one riser or two riser boiler for this application

Kuti

getting ready to replace the near boiler piping. Is it ok to have only one riser? Or replace Boiler as well with two risers?

mattmia2

You need to find the manual for that boiler and look at the diagram in it. One is probably ok, reducing it like it currently is probably is not (and I wouldn't recommend it even if the manual says it is ok).

Obviously the order is all wrong in the header.

ChrisJ

For that boiler?
I'd do a single 2" or 3" at the most into a proper header.

Check and see what the manufacturer recommends, but regardless IT NEEDS A PROPER HEADER!

TonKa

If that's an EG-30 or EG-35, one 2 inch riser to a 2 inch header with a 1 1/2 inch equalizer is the minimum recommendation by the manufacturer.

EdTheHeaterMan

It is amazing what you can find on the internet if you look hard enough.

PEG35PIN Steam boiler manufactured in 2008, shipped without a vent damper

This is the piping recommended by the manufacturer.

EdTheHeaterMan

It appear that the header is built the wrong way. The steam turns and goes to the right of the boiler riser and the equalizer goes to the left of the boiler riser. Any condensate in the header can not get to the equalizer because the boiler riser is in the way. Here is a suggested piping design that may work better.


Here is your manual for that boiler.https://www.weil-mclain.com/sites/default/files/field-file/eg-peg-egh-series-4-manual_1.pdf