This section is your guide to hot-water heating systems with information about system design and piping, air elimination, pumping away, primary-secondary pumping, valves, radiators, troubleshooting tips, and more.
In this excerpt from his Classic Hydronics seminar, Dan Holohan tells a story about a mansion that had two Ideal Redflash boilers, each with a rating of 500,000 Btuhs. Da...
The heating business has a way of humbling you. After more than 25 years of running service calls on all types of heating and cooling systems, I had managed to tackle the...
Give water a path and it will take it. But which path? When I was first learning about hydronics, a guy I worked with, who was 15 years older than I was, told me to imagi...
I fought the law and the law won. That should be the favorite song of any installer who tries to fight this one. Mother Nature is stubborn when it comes to evening out th...
Ah, air! It's grand for living creatures, but often a problem for hydronic heating systems Air is basically 80% nitrogen and 20% oxygen. Oxygen likes to corrode iron and ...
A Wallie, Bio, posted this video as a part of a great thread that Delta T, another Wallie, started. He posted: Thought I would share this trick for getting an old threade...
For want of a vacuum breaker, water hammer destroyed this heat exchanger. The call came in when I was young, eager, and paying close attention to the grown-ups. I had bee...
Here's Johnny! It sounded like someone was coming through the front door with a fire axe. We were sound asleep and then it arrived, as it did night after night, all winte...
Marianne and I were at the 5 PM mass last Saturday. We like going to that mass because it allows us to be lazy in bed with newspapers and coffee on Sunday mornings. We've...
Packaged boilers have been popular for a very long time and they sure do make a contractor’s life easier. These days, most packaged boilers come with a circulator in the ...