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Articles by John Siegenthaler, P.E.

Microflows<br>John Siegenthaler

February 1, 2007
Heating a 2,500-square-foot house with a 40-watt circulator.
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Take The High Road<br>John Siegenthaler, P.E.

January 23, 2007
Some advice for aspiring hydronic heating professionals.
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Two Certainties

December 1, 2006
Hydronic systems, like nature, want balance.
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Fewer Bridges To Cross<br>John Siegenthaler

November 1, 2006
Alternatives to parallel primary loops.
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Heating A 'Thermos Bottle' House<br>John Siegenthaler

October 1, 2006
Full-coverage radiant floors may not be the best choice.
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Disappearing Btus<br>John Siegenthaler, PE

September 1, 2006
The boiler isn't the only source of heat in many hydronic systems.
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Picturing ∆P<br>John Siegenthaler, PE

August 1, 2006
Visualizing pressure differences is key to proper hydronic design.
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Thermal Equilibrium<br>John Siegenthaler, PE

July 1, 2006
Achieving a balance between heat emitter area and supply water temperature.
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NEW!!<br>The Glitch & The Fix -- June 2006

June 1, 2006
Learn to design more efficiently by troubleshooting the following hydronic schematic. The answer to this "glitch" can be found in PM's twice-montly e-newsletter Radiant & Hydronics e-News. Sign up for free here.
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Backward Thinking

June 1, 2006
What happens when flow reverses in primary/secondary systems?
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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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2014 National Plumbing & HVAC Estimator

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

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