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Home » Authors » John Siegenthaler, P.E.

Articles by John Siegenthaler, P.E.

PM0919_TheGlitch.jpg

The Glitch and Fix: Overly complex

John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
September 23, 2019

An installer was asked to include an air-to-water heat pump into a low-temperature radiant panel heating system supplied by a mod/con boiler.


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eBook Vol 4.jpg
Sponsored Content

Modern Hydronics Done Right Volume 4

eBook
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
September 13, 2019

We are proud to present the fourth of five eBooks specifically for the hydronics market. Brought to you by Plumbing & Mechanical, PM Engineer and Supply House Times, this FREE eBook is a collection of columns and articles from John Siegenthaler, a well-respected hydronics expert.


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John Siegenthaler: Bidirectional Btu

The flexibility of hydronic systems.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
September 6, 2019

Over the years, our office has received requests for design assistance for systems involving two hydronic heat sources, each in different buildings, where the expectation is to have either heat source supply heat to either building.


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John Siegenthaler: Put it on my tab

Btu meeting will open many new market opportunities.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
August 6, 2019

Apartments and condominiums provide homes to families with different comfort preferences and different attitudes on energy use.


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John Siegenthaler: Renewable Heating Design

John Siegenthaler: Be explicit on tubing depth in a slab

Unnecessary compromise
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
July 11, 2019

A commonality among all renewable energy heat sources is that they perform best when coupled to low-temperature hydronic distribution systems. 


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John Siegenthaler: Hydronics hygiene

Clean your systems during commissioning.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
July 9, 2019

Water is the “life-blood” of hydronic systems. Its chemical characteristics can make the difference between a system that lasts for decades versus one that develops expensive corrosion issues within months of commissioning.


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John Siegenthaler: Picking winners

Are geothermal heat pumps economically sustainable in an unsubsidized market?
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
June 10, 2019

The U.S. geothermal heat pump industry was breaking out the champagne on Feb. 9, 2018.  That’s the day President Donald Trump signed the Bipartisan Budget Act of 2018, a bill that boosted government spending by hundreds of billions of dollars.


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Modern Hydronics Done Right Volume 3
Sponsored Content

Modern Hydronics Done Right Volume 3

eBook
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
June 6, 2019

We are proud to present the third of five eBooks specifically for the hydronics and radiant heating/cooling market. Brought to you by Plumbing & Mechanical, PM Engineer and Supply House Times, this eBook is a collection of columns and articles from John Siegenthaler, P.E., a well-respected hydronics expert and longtime columnist for PM, pme and Supply House Times.


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the fix

The Glitch: Thermal bullying

John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
May 21, 2019

A contractor is asked to design a hydronic heating system for a modest, super-insulated house in a cold Northern climate. The home’s design load is only 18,000 Btu/h. The owners are planning to install a 12 KW solar photovoltaic electrical system.


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John Siegenthaler: Btus in a box

There’s more to comfort than balanced energy flows.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
May 10, 2019

Have you noticed the strong interest in cold-climate air-source heat pumps over the last couple of years?


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