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The covering of thermal insulation around a boiler.

A unit of measurement of the power of a steam boiler; equivalent to the evaporation of 34.5 lb of water

An automatically-controlled valve for maintaining a desired amount of water in a boiler.

A vessel designed to receive the discharge from a boiler blow-off outlet where the discharge is cooled to a temperature

Insurance specifically written to cover steam boilers and other pressure-related equipment in a building.

A closed vessel in which a liquid is heated or vaporized by the direct application of heat to the outside

Any oil, but esp. linseed oil, which has been partially polymerized by heating at about 500°F (260°C) together with driers