That kind of treatment will ruin the best boiler in
existence. I don't mean that once or twice will do it, but to keep it
up will do it. Get your shovel of coal and when you are ready to throw
it in, open the door quickly and close it at once. Make it one of your
habits to do this, and you will never think of doing it in any other
way. If it becomes necessary to stop your engine with a hot fire and a
high pressure of steam, don't throw your door open, but drop your damper
and open the smoke box door.
If, however, you only expect to stop a minute or two, drop your damper,
and start your injector if you have one. If you have none, get one.
An independent boiler feeder is a very nice thing, if constructed on the
proper principles. You can't have your boiler too well equipped in this
particular.
PART FOUR. _______
A boiler should be kept clean, outside and inside. Outside for your own
credit, and inside for the credit of the manufacturers. A dirty boiler
requires hard firing, takes lots of fuel, and is unsatisfactory in every
way.
The best way to keep it clean is not to let it get dirty.
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