Ventilation

Duct Dynasty: Duct Sealing Side Effects You Need to Know

Take Caution When Sealing Up Undersized or Oversized Equipment

Is there a possibility that duct sealing could negatively affect an HVAC system? 


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MacroAir Technologies Inc.: High-velocity, Low-speed Fans

The AirVolution-D 370 offers blades from 6-12 feet and is ideal for ceiling heights as low as 12 feet.


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June 30, 2014: Greenheck to Build Innovation Center and Education Center

Centers Will Provide New R&D Facility and New Educational Training Site

Greenheck has announced that it will be building two new facilities on its Schofield, Wisconsin, campus, the Robert C. Greenheck Innovation Center and the Bernard A. Greenheck Education Center, to honor its founders.


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Rinnai Corp.: Vent-Free Fan Convectors

The Vent-Free Fan Convectors are available in 10,000- and 24,000-Btu models and operate without vents or ductwork, making them suitable for room additions, basements, or sunrooms. 


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Berner Intl. Corp.: Single-Length Air Curtains

Single-length 7-, 8-, 9-, and 10-foot-long models have been added to the ANSI/NSF 37-certified E-Zone and K-Zone (EZN and KZN Series) air curtains. 


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Tjernlund Products Inc.: Rooftop Chimney Fan

RT-Series Inducers are designed to solve draft problems and are available with an optional Constant Operating Pressure Control (COP). 


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Dynalloy Inc.: Automated HVAC Vents

The Cue Vent™ automates retrofitted standard HVAC registers by automatically changing the direction of the airflow with no motors, batteries, or electricity, using only a dynamic alloy wire that is temperature activated by the heater or air conditioner. 


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Armacell LLC: Fiber-Free Elastomeric Duct Liner

Created specifically for spiral ducts, AP Spiralflex™ is a 100 percent fiber-free, elastomeric duct liner. 


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Duct Dynasty: The Building Side of the Duct System

Considering Airflow Outside of Sheet Metal

If you’re reading this article in a building that has a forced-air HVAC system in it, you’re sitting inside the duct system right now.


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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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2014 World Energy Engineering Congress

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

Podcasts

NEWSMakers: Jim Johnson

Jim Johnson,an experienced trade school and community college instructor, discusses the HVAC industry and his column in The NEWS, ‘The Service Ticket.’ Listen now for a hint to the Not Enough Heat question from the Dec. 15 issue. Posted Jan. 30.

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ACHRNEWS

NEWS 01-26-15 cover

2015 January 26

Check out the weekly edition of The NEWS today!

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Regional Standards

With regional standards for a/c equipment going into effect in 2015, how do you think it will impact the industry?
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HVACR INDUSTRY STORE

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2015 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

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