I've been noticing a strange low pitched noise/vibration in my home, that I was able to determine only is occuring when the gas water heater is firing. At first I could not determine where the noise was coming from at all, it sounds pretty non-directional. In the basement it sounded like it might be upstairs and visa versa. Finally I was able to hear the noise very loudly by the gas meter outside.
This appears to be the source of the noise, or more likely the circular regulator just before the meter. The noise then reverberates through the house via the black iron gas line that leads to the furnace & water heater. I suspect the noise will also occur when the furnace is operating, but that is still out of season.
Before I call the gas company [Keyspan Energy- New England], has anyone experienced this? Is it just a big annoyance or could it mean trouble. Also, is the gas company responsible for the equipment before and up to the meter if the meter is outsid ths house?
Thanks