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Single-pipe steam tuneup

Kevin_23 Member Posts: 8
I'd like to tune up my 30-year old Weil-McLain a little more. I replaced the steam main vent with a new Hoffman 75; however, after 4 months of usage it now hisses steam VERY loudly. Is there a way to clean this $75 vent? Or do I need to replace it? And if I need to replace, should I install a Y-strainer prior to the replaced vent to keep it clean?

Now, the boiler is oversized for our house because someone removed a radiator years ago. It is a 245,000 btu and our house seems to require a 200,000 (or slightly smaller). Our boiler short cycles, and after reading Dan's book I set the pressuretrol to 0.5 cut-in to 2.0 cut-out. However, the boiler still short cycles. Should I add a 2nd Hoffman #75 next to the other? Is that too much venting?


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