Technical

Seasonal Start-ups: They're Not as Simple as You Think

April 22, 2013
The cooling season is upon us. Are your customers’ commercial HVAC systems up to the task? Now’s the time to conduct a seasonal start-up, to make sure you’re able to provide reliable, efficient cooling throughout the warmest months of the year.


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Polypropylene Pipe Helps Ease Elementary School’s Transition to Geothermal

School District Leverages Grant Money to Upgrade Heating System
April 8, 2013
The Park Orchard Elementary retrofit included replacing classroom heating systems. The Kent School District was awarded a $1 million-plus grant from the Office of the Superintendent of Public Instruction for project design enhancements including the installation of a ground-source heat pump system.


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How to Bid and Win Air Sealing Jobs

March 18, 2013
For HVAC contractors looking to increase sales, weatherization services like air sealing can be a natural extension of their businesses, offering many professionals a way to boost profits and reduce outsourcing. Bidding an air sealing job, however, can be an intimidating process. Here are a few easy steps to simplify the bidding process.


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Mohegan Sun Improves IAQ While Saving Energy

March 4, 2013
One aspect of Mohegan Sun’s green initiatives is to improve energy efficiency. The challenge is to find ways to maximize efficiency without sacrificing indoor environmental quality. One way that Mohegan Sun achieves this balance is by implementing a ventilation solution known as demand controlled ventilation or DCV.


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Energy Efficiency, Geothermal Heat Pumps, and ‘Negawatts’

The Lowest Cost Unit of Energy Is One That Is Not Used
February 18, 2013
A recent study by Ceres — “Practicing Risk-Aware Electricity Regulation: What Every State Regulator Needs to Know” — concluded that the least cost and least risk for future energy resources is energy efficiency. Indeed, the lowest cost unit of energy is one that is not used.


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The Need for Bearing Protection for Inverter-Duty Motors

February 4, 2013
All major manufacturers of three-phase ac induction motors offer “inverter-duty” or “inverter-ready” models, but while these motors have inverter-rated insulation to protect the windings, the bearings — their most vulnerable parts — are too often ignored. 


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Consultant Offers Top 10 Green Building Trends for 2013

January 21, 2013
Leading green building and sustainability consultant Jerry Yudelson has released his annual list of “Top 10 Megatrends” for the green building industry. Yudelson said, “It looks like a good year ahead for the green building industry.”


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Increasing the Lifespan and Reliability of Electrical Components

January 7, 2013
Heat is both a byproduct and one of the greatest enemies of electrical and electronic components. If not dissipated, this heat has the potential to cause early failures and malfunctions.


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Contractor Boosts Revenue with Mobile Work Order Management

December 17, 2012
Hank’s Plumbing of Calgary, Alberta, Canada, replaced paper forms with mobile software from Flowfinity Wireless Inc., Vancouver, British Columbia, on its field technicians’ smartphones to gain significantly improved management of time and materials.


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Smudging Around Air Distribution Diffusers

December 3, 2012
The problem of dirt collecting around ceiling diffusers has been a concern in the air distribution industry for a long time. Some people have asked about this dirt and the impact on indoor air quality (IAQ).


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2014 ACI Home Performance Conference

The 2014 ACI National Home Performance Conference & Trade Show was held in Detroit.

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NEWSMakers: Michael Willburn

Michael Willburn, president, Infloor Heating Systems, joins the program to discuss his company, radiant heating, industry trends, and whether contractors are becoming more interested in radiant heating. Posted on July 11.

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