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Home » Topics » Plumbing & Mechanical Contractor » John Siegenthaler: Hydronics Workshop

John Siegenthaler: Hydronics Workshop
John Siegenthaler: Hydronics Workshop RSS Feed RSS

Parsing a number

Differences exist between rules of thumb and precise calculations.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
September 20, 2013

 

Differences exist between rules of thumb and precise calculations.


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Nature vs. math

Formulas and assumptions don’t always predict what happens.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
August 22, 2013

 The following formula has been around the North American hydronics industry for a long time:  


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Trade-offs in boilers

Two boiler characteristics that need to make a comeback.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
July 18, 2013

 North American hydronic professionals can now choose from dozens of modulating/condensing (mod/con) boilers. Many are designed for wall-mounting. Those who design these boilers strive for small enclosures and low weight.  


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The basics of radiant ceiling cooling

No drips allowed.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
June 25, 2013

 For decades, well-designed and -installed hydronic heating systems have earned a reputation for superior comfort. Still, potential customers who understand and desire the benefits of hydronic heating often ask, “But how does this system provide cooling?”  


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Biomass heating systems can use both big and little tanks

How they can work together in a wood-fired heating system.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
May 29, 2013

 

Interest in biomass heating systems continues to rise, especially in rural areas of the United States and Canada. Although plenty of devices are available that burn wood to heat water, the state-of-the-art device is a wood-gasification boiler.


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Smoke Gets in your Eyes

It’s time to do wood-fired heating right.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
April 19, 2013
Every August, I make a short trip to a local event call the Woodsmen’s Field Days. This gathering is all about cutting down trees and then slicing them up into either firewood or lumber.
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Future-Proof Hydronic Systems

Low water temperatures are the key.
March 15, 2013
A tradeoff has always existed between the water temperature at which hydronic heat emitters are sized and their cost.
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Energy and Power

They're not the same thing
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
February 13, 2013
Most of you reading this column consider yourselves heating professionals.
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Heat pumps are renewable energy heat sources

John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
January 15, 2013
I recently read an Internet posting asserting that heat pumps, both air-source and geothermal, should not be considered renewable energy heat sources.


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Do this, do that

John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
December 1, 2012
A new piping concept and control wiring challenge.  
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