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John Siegenthaler, P.E.

John Siegenthaler, P.E., is a consulting engineer and principal of Appropriate Designs in Holland Patent, New York. In partnership with HeatSpring, he has developed several online courses that provide in-depth, design-level training in modern hydronics systems, air-to-water heat pumps and biomass boiler systems. Additional information and resources for hydronic system design are available on Siegenthaler’s website, www.hydronicpros.com.

Articles

ARTICLES

The Glitch and Fix: Lose the loop

The Glitch and Fix: February 2019

John Siegenthaler, P.E.

February 28, 2019

The schematic in Figure 1 represents a drawing I recently reviewed for a proposed system that was to supply three zones of finned-tube based, two zones of low-temperature radiant panel heating, and an indirect domestic water heater.

John Siegenthaler: 5 products the hydronics industry needs

These products would help fill needs within the hydronics market.

John Siegenthaler, P.E.

February 26, 2019

All companies that supply hydronic heating hardware to the North American market strive to offer products that are currently in demand. Some even look farther down the road, anticipating where the market is headed.

The Glitch and Fix: I'll do it anyway

The Glitch and Fix: January 2019

John Siegenthaler, P.E.

January 9, 2019

An installer is asked to install heating in the slab floor of a farm workshop. The owner has already purchased a used cast iron boiler that will run on propane.

John Siegenthaler: How to use a variable-speed circulator for boiler protection

Any boiler can become a condensing boiler under the right conditions.

John Siegenthaler, P.E.

January 4, 2019

All boilers that burn hydrocarbon fuels (natural gas, propane, oil, wood) produce water vapor as a byproduct of combustion.

Modern Hydronics Done Right Volume 2

eBook

John Siegenthaler, P.E.

December 7, 2018

The second of five eBooks for the hydronics market is here! 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.

The Glitch and Fix: Sometimes warm, sometimes not

The Glitch and Fix: December 2018

John Siegenthaler, P.E.

December 7, 2018

The Glitch: Eager to keep up with this new technology, an installer decides to install a hydraulic separator between a boiler and distribution system as shown below.

John Siegenthaler: How to pipe multiple water-to-water heat pumps

How to pipe multiple water-to-water heat pumps.

John Siegenthaler, P.E.

December 5, 2018

Water-to-water heat pumps supplied from closed earth loops are ideal heat sources for low-temperature hydronic floor-heating systems.

The Glitch and Fix: Subtle differences

The Glitch and Fix: November 2018

John Siegenthaler, P.E.

November 27, 2018

An installer needs to provide heat from a conventional gas-fired boiler to a large buffer tank. The tank is necessary because of a highly zoned distribution system.

John Siegenthaler: Modern biomass meets state-of-the-art hydronics

This wood-pellet system example is intended to supply space heating and domestic hot water.

John Siegenthaler, P.E.

November 14, 2018

There will always be fringe markets for products that use renewable energy to provide marginal heating comfort. These markets survive because early adopters willingly sacrifice superior comfort as the perceived price for using renewable energy.