fan and fan/LED light combination ventilation fans. 


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What Happened to Sick Building Syndrome?

SBS Has Faded from Headlines, But Is It Still a Problem?

SBS is far from being eradicated and is still a concern that many HVAC professionals grapple with every day.


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Duct Dynasty: Understanding the Coanda Effect

Considering the Traffic of Airflow Within a Duct System

The Coanda Effect is named in honor of Henri Coanda, a Romanian aerodynamics pioneer and aircraft inventor. This phenomenon is sometimes referred to as the surface effect.


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ebm-papst Inc.: Centrifugal Fan

As part of a complete line, RadiPac EC centrifugal fans from 250-1,250 mm are available in a variety of support bracket and cube designs. 


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2014 World Energy Engineering Congress

Scenes from the 2014 World Energy Engineering Congress in Washington, D.C.

Podcasts

NEWSMakers: Ed Purvis

Emerson Climate Technologies executive president and business leader Ed Purvis discusses HVACR industry trends, the strength of the industry, and Emerson’s new innovation center. Posted on Dec. 26.

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2014 December 22

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2015 National Plumbing & HVAC Estimator

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