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Rooftop Units

Survey: 74 Percent of Contractors Unprepared for Efficiency Standards

Emerson Survey Shows Contractors Unaware of Pending Efficiency Ruling

Unlike the 2005 regulation changes, the 2015 changes will affect both residential and commercial efficiency standards.


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Johnson Controls: Commercial Rooftop Units

With an exact-fit replacement design, the Coleman© Peak rooftop units match the footprints and electrical and gas lines of other manufacturers’ units, said the company. 


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Thybar Corp.: Insulated Metal Building Curbs

According to the manufacturer, advanced laser technology offers the tightest tolerances and allows for a superior weld. 


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RTUs Cool More Space Using Less Energy

Some industry experts in the HVAC industry consider gas-fired condensing combustion heating systems to be the final frontier in rooftop heating technology.


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Johnson Controls: Commercial Rooftop Units

With an exact-fit replacement design, the York® Prestige™ rooftop units match the footprints and electrical and gas lines of other manufacturers’ units, said the company. 


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Thybar Corp.: Custom-Made Rooftop Unit Base

Bases for secure rooftop equipment mounting are quickly manufactured to precise specifications. 


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NEWS Panel Highlights Smartest Products

Contractor Board Shares Insight into the Most Intelligent Products They Install

We asked the contractors on our editorial advisory board to share which products they believe truly deserve to be called smart — and why.


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Lennox Commercial: Commercial Rooftop Units

For the 3- to 5-ton high-efficiency Energence® rooftop units, the SmartAirflow™ sensor-based system is available. 


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Converting Constant to Variable Volume

Variable-Volume Conversion Can Offer Significant Energy Savings

Converting a constant-volume RTU to variable volume can save anywhere between 20-50 percent in energy savings if done correctly. 


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Thybar Corp.: Rooftop Unit Curbs

Quickly manufactured to precise specifications, Filter Curbs offer additional filter capacity for rooftop units. The curbs feature all-welded construction, factory-insulated walls, integral filter rack, and access door for servicing filters.


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2014 SMACNA Annual Convention

Views from the 2014 SMACNA Annual Convention in San Antonio.

Podcasts

NEWSMakers: Chris Mathis

Chris Mathis, president of Mathis Consulting Co. and vice chair of ASHRAE’s residential ad hoc committee, talks about ASHRAE’s exploration into the residential market. Posted on Oct. 17.

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ACHRNEWS

NEWS 10-20-14 cover

2014 October 20

Check out the weekly edition of The NEWS today!

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EFFICIENCY STANDARDS

DOE has denied AHRI’s petition for reconsideration of walk-in standards. Is it getting harder to reach consensus on efficiency standards?
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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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