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Articles by John Siegenthaler, P.E.

Header Perfection

August 1, 2009
When it comes to hydronic headers, short and fat is good!
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The Ultimate Gas-Fired Heat Source

July 1, 2009
A critical notion if hydronic technology is to maintain a leading role in residential construction.
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The Evolution Of A Heating System

June 2, 2009
Was my heating system ‘green’ 29 years ago? Judge for yourself…
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Perception Vs. Reality

May 1, 2009
Will the real green energy systems please step forward?  
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Fun With A FLIR

April 1, 2009
Infrared thermography reveals heat transfer in action.
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Variations On Residential Solar Water Heating

March 1, 2009
Learn about closed loop/antifreeze-based systems.
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Lucky Or Liar

March 1, 2009
Tales of  ‘inexplicably great performance’ that defy the laws of physics.
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February 1, 2009
Putting shapes and numbers together.
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Why Gray Is Green

January 1, 2009
A classic boiler metal stands ready for the future.
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Side-By-Side Vs. End-To-End

December 1, 2008
The choice of piping system can make a significant difference in operating cost.
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BNP Media's Plumbing Group Visits Grundfos North American Headquarters

BNP Media’s Plumbing Group, comprised of the Plumbing & Mechanical, Supply House Times, PM Engineer (pme) and Reeves Journal brands, recently visited Grundfos’ new North American headquarters building in the western Chicago suburb of Downers Grove, Ill.


Plumbing and Mechanical

March 2014

2014 March

In the March issue of Plumbing & Mechanical, read about the 'living in place' movement and learn how to make your space stylish and comfortable. PM catches up with MCAA president Chuck Fell and spoke with him about his goals for the year. Also in this issue, see the top products of 2013, see who is the March Truck of the Month, and read the latest Tool Tips.
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Trade Associations

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The Plumbing and Mechanical Store

2014 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

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Truck of the Month

Truck of the month

Are you proud of how your service truck looks? Do the graphics give people whiplash as they drive by? Have your calls increased because people remember your truck — and your company name? If so, we’d like to see it, too! Click here to find out how your service truck could be chosen as PM's Truck of the Month.



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