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Posted by Ken on February 16, 2002 at 07:39:29:
In Reply to: water level posted by Kai M. Klemm on February 14, 2002 at 19:41:33:
: I have a H B Smith steam boiler in my townhouse. Last year the feed water control (McDonnell #67) was replaced. I have noticed that this year the water level is only 2 inches above the low end of the water glass, the automatic feed will go on if I drain water from the boiler but only refills to this low level. The water feed also seems to come on more often but only for a short time. What is wrong?
This is normal. 2" above the bottom of the gage glass is the spot virtually all boilers equipped with automatic feeders will stay.
Be careful however, reliance on autofeeders will frequently 'mask' the problems associated with steam and water leaks within the heating system. Feeders typically make a snapping sound when triggered. If possible, try and recall how frequently you hear the feeder 'sanp' a day or week. A general rule of thumb is to not have to add more than 2" of water to a steam boiler in any week if very cold. If mild, 2" a month. If you suspect the feeding is occurring more frequently, perhaps some checking around needs to be done - and quick! Steam boilers do not last very long when subjected to high water usage.
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