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Main Pipe Sizing?
AdmiralYoda
Member Posts: 683
Is there a chart for minimum vs ideal main sizing? I realize bigger is generally better but I've got a quick question.
I have two mains. One is about 35-40ft long and is 2" and has an EDR load of about 115. This one is fine.
The other one needs rebuilding as a couple of radiators have been moved and it is piped very poorly. It is about 30-35ft long and is currently 1.5" with an EDR load of about 125.
It heats okay but I'm redoing some near boiler piping and I'd like to straighten this out. Should I go 1.5" or 2" like the other main?
Thanks guys!
I have two mains. One is about 35-40ft long and is 2" and has an EDR load of about 115. This one is fine.
The other one needs rebuilding as a couple of radiators have been moved and it is piped very poorly. It is about 30-35ft long and is currently 1.5" with an EDR load of about 125.
It heats okay but I'm redoing some near boiler piping and I'd like to straighten this out. Should I go 1.5" or 2" like the other main?
Thanks guys!
0
Comments
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You really should have a copy of The Lost Art... the answer's in there. However. Is this one pipe or two pipe? It makes a difference.Br. Jamie, osb
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England0 -
@Jamie Hall Good point! That has been on my things to buy list! It is single pipe, counterflow.0
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Really should be 2 inchBr. Jamie, osb
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England0 -
One of the few times “Bigger is Better”!0
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2" it is!0
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