Add Yahoo as a preferred source to see more of our stories on Google. Is your boiler making noises out of the norm? While some sounds are normal, it's best to follow your instincts if they seem ...

3. Gurgling Noises A heater making gurgling noises or bubbling noise during the heating cycle usually indicates an issue with water or air in a boiler or radiator system.

Is your boiler making noises out of the norm? While some sounds are normal, it's best to follow your instincts if they seem suspicious. Home systems require regular maintenance, but even with routine ...