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Articles by John Siegenthaler, P.E.

Stating the obvious

August 1, 2012
Some recent discoveries about ducting.
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Those other heat pumps, Part 1

July 1, 2012
Air-to-water heat pumps offer new opportunities for hydronic pros.
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Sidearm revamp

June 1, 2012
Updating an old approach using modern hardware.
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Beware of bottlenecks, Part 2

May 1, 2012
Sometimes the Btu just canít squeeze through.
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Beware of bottlenecks, Part 1

April 1, 2012
Too little flow causes too many complaints.
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Retrofits made easy

March 1, 2012
What’s often impossible with forced air becomes straightforward with hydronics.
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They're not boilers

February 1, 2012
Designing hydronic systems around outdoor wood-fired furnaces.
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Baseboard makeover

January 1, 2012
A modern approach to a traditional means of hydronic heating.
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Coil envy

December 1, 2011
Why don’t North American indirect tanks have larger heat exchangers?
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Transitions, Part 2

November 1, 2011
How to extract more heat from a storage tank.
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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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