Dec 18, 2000 · Then silence reigned throughout the house. But soon there arose from some remote part—it might easily have been either cellar or attic—a stertorous, monotonous, regular snoring, a dull, prolonged rumbling, varied by tremors like those of a boiler under pressure of steam. Monsieur Follenvie had gone to sleep.
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Low pressure steam or hot water boiler means an electric, gas or oil burning furnace designed to supply low pressure steam or hot water for space heating application. A low pressure steam boiler operates at or below 15 pounds psig steam pressure; a hot water boiler operates at or below 160 psig water pressure and 250 °F. water temperature.
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