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Posted by Steve Garson on December 16, 2004 at 18:56:56:
I have a one-pipe steam system with a water loop running off the boiler as well. I want to upgrade the boiler (70 years old) and a plumber friend told me use the current radiators for hot water. The old rads are the type that can be used for water and running a return from the radiators is doable, assuming the plug can be removed from the top end. There is adequate EDR at 170 degrees.
My question: How does one pressure test the present system to determine if there are small leaks that would be a disaster with hot water? Does this seem like a sensible thing to do? I am told that the comfort and energy savings will be quite significant. much more so than just replacing the steam boiler since the water temp can be modulate
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