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Corrosion is the accumulation of sludge on boiler heating surfaces.

Corrosion is the accumulation of sludge on boiler heating surfaces.

Corrosion is the accumulation of sludge on boiler heating surfaces.

Heating feedwater removes ___.

Hot water heating systems produce heat more consistently than steam heating systems.

Boilers equipped with a quick-opening valve and a slow-opening valve must have the quick-opening valve closest to the boiler shell.

Hot water heating systems produce heat more consistently than steam heating systems.

Steam traps are ___ devices that increase overall system efficiency by removing air and condensate without the loss of steam.

Fuel oil burners are designed to provide fuel oil in a ___.

___ -pipe systems are used when different parts of a system require heating and cooling simultaneously.