Ventilation

Furnace Standard Fans the Flames

DOE Rule Regulates Components for the First Time

Manufacturers will initially bear the brunt of this change, as they will need to redesign their furnace lines in order to comply with the new standard, which takes effect in 2019. 


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Berner Intl. Corp.: Electric Air Curtain Heater

The VTH electric heater combines a hemispherical heating element array with a mounting strategy at the blower inlet. 


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Duct Dynasty: Surface Temperatures; Customers’ Comfort

You Must Adequately Consider the Building Side of the System

One of the primary measurements customers use to gauge comfort is the room temperature shown on the thermostat. If the number falls within an acceptable temperature range, the individual should be comfortable, right? Not quite. Could there be other factors at play here that are influencing their comfort that you might be missing? 


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DuctSox Corp.: Fabric Duct Framework

Pull-Tight is a patent pending, value-engineered product utilizing a combination of tensioning baskets and internal hoops to support, streamline, and tension a fabric system.


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Hospitals Contemplate Airborne Infection

HVAC Upgrades Part of Overall Strategy to Eliminate IAQ Issues

According to the Centers for Disease Control and Prevention (CDC), health care-associated infections (HAIs) are a major cause of morbidity and mortality in the U.S. 


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Titus: Operating Room Diffuser

The Laminar Flow Diffuser for critical environments has been designed to comply with ASHRAE 170, offering important safeguards for surgical patients. 


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Leaky Ductwork Continues to Drain System Efficiency

Contractors, Manufacturers Share Tips and Tricks for Sealing Ductwork

As home-performance contracting continues to gain traction in the U.S., many HVAC professionals are taking a whole-house approach instead of simply fixing immediate HVAC problems.


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Finding Success in Duct Renovation

Thorough Testing, Customer Involvement Help Sell Duct System Repairs

Contractors adding duct renovation services to their repertoires can improve both the contractor’s bottom line as well as their reputation as a high-end HVAC contractor. 


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UV-C Shines a Light on System Health

Improved Technology, Dropping Prices Drive Adoption of UV-C Technology

Just as an infection can spread from one part of the body to another, so can contaminated air, which is why an increasing number of home and building owners are choosing to install UV products.


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Duct Dynasty: Does Proper Design Guarantee HVAC System Performance?

Test the Brakes Before Tossing Over the Keys to the Car

The revelation that many of these rules of thumb can get you into trouble, and also the need to comply with new code revisions, is accelerating the move toward using design software to meet industry standards.


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2014 World Energy Engineering Congress

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

Podcasts

NEWSMakers: Kari Arfstrom

Kari Arfstrom, executive director of the HVACR Workforce Development Foundation, talks about the upcoming HVACR & Mechanical Conference. Posted on Jan. 23.

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2015 January 26

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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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2015 National Plumbing & HVAC Estimator

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

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