Archive Of Previous Articles By Gerry

Below are links to articles written by Gerry Wagner for industry related magazines. Renewable Energy is Making the Trades Sexy Again HeatSpring Magazine October 12, 2011 Is Geothermal Economically Viable? You Bet! New England Edition – HVAC Insider – July … Continue reading

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THE NEWS 2014 BEST TRAINER

Click here to read about Gerry in the 11/24/14 issue ACHR The News

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November / December 2014 ESPCO Newsletter

Mini splits in computer server rooms…good idea? I get asked a lot about one of the most common commercial applications of mini splits…computer server rooms. A common concern is the equipment’s ability, (or lack thereof), to cool the room at … Continue reading

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July / August 2014 ESPCO Newsletter

Did you know that New Orleans is built on a swamp? I was asked that question at a recent mini split class I conducted at my new friend’s, Tommy Flick, Flick Distributing Company, training facility in Harahan, LA. I think … Continue reading

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May / June 2014 ESPCO Newsletter

What is the definition of ‘critical charge’? The American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE), defines ‘critical charge’ as follows: “Refrigerant quantity required by a system to maximize performance when a capillary or fixed restriction expansion device … Continue reading

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January / February 2014 ESPCO Newsletter

Why is Commercial Water Source Heat Pump (CWSHP) technology the best kept secret in HVACR? I have been preparing for a two week tour of the Pacific coast which will include a couple ‘Introduction to Commercial Water Source Heat Pump … Continue reading

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November / December 2013 ESPCO Newsletter

New Videos There are a total of 29 videos now posted on the website. I debuted a ‘video series’ at the Heat Controller national sales meeting in Las Vegas this past October. The subject of the series is a singular … Continue reading

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ESPCO September / October 2013 Newsletter

The BEST heat gain / loss calculation software I have ever used! One of the reasons I write this newsletter is to inform you when I discover something really cool and / or something that makes my life in the … Continue reading

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ESPCO July / August Newsletter

A bunch of new videos posted on the website! I have been taking advantage of my time off the road this summer to create some new videos…many of which were inspired by comments from class attendees over the first half … Continue reading

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ESPCO May / June 2013 Newsletter

To drill or to trench?…that is the question In my ‘Introduction to Geothermal Heating & Cooling’ class I speak to the many options for the ‘Ground Heat Exchanger’, GHEX, and I wanted to take the conversation one step further. In … Continue reading

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ESPCO March / April 2013 Newsletter

Should the ‘counter day’ go the way of the dinosaurs? I have been meaning to write this article for years but I always figured someone else would get to it so I kept putting it off…well, no one did so … Continue reading

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