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This Week's Steamer Replacement
1960s American-Standard atmospheric on a Broomell system, rotted out. I didn't get the shots until after the demo had started, but the old boiler had only a single 2-inch pipe connecting it to the 3" steam main, which then splits into two 2-1/2" counterflow mains. We'd already done the venting, as evidenced by the Gorton #2 on the dry return- the two mains also have Gortons.