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Church retrofit looks upward, finds an answer in fabric duct

April 1, 2011

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Fabric duct installation at this North Carolina church has reduced mold and saved space.It’s difficult to believe that a routine item such as HVAC ductwork could have as great affect

Having lived with an ancient heating system and no cooling for years, a Pennsylvania congregation now sings the praises of the updated hydronics and new mini-splits that brought a mechanical renaissance to the church’s various spaces.

IAQ: Florida's Teachable Moment

March 3, 2011

By Ernie MacFerran

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An engineer with the 9th-largest school district in the United States writes about the IAQ testing and final report that his district commissioned. From offices to classrooms to cafeterias and restrooms, the monitoring was extensive. Read the results and some author comments about acceptable IAQ in schools, the possibility of overdoing fresh air, and the associated costs.

Temporary HVAC: Homework Pays Off

March 3, 2011

By Mike Conklin

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School districts have known for quite some time that temporary equipment can assist in passing the tests of renovations or the pop quizzes of unexpected equipment failure. The lesser-known lesson is that having the plan in place can save significant time and money on top of the equipment’s basic benefits.

Fan, BAS spread a warm feeling to start Alaska schooldays

March 1, 2011

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A 12-ft diameter low-speed fan provides destratification to cut the morning temperature recovery for this elementary school down to 15 to 20 min.Designing a landmark school in the unforgiving Alaskan

LEED Platinum Performance for Mercy Corps

February 1, 2011

By Rob Schnare P.E., LEED

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Inside this nonprofit’s new headquarters in Portland, variable refrigerant flow teamed with zonal heat exchange, 100% DOAS, daylighting, CO₂ sensors, and more to deliver comfort while bringing actual energy usage in under the design target of $0.83 per year.

Practical Implementation Of Chilled Beams For Offices

January 1, 2011

By Peter Rumsey P.E., FASH and John Weale P.E., LEED

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The wave of acceptance for this design option continues to grow in North America. Get up to speed on when and where chilled beams can have the most impact. Then move into humidity control, supply air, system sizing differences compared to VAV, economizers, and more.

Best Bets On The Floor

January 1, 2011

By Compiled By ES' Staff

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When you stroll the AHR Expo floor this year, don’t leave things to chance. Nobody likes homework, but a little advance scouting out products of interest can save precious time in Las Vegas. We’ll wager something useful will catch your eye in our annual “show article.”

Building Automation: Alarms Lead To Reactive Operations

January 1, 2011

By Paul Ehrlich, P.E. and Ira Goldschmidt P.E.

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What might the crystal ball say about fault detection diagnostics?

Asheville resort digs deep to deliver dehumidification to underground spa patrons

December 1, 2010

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Multiple dehumidification units allowed for scheduled downtime while maintaining this underground spa’s precise humidity requirements.The Grove Park Inn Resort & Spa is nestled in the Blue Ridge Mountains of Asheville,

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