Oil or gas-fired package boilers are frequently described as ‘fully automatic’, giving the impression that once started they can be left to operate without supervision. This is possible, but dangerous. It could, in the extreme, cause a boiler explosion. It would certainly make the boiler operate well below its optimum efficiency. No boiler ought to be run without a qualified operator being on the site. He need not be in the boiler room all the time, but he should be where he can hear an alarm and act on it. It would be more accurate to describe package boilers as being automatic only to the extent that they are fitted with controls to maintain combustion efficiency under varying load conditions and to control water level, and that this enables the amount of attendance to be reduced.
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W. S. Robertson
- Macmillan Education UK
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