Articles by John Siegenthaler, P.E.

There's a new group of professionals who want and need what we offer.

Over the last few years, hydraulic separators have been gaining popularity in the North American hydronics market.

Cast-iron boilers still have a future.

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.