Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

piping new boiler to counterflow system

JM_2 Member Posts: 108
Should the piping be left the same, no hartford loop?


  • joe_14
    joe_14 Member Posts: 138

    you dont need a hartford loop with a counter system.because you are not returning water to the bottom of the boiler.yuo need a hartford loop when you return condensate to the bottom of the boiler. however you still need that equalzing line. when i replace a system likes i drip the feeds right after the riser nintey. i drip to the bottom of the boiler thru a wet return which is part of the hartford loop that you will need to install now because you now have a wet return need this to protect boiler if any part of the return leaks. i drip the feeds so the return condensate dosent flow back to the header and rob the steam of its latent heat

    hope this helps


  • JM_2
    JM_2 Member Posts: 108

    Here is a diagram of the system, ( This is on a house I am considering buying). No Hartford loop and i dont see the equalizer. Each main drips down to the bottom of the boiler right after the header. So what should it look like, and what would it look like if i had a new boiler installed.

  • Al Letellier
    Al Letellier Member Posts: 781
    counterflow system

    We just did two of these last week up here. We don't see too much counterflow but they're fun to pipe. Leave the piping as is or do what we do. That riser out of the boiler is piped up and above the mains and comes back down to feed them (if you have the room). then we pipe in the two drip legs as close as possible to the tee and drop directly into the bottom of the boiler. they can tie together in a manifold before entering the boiler as long as it's done below the water line.
    Make sure the new boiler is sized as close to the connected load as possible and that the mains have plenty of pitch up and away from the boiler

    To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"
  • Follow the instructions with the new boiler

    If that old boiler has room inside for the water to separate from the steam, it's fine. That won't matter a bit when you replace the boiler with one that needs an equalizer and header. Each boiler has it's own instructions.

This discussion has been closed.