Hartford Loop on 1 pipe systems?

jgach11886

I was curious if the hartford loop is also on 1 pipe steam systems? I have a lot to learn about piping steam systems, I understand the point of the drop header, and that returns need to be pitched, but I believe the 2 pipe systems are the ones that have piping going around the exterior of the basement pitched back to the boiler, and those make sense to me to have a hartford loop? Just curiuous if its only on 2 pipe or also on 1 pipe?

thx

j a_2

Honestly,it’s best you order up one of Dans steam books...

KC_Jones

A parallel flow system will have the Hartford loop, 1 pipe 2 pipe doesn't matter.
On a counter flow they can be put in, but to my knowledge aren't necessary due to the lack of wet returns being able to drain down the boiler.

Fred

As @KC_Jones says, any steam system that has wet returns that are at or just a few inches above the floor should have a Hartford or Gifford loop so as to keep as much water as possible, in the boiler if the wet return were to spring a leak.

Ironman

Here's a good steam primer:

http://www.peerlessboilers.com/DesktopModules/Bring2mind/DMX/Download.aspx?EntryId=140&PortalId=0&DownloadMethod=attachment

EBEBRATT-Ed

One pipe or two pipe is determined by the number of pipe connections to the radiators......not the boiler. The piping around the boiler is in general the same for both systems

JUGHNE

I believe your other post you stated you work for a service company.
You would like Dan's book "The Lost Art of Steam Heating-revisited"
Great read, makes learning a lot very easy. If you have any interest in the subject, it is a hard book to put down. IMO