Noises You Shouldn't Hear from Your Boiler
2015-2-4u2002·u2002Let's examine some of the noises that you really don't want to hear from your boiler, and what you should do if you do hear them. Rumbling. A rumbling noise coming from your boiler is a sign that it is kettling. Kettling is a serious issue that is caused by mineral deposits building up on the inside of the boiler's heat exchanger.
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