Pressure Reducing Valves
HeatingHelp.com partnered with Caleffi on the Hot Topics with Hot Rod webinar series. In this episode, Bob "Hot Rod" Rohr talks about pressure reducing valves. Ever wonde...
Hot-Water Heating → Valves Help Topics
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.
Recent Articles in Hot-Water Heating → Valves
Mixing Valves
HeatingHelp.com is partnering with Caleffi on the Hot Topics with Hot Rod webinar series. In this episode, Bob "Hot Rod" Rohr talks about how to size a mixing valve...
Using Mixing Valves for Radiant Heating
In this excerpt from his Classic Hydronics seminar, Dan Holohan shares his knowledge about mixing low-temperature radiant heating with a higher-temperature hot water heat...
Honeywell’s Unique Valve
Mark Honeywell invented the Unique Valve in the early 1900s. It gave him a way of connecting a hot-water radiator at just one side instead of two sides. The Unique valve ...
Banging Zone Valves
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...
Should Fill Valves Be Left Open or Closed?
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...