Articles by John Siegenthaler, P.E.

What to do when you have too much of a good thing.

Increasing fuel costs, in combination with the desire to be carbon-neutral, has prompted a homeowner to purchase a wood gasification boiler.

The American cultural mindset about having convenience at any cost must be changed.

A hydronic system is to be designed to supply four identical panel radiators and an indirect water heater from a gas-fired, sectional cast-iron boiler.

Low-mass heat emitters are essential to the future of hydronic heating.

Here’s a schematic based on a sketch that was sent to me. Make a list of at least five things you think should be changed.

Use two or more water-to-water heat pumps as a staged heating and cooling plant.

Joe’s Plumbing gets a call to install solar water heating for a long-time customer. 

Have you tried hydronic cooling?

An old New England home has been heated with a two-pipe steam system serving plenty of sturdy cast-iron radiators.