Articles by John Siegenthaler, P.E.

Heating A 'Thermos Bottle' House<br>John Siegenthaler

By John Siegenthaler, P.E.
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Full-coverage radiant floors may not be the best choice.
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Disappearing Btus<br>John Siegenthaler, PE

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

By John Siegenthaler, P.E.
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Visualizing pressure differences is key to proper hydronic design.
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Thermal Equilibrium<br>John Siegenthaler, PE

By John Siegenthaler, P.E.
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Achieving a balance between heat emitter area and supply water temperature.
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NEW!!<br>The Glitch & The Fix -- June 2006

By John Siegenthaler, P.E.
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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

By John Siegenthaler, P.E.
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What happens when flow reverses in primary/secondary systems?
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Tanks Needed

By John Siegenthaler, P.E.
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Opportunities await if manufacturers will respond.
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A Burning Question

By John Siegenthaler, P.E.
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Are high-performance condensing boilers compatible with mixing devices?
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Ten Meltdown Strategies

By John Siegenthaler, P.E.
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Those who've worked within the hydronic radiant heating market in most areas of the county have probably been asked about the feasibility of snowmelting. Many hydronic professionals now offer it as a part of their repertoire. It's a natural extension of the skill set learned to design and install radiant heating systems.
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High Head Radiant

By John Siegenthaler, P.E.
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We've talked about the implications of long radiant floor circuits in the past. They do cut down on hardware, such as manifold connections. They also speed the installation. But what about thermal performance? Can the use of a “high head” circulator correct for the potential thermal degradation due to an extra long circuit?
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2014 August

2014 August

In the August issue of PM, read about the continued construction and renovations being made to hotels and restaurants. Find out the focus of this year's ISH China show will be, who made this month's Truck of the Month and read what Elkay has to say about their commercial construction expansion. Also, read the latest news and discover the newest products being used by professionals in the plumbing and mechanical industry.
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