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.
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...
First things first. Before the 1920s, most steam contractors used cast-iron, column-type radiators. Those are the free-standing ones with the real wide sections.
Q: Is it possible for me to use the condensate in a steam boiler to make a hot water zone? A: Sure! Heating professionals have been doing this for years in areas such as ...
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 ...
It all started when a friend called to tell me about this old gravity hot-water system that had him baffled. “There’s no expansion tank anywhere on this job,” he said. “Y...
This helpful chart will show you the maximum delivery capacity of cubic feet of gas per hour of IPS pipe carrying natural gas of 0.60 specific gravity based on a pressure...
Vacuum Gauges Paint a Picture for You By painting a picture I simply mean that when you use this instrument it will reveal some much needed information when diagnosing a ...
When I was still young and very wet behind the ears I worked for a manufacturers representative in New York City and we sold Bell & Gossett pumps to wholesalers. It was m...
In 1994, I wrote a book called, Pumping Away, which I began by remembering the late, great Gil Carlson. Here's what I wrote: When I knew Gil Carlson, he was never far fro...