Articles by Jim Bergmann

Making Service Profitable With the Right Tools, Part 2

Part 1 of this series discussed methods to significantly reduce recovery times and brazing techniques to significantly reduce the time required for evacuation. This article covers system commissioning, including tools and techniques that reduce the time required for pressure testing, evacuation, setting airflow, charging, and performance testing.
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The Case for Owning a Thermal Imager

“Dang it! Not again,” you are thinking, turning into the Water Berry Crest development for the sixth time this month. You cannot help but wonder what you are missing. You pull out your BlackBerry and dial up Steve, your buddy who is an electrician, and ask him about using his thermal imager.
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Measuring System Performance Digitally

The impact of HVAC is so significant, that it is leading utilities, building scientists, and others into the realm of HVAC system performance evaluation. Contractors that cannot measure system performance may find themselves at odds with these communities. Simply put: HVAC performance testing is quickly becoming a necessity.
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The Digital Dilemma

If we are going to fix the problems we have in this industry, we really shouldn’t use the same tools we used to create them. Analog gauges have brought us to this point, and will keep us here if we let them. Simply, analog gauges cannot do the job as evidenced by the success we have had using them.
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New Furnaces Need Love Too

There is still a lot of mechanical satisfaction to be had from maintaining and fine-tuning today’s gas appliances. As an example, in part one (Jan. 15), I described a service contract call for one particular customer, a retired English teacher named Mrs. Johnson.
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2015 ACCA Conference

Images from the 2015 ACCA Conference in Grapevine, Texas. Posted on April 8, 2015.

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NEWSMakers: Leslie McDowell

Leslie McDowell, director of communications at the Building Performance Institute Inc., discusses the nonprofit organization's new homeowner centric website. Posted on April 10.

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2015 April 13

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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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