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Home » Authors » John Siegenthaler, PE

Articles by John Siegenthaler, PE

Figure 2: A German “energy meter.”

Energy and Power Are not the Same Thing

True Professionals Use Clear Definitions and the Proper Terminology
Headshot siegmugshtnew
John Siegenthaler, PE
July 8, 2013
No Comments

When it comes to the difference between energy and power, our industry tends to get sloppy with its terminology. 


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John Siegenthaler

Future-Proofing Hydronic Systems

Low Water Temperatures are the Key
Headshot siegmugshtnew
John Siegenthaler, PE
May 13, 2013
No Comments

A tradeoff has always existed between the water temperature at which hydronic heat emitters are sized and their cost. The higher the supply water temperature assumed by the designer, the smaller the required heat emitters and the lower their installed cost. 


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Figure 1 Feature

Geo Semantics: Heat Pumps Are Renewable Energy Sources

Headshot siegmugshtnew
John Siegenthaler, PE
February 25, 2013
No Comments

While I agree that heat pumps do move heat from one location to another, I strongly disagree with the premise that air-source and geothermal heat pumps are not renewable-energy heat sources. 


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Sidearm Heaters

Revamping Sidearm Water Heaters

Headshot siegmugshtnew
John Siegenthaler, PE
June 18, 2012
No Comments
Sidearm water heaters were developed decades ago so that boilers could provide both space heating and domestic hot water. Is there an application they can be used for today?


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John Siegenthaler, PE

Solutions for Outdoor Wood-fired Furnaces

Headshot siegmugshtnew
John Siegenthaler, PE
March 12, 2012
No Comments
Interest in wood-fired hydronic heating systems continues to rise along with the price of conventional fuel. What kind of solutions are available and how do you handle them?


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