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2-pipe steam with no traps?
I looked at a steam job in an 1880 brick house. It has Griffing radiators, and no apparent steam traps on the radiators. Nor are the mains trapped. It also has one radiator hooked up with one-pipe steam. There are about five of the old radiators and some column radiators in the house. The customer is currently using 2000 gallons of fuel oil per year. Do I add steam traps?
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