Click here to Find a Contractor in your area.
Welcome! Here are the website rules, as well as some tips for using this forum.

If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
Need to contact us? Visit

Peerless indirect

mcoeksmcoeks Member Posts: 6
I have a peerless boiler PT-140 and want to pair it with an indirect peerless PT-50. The piping distance between the units is 4 feet. The piping on the boiler is 1 inch and the indirect is 1-1/4. Can I use 3/4 to connect the two or should I do 1 inch?



  • mcoeksmcoeks Member Posts: 6
    1" is coming off the boiler so would it be worth it to make it 1.25". Also with the units being so close together wouldn't sure if the piping size mattered?

    Thanks for your help.
  • EBEBRATT-EdEBEBRATT-Ed Member Posts: 7,038
    your set up for 1" off the boiler so go with that. The cost difference between 1" & 3/4" on a short run isn't much. If you use 3/4 you might regret it. 1" will give you at least 80k capacity.
  • mcoeksmcoeks Member Posts: 6
    Another question, I have the set point for DHW at 160. On the boiler I can limit the input for a DHW load, should I limit it down or leave it 100%?

Sign In or Register to comment.


It looks like you're new here. If you want to get involved, click one of these buttons!