mule_roany_mare t1_irmjt7q wrote
Reply to comment by ZweitenMal in Your annual reminder that if your apartment has a radiator, don't open and close the valve. This can create condensation in the system causing a knocking sound. Radiators are designed to be used with a series of open windows to balance heat. by emeyer94
This is true to an extent, steam can be an absolute bitch to balance.
A lot of the one pipe steam in NYC was designed for coal boilers which came to temperature & pressure very slowly compared to the efficient gas boilers currently installed.
You are way out of spec from “design” already. I don’t know what the theory of why it matters is, but in practice it does not matter much or all of the time.
Hell, con Ed will give you TRVs which close off a radiator about as effectively as if the valve is closed, the boiler can’t tell the difference
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