John Siegenthaler, P.E.

John Siegenthaler: Flow x Pressure drop = Energy

Don’t waste it.

February 6, 2020

Ask a heating pro about the energy used by the systems they design or install.

John Siegenthaler: Mixed emitters

Use modern hydronic hardware to create a customized system.

John Siegenthaler, P.E.

January 7, 2020

One of the benefits of modern hydronic heating is the ability to use multiple types of heat emitters in the same system.

Modern Hydronics Done Right Volume 5

eBook

John Siegenthaler, P.E.

December 10, 2019

We are proud to present this fifth and final edition in the "Siggy" eBook series 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, P.E., a well-respected hydronics expert.

John Siegenthaler: New in the neighborhood

John Siegenthaler, P.E.

December 5, 2019

This was quite a year for me on the home front. On fairly short notice, my wife and I found out that our daughter Heidi and her husband Andy would be building a house about 500 feet down the road from us.

The Glitch and Fix: Keep the cost down

John Siegenthaler, P.E.

November 20, 2019

An installer is asked to connect an old (but still working) propane-fueled cast-iron boiler, which was salvaged from another project, to a slab-on-grade floor heating system in a new workshop.

Single coil solution

Optimizing heat exchanger performance in renewable energy systems.

John Siegenthaler, P.E.

November 15, 2019

Some renewable energy heat sources require large thermal storage tanks. Examples include systems’ biomass boilers and solar thermal collectors.

John Siegenthaler: Low temperature leverage

A novel hardware combination offers several benefits.

John Siegenthaler, P.E.

November 8, 2019

Because they generate heat intermittently, renewable energy heat sources such as solar thermal collectors and pellet boilers require thermal storage tanks. So do storage-based systems using off-peak electricity, or micro combined heat and power (MCHP) generation.

John Siegenthaler: Expansion etiquette

Expansion tanks perform a simple but vital function in all closed-loop hydronic systems.

John Siegenthaler, P.E.

October 4, 2019

When water is heated, the space required for each molecule increases. Any attempt to prevent this expansion will be met by tremendous forces.

The Glitch and Fix: Overly complex

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.

Modern Hydronics Done Right Volume 4

eBook

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.