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.
Primary-secondary pumping has become pretty popular nowadays, especially with boiler manufacturers. They love it because it offers a simple way to protect their boilers a...
The guy had told his architect to have a corner of his basement dug out so that he could play half-court basketball with his two kids. The ceiling was 14 feet above the p...
A friend of mine who happens to be a contractor went out to look at a hot water boiler that was causing its owner a problem a few years back. It seems the flame had chewe...
Q: What's loop hot water heating? A: It's the simplest method of heating with hot water. Each zone consists of a single loop made up of the pipe and the radiators.
We of the Hydronic Realm often don't think too much about Indoor Air Quality, but that mindset is obsolete. We need to look at the Big Picture, not just the heating syste...
Q: What's "indirect" heating? A: It's a method of heating the old-timers used to warm fresh air before it entered a building. Q: How did they do this?
Mark Honeywell. Yeah, that one. The guy who has his name on all those thermostats.
Now there’s a question for you. The feed valve’s job is to, well, feed. You figure out the height of the hydronic system from the point where the feed valve is to the hig...
It's really not your mother's fault. How could she have known you would wind up in such a dilemma one day because of a check valve? Here you are, with sediment clogging u...
Q: What's the principle of the diverter-tee system? A: This system lets you supply hot water to a radiator and return cooler water from the same radiator by using a singl...